CN2345965Y - Capacitive level meter - Google Patents
Capacitive level meter Download PDFInfo
- Publication number
- CN2345965Y CN2345965Y CN 98238802 CN98238802U CN2345965Y CN 2345965 Y CN2345965 Y CN 2345965Y CN 98238802 CN98238802 CN 98238802 CN 98238802 U CN98238802 U CN 98238802U CN 2345965 Y CN2345965 Y CN 2345965Y
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- CN
- China
- Prior art keywords
- electrode
- circuit part
- contrast
- meter
- contrast electrode
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- 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.)
- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a capacitive level meter which has the advantages that verification does not need to be carried out before the utility model is used and the variation of a medium can not affect the accuracy of an output indication of a meter. The utility model is composed of a meter display part, a circuit part and an electrode part, wherein, the electrode part is composed of a measuring electrode and a reference electrode; the measuring electrode and the reference electrode are vertically arranged; the measuring electrode is arranged above and the reference electrode is arranged below; insulating material coats the two electrodes; the measuring electrode and the reference electrode are respectively connected with the circuit part and then the meter indication part by wires or the reference electrode is horizontally arranged at the bottom of a container and is connected with the circuit part and then the meter indication part by wires. The measuring electrode is vertically arranged and is connected with the circuit part and then the meter indication part by wires.
Description
The utility model relates to the capacitance level meter technical field.
Measure material level, i.e. liquid state in the measuring vessel, the vertical height of powder material.Existing condenser type level position transducer, have advantages such as no movable member, long service life, measurement range are wide, handling ease, but, before measurement, use preceding verification to instrument according to the measured medium of the instrument correspondence of dispatching from the factory according to the measuring method of present all producers, verification before using, be about to fill measured medium in the container, adjust instrument, make it reach the maximum capacitor value, linear according to electric capacity and container height, carry out level gauging; If medium changes, error will appear in the indicating value of instrument, and actual medium is difficult to unanimity, therefore basically, this is the measuring method of the very big defective of a kind of existence, makes in this way and measures, always can there be error, have influenced actual production to a great extent.
The purpose of this utility model provides a kind ofly need not use preceding verification, and medium changes can not influence the capacitance level meter of instrument output indicating value accuracy.
The technical solution of the utility model is:
The utility model capacitance level meter is provided with contrast electrode, adopts the method for contrast to measure.
Technical scheme one:
This novel capacitance-type level-sensing device, be grouped into by instrument indicating section, circuit part, electrode part, the electrode part is made up of potential electrode, contrast electrode, potential electrode and contrast electrode are arranged vertically up and down, potential electrode is last, contrast electrode is following, and two electrodes are outward insulating material, and potential electrode links to each other with circuit part and then with the instrument indicating section by lead respectively with contrast electrode.This technical scheme is that potential electrode and contrast electrode are put together, and two electrodes are outward insulating material.
Technical scheme two:
This novel capacitance-type level-sensing device, be grouped into by instrument indicating section, circuit part, electrode part, the electrode part is made up of potential electrode, contrast electrode, contrast electrode is horizontally set on the bottom of container, link to each other with circuit part and then with the instrument indicating section by lead, potential electrode vertically is provided with, and links to each other with circuit part and then with the instrument indicating section by lead.This technical scheme is that potential electrode and contrast electrode branch are arranged.
The length of contrast electrode is very little, about 8mm, in general, the material level of the material in the container can both surpass the length of contrast electrode, instrument capacitance with the contrast electrode correspondence is directly proportional with the length of contrast electrode, with the capacitance of potential electrode capacitance divided by contrast electrode, multiply by the length of contrast electrode again, promptly get the material level of measured medium.Formula is:
The material level of the length=measured medium of the capacitance * contrast electrode of the capacitance/contrast electrode of potential electrode
Advantage of the present utility model and good effect are:
Contrast electrode is set, adopt the method for contrast to measure, pour material in the container into one time, promptly carry out one-shot measurement, pour material again into by contrast electrode, measure again, the contrast electrode capacitance of material each time can be measured exactly, by with the length of the contrast electrode known, the potential electrode capacitance that records, the material level of measured medium can be calculated exactly according to formula again, instrument does not need to use preceding verification again, and measured medium changes also can not influence the accuracy of measurement.
Below in conjunction with drawings and Examples the utility model is done further detailed description:
Fig. 1 is the structural representation of this novel capacitance-type level-sensing device technical scheme one;
Fig. 2 is the structural representation of this novel capacitance-type level-sensing device technical scheme two.
Embodiment one:
This novel capacitance-type level-sensing device, form by instrument indicating section 1, circuit part 2, electrode part 3, electrode part 3 is made up of potential electrode 4, contrast electrode 5, potential electrode 4 and contrast electrode 5 are arranged vertically up and down, potential electrode 4 is last, contrast electrode 5 is following, and two electrodes are outward insulating material, and potential electrode 4 links to each other with circuit part 2 and then with instrument indicating section 1 by lead respectively with contrast electrode 5.This technical scheme is that potential electrode 4 and contrast electrode 5 are put together, and two electrodes are outward insulating material.
Embodiment two:
This novel capacitance-type level-sensing device, form by instrument indicating section 1, circuit part 2, electrode part 3, electrode part 3 is made up of potential electrode 4, contrast electrode 5, contrast electrode 5 is horizontally set on the bottom of container 6, link to each other with circuit part 2 and then with instrument indicating section 1 by lead, potential electrode 4 vertically is provided with, and links to each other with circuit part 2 and then with instrument indicating section 1 by lead.This technical scheme is that potential electrode 4 and contrast electrode were arranged in 5 minutes.
Can add secondary instrument again, the material level value is directly shown.
Claims (2)
1, a kind of capacitance level meter, form by instrument indicating section 1, circuit part 2, electrode part 3, it is characterized in that electrode part 3 is made up of potential electrode 4, contrast electrode 5, potential electrode 4 and contrast electrode 5 are arranged vertically up and down, potential electrode 4 is last, contrast electrode 5 is following, and two electrodes are outward insulating material, and potential electrode 4 links to each other with circuit part 2 and then with instrument indicating section 1 by lead respectively with contrast electrode 5.
2, a kind of capacitance level meter, form by instrument indicating section 1, circuit part 2, electrode part 3, it is characterized in that electrode part 3 is made up of potential electrode 4, contrast electrode 5, contrast electrode 5 is horizontally set on the bottom of container 6, link to each other with circuit part 2 and then with instrument indicating section 1 by lead, potential electrode 4 vertically is provided with, and links to each other with circuit part 2 and then with instrument indicating section 1 by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238802 CN2345965Y (en) | 1998-09-11 | 1998-09-11 | Capacitive level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238802 CN2345965Y (en) | 1998-09-11 | 1998-09-11 | Capacitive level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2345965Y true CN2345965Y (en) | 1999-10-27 |
Family
ID=33986307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238802 Expired - Fee Related CN2345965Y (en) | 1998-09-11 | 1998-09-11 | Capacitive level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2345965Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352565A (en) * | 2015-11-02 | 2016-02-24 | 智恒（厦门）微电子有限公司 | Differential-capacitor material level sensor |
| CN108332819A (en) * | 2018-02-27 | 2018-07-27 | 南京诺尔曼生物技术有限公司 | The method of liquid level in liquid storage detection structure, device and detection liquid storage bottle |
| CN109459112A (en) * | 2018-09-21 | 2019-03-12 | 浙江大学宁波理工学院 | The granulated fertilizer allowance detector of fertilizer distributor |
-
1998
- 1998-09-11 CN CN 98238802 patent/CN2345965Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352565A (en) * | 2015-11-02 | 2016-02-24 | 智恒（厦门）微电子有限公司 | Differential-capacitor material level sensor |
| CN105352565B (en) * | 2015-11-02 | 2024-05-07 | 智恒（厦门）微电子有限公司 | Differential capacitance level sensor |
| CN108332819A (en) * | 2018-02-27 | 2018-07-27 | 南京诺尔曼生物技术有限公司 | The method of liquid level in liquid storage detection structure, device and detection liquid storage bottle |
| CN109459112A (en) * | 2018-09-21 | 2019-03-12 | 浙江大学宁波理工学院 | The granulated fertilizer allowance detector of fertilizer distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |