CN113252612A - Slurry uniformity detection device and method - Google Patents
Slurry uniformity detection device and method Download PDFInfo
- Publication number
- CN113252612A CN113252612A CN202110567386.4A CN202110567386A CN113252612A CN 113252612 A CN113252612 A CN 113252612A CN 202110567386 A CN202110567386 A CN 202110567386A CN 113252612 A CN113252612 A CN 113252612A
- Authority
- CN
- China
- Prior art keywords
- slurry
- detection
- uniformity
- light source
- light intensity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N2021/1738—Optionally different kinds of measurements; Method being valid for different kinds of measurement
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
本发明提供一种浆料均匀性检测装置及方法，包括检测单元，内部设有运输管道以及正对于所述运输管道的检测光源，还设有接收所述运输管道反馈光束的接收装置；计算单元，与所述接收装置电连接，计算所述接收装置收集的单位时间内的光强值数据，将所述光强值数据对所述单位时间数据求导，得出浆料在运输过程中的均匀性变化数据。本发明通过检测单元的检测光源对流动的浆料进行光源照射，利用接收装置接收照射后的光束得到光强值信息，计算单元将采集到的光强值对采集时间求导，并以二维坐标图的方式进行显示，通过求微分的处理方式，直观反映了浆料在输送过程中均匀性的变化，在实际的工程应用中提供了先验性的指导。
The invention provides a slurry uniformity detection device and method, comprising a detection unit, a transportation pipeline and a detection light source facing the transportation pipeline, and a receiving device for receiving the feedback beam of the transportation pipeline; a computing unit , is electrically connected to the receiving device, calculates the light intensity value data per unit time collected by the receiving device, and derives the light intensity value data from the unit time data to obtain the Uniformity variation data. In the present invention, the light source irradiates the flowing slurry through the detection light source of the detection unit, and the light intensity value information is obtained by receiving the irradiated light beam by the receiving device, and the calculation unit derives the collected light intensity value from the collection time, and calculates the value of the light intensity in a two-dimensional manner. It is displayed in the form of a coordinate diagram. Through the differential processing method, the change of the uniformity of the slurry during the conveying process is intuitively reflected, and a priori guidance is provided in practical engineering applications.
Description
Technical Field
The invention relates to the technical field of material characteristic detection, in particular to a device and a method for detecting slurry uniformity.
Background
The slurry is a solid-liquid mixture with a certain concentration formed by uniformly mixing a crushed solid material and a liquid according to a certain particle size distribution, and the solid-liquid mixture is generally conveyed by a pipeline and then utilized, so that the material to be treated or used is conveyed in a slurry form and is widely utilized in various industries. The uniformity of the slurry is an important parameter, and most people currently carry out detection research on the uniformity of the slurry in a standing state, but the uniformity of the slurry in a conveying process is of little concern. If the uniformity of the slurry changes in the conveying process, namely the concentration difference of target materials passing through a certain cross section in two adjacent unit time is large, the smoothness of the slurry in the pipeline is influenced, the blockage problem is caused, in addition, the utilization of the slurry in the subsequent process is influenced by the different concentrations of the target materials at the outlet end of the pipeline, and the problems of incomplete reaction, defective process products and the like are caused.
In the prior art, when uniformity detection is carried out on material slurry, most of detection devices detect the standing state of the material slurry, and the stability of the slurry in the standing state is evaluated to be different from the stability change of the slurry in the practical application process, so that the uniformity detection of the slurry in a conveying or flowing state is difficult to achieve. At present, no device and method for detecting the uniformity of slurry in the conveying process exist in China, the existing device for detecting the uniformity and stability of colloidal solution and liquid generally comprises a light source and a photoelectric detector, and the existing device only detects the sedimentation stability of the material in a standing state, so that the uniformity change of the slurry in the actual utilization process cannot be truly reflected. Therefore, there is an urgent need for a device and method for detecting the uniformity of slurry during the transportation process, which can truly reflect the variation and quality of the uniformity of slurry during the dynamic transportation process.
Disclosure of Invention
The invention provides a device and a method for detecting the uniformity of slurry, which are used for solving the defect that the uniformity of the slurry in the motion process is difficult to detect in the prior art, realizing the effective detection of the uniformity of the slurry in the dynamic process of conveying, and reflecting the variation of the uniformity of the slurry in the conveying process more intuitively.
The invention provides a slurry uniformity detection device, comprising:
the detection unit is internally provided with a transport pipeline and a detection light source opposite to the transport pipeline, and is also provided with a receiving device for receiving feedback light beams of the transport pipeline;
and the calculating unit is electrically connected with the receiving device, calculates the light intensity value data collected by the receiving device in unit time, and differentiates the light intensity value data on the unit time data to obtain the uniformity change data of the slurry in the transportation process.
According to the slurry uniformity detection device provided by the invention, the receiving device comprises a first photosensitive assembly and a second photosensitive assembly, wherein the first photosensitive assembly is arranged on the other side, opposite to the detection light source, of the conveying pipeline and used for receiving transmitted light; the second photosensitive assembly faces to one side, close to the detection light source, of the conveying pipeline, wherein a connecting line from the second photosensitive assembly to the center of the conveying pipeline and a light beam of the detection light source are arranged at an angle of 0-90 degrees and used for receiving scattered light.
According to the slurry uniformity detection device provided by the invention, a connecting line from the second photosensitive assembly to the center of the conveying pipeline is arranged at an angle of 90 degrees with a light beam of the detection light source.
According to the slurry uniformity detection device provided by the invention, the first photosensitive component and the second photosensitive component are photosensitive diodes.
According to the slurry uniformity detection device provided by the invention, the first photosensitive assembly and the second photosensitive assembly further comprise amplifying circuit modules, and the amplifying circuit modules are electrically connected with the computing unit through the signal conversion module.
According to the slurry uniformity detection device provided by the invention, the detection light source is a near-infrared light source.
According to the slurry uniformity detection device provided by the invention, the detection light source is connected to the inner wall of the detection unit through the fixed support.
The slurry uniformity detection device provided by the invention further comprises a slurry conveying line, wherein the slurry conveying line comprises a material cylinder at one end part of the conveying pipeline, a collecting container at the other end part of the conveying pipeline and a material pump on the conveying pipeline, and the middle part of the conveying pipeline penetrates through the detection unit.
The invention also provides a slurry uniformity detection method, which comprises the following steps:
irradiating slurry flowing in a conveying pipeline by a detection light source, collecting feedback light beams of the conveying pipeline by a receiving device, and transmitting signals to a computing unit;
and the calculating unit calculates and processes the light intensity value data in unit time collected by the receiving device to obtain the uniformity change data of the slurry in the transportation process.
According to the slurry uniformity detection method provided by the invention, the calculation unit is used for calculating the unit light intensity value data and the unit time data continuously to obtain the change rate of the transmitted light intensity or the scattered light intensity, and the change data of the uniformity of the slurry in the conveying process is obtained according to the change rate of the transmitted light intensity or the scattered light intensity.
The invention provides a device and a method for detecting the uniformity of slurry, which are characterized in that a detection light source of a detection unit irradiates flowing slurry, a receiving device receives irradiated light beams to obtain light intensity value information, a calculation unit differentiates the acquired light intensity value with acquisition time and displays the acquired light intensity value in a two-dimensional coordinate graph mode, and the variation of the uniformity of the slurry in the conveying process is intuitively reflected through the differentiation processing mode. The device and the method can effectively detect the uniformity of the slurry in the motion process, solve the problem that the uniformity of the slurry is difficult to observe and quantitatively characterize in the dynamic process of conveying, and provide prior guidance in practical engineering application.
Further, the invention arranges the transmitted light receiving device and the scattered light receiving device, can obtain the change rate of the intensity of the transmitted light or the scattered light, and reflects the change of the uniformity of the slurry in the conveying process according to the change rate of the intensity of the transmitted light or the scattered light; meanwhile, selective uniformity detection can be carried out on the slurry with different concentrations, and effective uniformity detection can be carried out on the slurry within a wider concentration range, so that the application range of the invention is enlarged.
And furthermore, the pumping device is adopted to enable the slurry to be detected in the material cylinder to be in a flowing dynamic process, and the detection unit and the calculation unit are matched, so that the uniformity of the slurry to be detected in the moving process is detected.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a slurry uniformity detection apparatus provided by the present invention;
fig. 2 is a schematic view of the internal structure of the detection unit provided by the present invention.
Reference numerals:
1. a material cylinder; 2. A material pump; 3. A calculation unit;
4. a signal conversion module; 5. A detection unit; 51. A near-infrared light source;
52. a photodiode; 521. A first photodiode; 522. A second photodiode;
53. an amplifying circuit module; 531. A first amplifying circuit module; 532. A second amplifying circuit module;
54. a fixed support; 6. A collection container; 7. A transport pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specific embodiments of the present invention are described below in conjunction with fig. 1-2:
the embodiment of the invention provides a slurry uniformity detection device, as shown in fig. 1, the detection device comprises a detection unit 5 and a calculation unit 3, the detection unit 5 is a closed box body, the outer wall of the box body is made of light-tight materials, a horizontally-penetrating transport pipeline 7 is arranged in the box body, the transport pipeline 7 belongs to a slurry transport line, the slurry transport line comprises a material cylinder 1 at one end of the transport pipeline 7 and a collection container 6 at the other end of the transport pipeline 7, and the material cylinder 1 and the collection container 6 are respectively positioned at two sides of the detection unit 5. The conveying pipeline 7 is also provided with a material pump 2 for providing power for slurry conveying. The slurry enters the conveying pipeline 7 from the material cylinder 1 under the action of the material pump 2 and passes through the detection unit 5 through the conveying pipeline 7, the detection unit 5 detects the slurry flowing in the conveying pipeline 7 inside the detection unit, and the detected slurry enters the collection container 6 through the conveying pipeline 7 to be stored. The pumping device is adopted to enable the slurry to be detected in the material cylinder 1 to be in a flowing dynamic process, and the detection unit 5 and the calculation unit 3 are matched, so that the uniformity of the slurry to be detected in the moving process is detected. The detection unit 5 can transmit the detected data to the calculation unit 3, and the calculation unit 3 can collect the uniformity data of the slurry in the motion process through calculation processing on the data information.
In this embodiment, the slurry refers to a binary or multicomponent mixture of solid and liquid phases, and the liquid phase includes various solvents such as water, organic solvents, and other inorganic solvents. The embodiment can meet the requirement of detecting the uniformity of binary or multi-element slurry.
Specifically, as shown in fig. 2, the transportation pipeline 7 horizontally penetrates through the detection unit 5, and a detection light source facing the transportation pipeline 7 is further disposed on one side inside the detection unit 5, preferably, the detection light source is a near-infrared light source 51, and in order to ensure that the installation angle direction of the near-infrared light source 51 is stable, a fixed support 54 is disposed between the near-infrared light source 51 and the detection unit 5 to ensure that the light beam emitted by the near-infrared light source 51 is facing the transportation pipeline 7. A receiving device is further provided inside the detection unit 5, and the receiving device receives the light beam fed back after the near-infrared light source 51 irradiates the transportation pipeline 7. Specifically, the receiving device is composed of a photodiode 52 and an amplification circuit block 53, the photodiode 52 is embedded in the amplification circuit block 53, and the amplification circuit block 53 is provided on the inner wall of the detection unit 5. The receiving device further includes a first photosensitive element, which is a first photosensitive diode 521 and a first amplification circuit module 531, and a second photosensitive element, which is a second photosensitive diode 522 and a second amplification circuit module 532.
In this embodiment, the first photodiode 521 and the first amplifying circuit module 531 are disposed right opposite to the near-infrared light source 51, that is, a line connecting the first photodiode 521 and the center of the transportation duct 7 is on the same straight line with the light emitted from the near-infrared light source 51. The first photodiode 521 and the first amplification circuit module 531 are disposed on the other side of the transport pipe 7 with respect to the near infrared light source 51 to receive transmitted light passing through the transport pipe 7 and the paste, thereby collecting intensity information of the transmitted light. The second photodiode 522 and the second amplifying circuit module 532 are right opposite to one side of the transportation pipeline 7 close to the near-infrared light source 51, that is, a connecting line of the centers of the second photodiode 522 and the transportation pipeline 7 forms an included angle of 0 to 90 degrees with light emitted by the near-infrared light source 51. Preferably, as shown in fig. 2, the angle is 90 degrees, that is, the second photodiode 522 and the second amplifier circuit module 532 are disposed right below the center of the transport pipe 7, and the connection line between the second photodiode and the center of the transport pipe 7 is perpendicular to the light emitted by the near-infrared light source 51, so as to receive the scattered light emitted by the near-infrared light source 51 after passing through the transport pipe 7 and the slurry, thereby collecting the intensity information of the scattered light.
It should be noted that, in the present embodiment, the near infrared light source 51 refers to an electromagnetic wave with a wavelength ranging from 780 nm to 2526nm, and is preferably 850 nm. The transport duct 7 is made of a material having high transmittance and low reflectance and absorption.
A signal conversion module 4 is arranged between the detection unit 5 and the calculation unit 3, the amplification circuit module 53 processes and transmits optical signals to the signal conversion module 4, the signal conversion module 4 converts the signals into electric signals and transmits the electric signals to the calculation unit 3, the calculation unit 3 continuously differentiates the acquired electric signals for acquisition time to obtain the change rate of the intensity of transmitted light or scattered light, the change rate is displayed in a two-dimensional coordinate graph mode, and the change of the uniformity of the slurry in the conveying process is reflected according to the change rate of the intensity of the transmitted light or the scattered light through the differentiation processing mode.
In the present embodiment, the material pump 2 includes, but is not limited to, various types of diaphragm pumps, rotor pumps, vane pumps, peristaltic pumps, screw pumps, gear pumps, centrifugal pumps, piston pumps, and the like.
The embodiment is provided with a transmitted light receiving device and a scattered light receiving device, can obtain the change rate of the intensity of transmitted light or scattered light, and reflects the uniformity change of slurry in the conveying process according to the change rate of the intensity of the transmitted light or the scattered light; meanwhile, selective uniformity detection can be carried out on the slurry with different concentrations, and effective uniformity detection can be carried out on the slurry within a wider concentration range, so that the application range of the invention is enlarged. The device can effectively detect the uniformity of the slurry in the motion process, solves the problem that the uniformity of the slurry is difficult to observe and quantitatively characterize in the dynamic process of conveying, and provides prior guidance in practical engineering application.
On the other hand, the embodiment of the invention also provides a method for detecting the uniformity of the slurry, which comprises the following steps:
step 1: adding the evenly stirred slurry into a material cylinder 1 for sample injection detection;
step 2: after the sample preparation is finished, the detection unit 5 is started, and the calculation unit 3 and the signal conversion module 4 are also started;
and step 3: after the step 2 is started, starting the material pump 2, and uniformly and quickly conveying the slurry to the detection unit 5 through the conveying pipeline 7;
and 4, step 4: when the slurry passes through the detection unit 5, the calculation unit 3 synchronously processes and displays data, and the data processing mode of the calculation unit 3 is specifically to continuously derive the acquired electric signal from the acquisition time to obtain the change rate of the intensity of transmitted light or scattered light, and the change of the uniformity of the slurry in the conveying process is reflected according to the change rate of the intensity of the transmitted light or the scattered light.
Wherein, it should be noted that the slurry in the step 1 is at least 100 ml; in the step 4, the collection time is at least one minute; the derivation time interval is not greater than 0.1 s.
The detection result in the step 4 is 'good' when the variation rate of the light intensity value is within +/-1; when the variation rate of the light intensity value is within +/-1 to +/-5, the light intensity value is qualified; when the rate of change of the intensity value is ± 5 or more, "poor".
The detection principle of step 4 is that a photoelectric detector is used for detecting the intensity change of transmitted light or scattered light to represent the uniformity change of the slurry in the conveying process in the pumping process of the slurry, and according to the Lambert-beer law, after light beams enter a sample, the intensity of the transmitted light is changed
Wherein I0The value of the incident light intensity is, r is the radius of the transport pipeline 7, l is the photon transmission mean free path, which is determined by the average particle size and the volume concentration of the system particles, therefore, under the condition that the transport pipeline 7, the particle size of the system particles and the incident light intensity are not changed, the uniformity change of the slurry passing through the detection point can be represented when the transmitted light intensity is changed. Furthermore, according to the Rayleigh scattering law, the intensity of scattered light in a direction of 90 DEG to the incident light
Wherein I0Is the value of the incident light intensity, V is the particle volume, and λ is the incidentThe method comprises the following steps that (1) the wavelength of light, N is the total number of particles in unit volume, and K is a coefficient, so that the uniformity change of slurry in the conveying process can be represented by detecting the intensity of scattered light under the condition that the wavelength of incident light, the intensity and the particle volume of a system are not changed; when the low-concentration slurry is detected, the uniformity change of the slurry in the conveying process is characterized by the change rate of the intensity of transmitted light. And the data processing result is displayed as a two-dimensional coordinate graph by taking the detected electric signal change rate as a vertical coordinate and the detection time as a horizontal coordinate, so that the uniformity of the reaction materials in the conveying process is visually changed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A slurry uniformity detection device, comprising:
the detection unit is internally provided with a transport pipeline and a detection light source opposite to the transport pipeline, and is also provided with a receiving device for receiving feedback light beams of the transport pipeline;
and the calculating unit is electrically connected with the receiving device, calculates the light intensity value data collected by the receiving device in unit time, and differentiates the light intensity value data on the unit time data to obtain the uniformity change data of the slurry in the transportation process.
2. The apparatus according to claim 1, wherein the receiving device comprises a first photosensitive element and a second photosensitive element, the first photosensitive element is disposed on the other side of the transportation pipeline opposite to the detection light source with respect to the detection light source and is used for receiving the transmitted light; the second photosensitive assembly faces to one side, close to the detection light source, of the conveying pipeline, wherein a connecting line from the second photosensitive assembly to the center of the conveying pipeline and a light beam of the detection light source are arranged at an angle of 0-90 degrees and used for receiving scattered light.
3. The apparatus of claim 2, wherein a line connecting the second photosensitive element to the center of the transportation pipe is disposed at 90 degrees to the light beam of the detection light source.
4. The apparatus according to claim 3, wherein the first and second photosensitive elements are photodiodes.
5. The apparatus according to claim 4, wherein the first and second photosensitive assemblies further comprise an amplifying circuit module electrically connected to the computing unit through a signal conversion module.
6. The apparatus according to claim 3, wherein the detection light source is a near infrared light source.
7. The apparatus of claim 3, wherein the detection light source is attached to an inner wall of the detection unit through a fixing support.
8. The apparatus of any one of claims 1 to 7, further comprising a slurry transport line, wherein the slurry transport line comprises a cylinder at one end of the transport pipe, a collecting container at the other end of the transport pipe, and a pump on the transport pipe, and the middle of the transport pipe penetrates through the detection unit.
9. The method for detecting the uniformity of the slurry is characterized by comprising the following steps of:
irradiating slurry flowing in a conveying pipeline by a detection light source, collecting feedback light beams of the conveying pipeline by a receiving device, and transmitting signals to a computing unit;
and the calculating unit calculates and processes the light intensity value data in unit time collected by the receiving device to obtain the uniformity change data of the slurry in the transportation process.
10. The method according to claim 9, wherein the calculating unit calculates the change rate of the transmitted light intensity or the scattered light intensity by continuously differentiating the unit light intensity data with the unit time data, and the change data of the uniformity of the slurry during the transportation is obtained according to the change rate of the transmitted light intensity or the scattered light intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110567386.4A CN113252612A (en) | 2021-05-24 | 2021-05-24 | Slurry uniformity detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110567386.4A CN113252612A (en) | 2021-05-24 | 2021-05-24 | Slurry uniformity detection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113252612A true CN113252612A (en) | 2021-08-13 |
Family
ID=77184049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110567386.4A Pending CN113252612A (en) | 2021-05-24 | 2021-05-24 | Slurry uniformity detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113252612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117929633A (en) * | 2023-12-20 | 2024-04-26 | 纳琳威纳米科技南通有限公司 | On-line detection method and system for uniformity of color paste for photoresist |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5331177A (en) * | 1993-04-26 | 1994-07-19 | Honeywell Inc. | Turbidity sensor with analog to digital conversion capability |
| CN1898551A (en) * | 2004-01-27 | 2007-01-17 | 德商华格纳警报及安全系统有限公司 | Method for evaluating a scattered light signal and a scattered light detector for realizing the method |
| CN104833657A (en) * | 2015-01-28 | 2015-08-12 | 水利部交通运输部国家能源局南京水利科学研究院 | Laser wireless sand meter having side-direction compensation |
| CN105300929A (en) * | 2015-11-02 | 2016-02-03 | 深圳市智水小荷技术有限公司 | Turbidity measurement method and device |
| CN110411978A (en) * | 2019-07-26 | 2019-11-05 | 中国农业大学 | A kind of material uniformity detection equipment and detection method |
| CN217059924U (en) * | 2021-05-24 | 2022-07-26 | 中国农业大学 | Slurry uniformity testing device |
-
2021
- 2021-05-24 CN CN202110567386.4A patent/CN113252612A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5331177A (en) * | 1993-04-26 | 1994-07-19 | Honeywell Inc. | Turbidity sensor with analog to digital conversion capability |
| CN1898551A (en) * | 2004-01-27 | 2007-01-17 | 德商华格纳警报及安全系统有限公司 | Method for evaluating a scattered light signal and a scattered light detector for realizing the method |
| CN104833657A (en) * | 2015-01-28 | 2015-08-12 | 水利部交通运输部国家能源局南京水利科学研究院 | Laser wireless sand meter having side-direction compensation |
| CN105300929A (en) * | 2015-11-02 | 2016-02-03 | 深圳市智水小荷技术有限公司 | Turbidity measurement method and device |
| CN110411978A (en) * | 2019-07-26 | 2019-11-05 | 中国农业大学 | A kind of material uniformity detection equipment and detection method |
| CN217059924U (en) * | 2021-05-24 | 2022-07-26 | 中国农业大学 | Slurry uniformity testing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117929633A (en) * | 2023-12-20 | 2024-04-26 | 纳琳威纳米科技南通有限公司 | On-line detection method and system for uniformity of color paste for photoresist |
| CN117929633B (en) * | 2023-12-20 | 2024-08-23 | 纳琳威纳米科技南通有限公司 | On-line detection method and system for uniformity of color paste for photoresist |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220074864A1 (en) | System and method to detection of particles in liquid or in air | |
| CN100439899C (en) | Method and device for detecting individual particles of a flowable sample | |
| CN107589084B (en) | Off-axis integral cavity absorption spectrum gas detection device based on self-convergence lens | |
| CN103837520B (en) | Optic travelling wave cavity enhanced laser raman gas concentration detection device | |
| CN112504922A (en) | Online measurement system and method for particle size distribution of atmospheric particulates | |
| CN108145606A (en) | Polishing fluid bulky grain real time on-line monitoring device in a kind of polishing process | |
| CN105181645A (en) | Screw-type multi-optical-path device for measuring gas concentration | |
| Zhu et al. | Development of a new method for turbidity measurement using two NIR digital cameras | |
| CN204556499U (en) | The multi-channel high-speed data acquisition and processing system of tuning diode absorption spectrum | |
| CN101122555A (en) | High concentration super fine granule measuring device and method based on backward photon related spectrum | |
| CN113252612A (en) | Slurry uniformity detection device and method | |
| CN111650100A (en) | A particle size measuring device based on Mie's scattering theory | |
| CN107101917A (en) | A kind of grain graininess and concentration light scattering measurements | |
| CN106644942A (en) | Photoacoustic absorption cell and online measuring device for multiple optical parameters of atmospheric particulate matters | |
| CN217059924U (en) | Slurry uniformity testing device | |
| CN209027957U (en) | Dual wavelength multi-angle transmission air particle measurement device | |
| EP0180140A2 (en) | Method for analyzing impurities in liquid and apparatus therefor | |
| CN105784618B (en) | Solution liquid film parameter measuring apparatus and method on a kind of non-transmissive surface of solids | |
| WO2012060809A1 (en) | Nanoparticle detector | |
| CN102494975A (en) | Single beam cross-correlation high concentration nanoparticle measuring apparatus and method thereof | |
| CN104007054B (en) | Online detection device and method for thallus concentration in biological fermentation process | |
| Zhang et al. | PPIM: A point-by-point interpolation method for breakpoint connection used for load detection of belt conveyor | |
| Shinde et al. | Investigation of static structure factor in dense suspensions by use of multiply scattered light | |
| CN114323507A (en) | Penicillin bottle sealing integrity measuring device and method | |
| CN108872141A (en) | A kind of rice leaf moisture content Fast nondestructive evaluation circuit, device and method based on near-infrared spectrum analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |