CN201218744Y - Non-contact type water level transducer - Google Patents
Non-contact type water level transducer Download PDFInfo
- Publication number
- CN201218744Y CN201218744Y CNU200820017951XU CN200820017951U CN201218744Y CN 201218744 Y CN201218744 Y CN 201218744Y CN U200820017951X U CNU200820017951X U CN U200820017951XU CN 200820017951 U CN200820017951 U CN 200820017951U CN 201218744 Y CN201218744 Y CN 201218744Y
- Authority
- CN
- China
- Prior art keywords
- level sensor
- module
- measuring sonde
- multimetering
- described contactless
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 20
- 239000007788 liquid Substances 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000007667 floating Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000523 sample Substances 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to a non-contact water level sensor, belonging to the field of measurement application technology, which relates to the liquid level measurement technology, particularly to the water level measurement technology. A multi-metering module (4) is sealed in a hollow container (5) as a measuring probe floating along the water surface, the measuring probe is connected with a supporting pole in a rotating join way, along with the change of the liquid level, a free end of the measuring probe floats under the floating force, deflects and inclines using a junction point as a pivot. Orientation of the measuring module is changed, direction switches are turned on or off in turn, realizing liquid level indication. The measuring state is only relevant to the tilt angle of the direction switch and the deflection angle of the measuring probe, and is irrelevant to the position of the measuring module. The utility model is mainly suitable for the measurement of the water level, also suitable for the measurement of other liquid level, and also suitable for the field of height indication and angle indication. The utility model is characterized by simple circuits, reliability, simple producing technology, low product cost and maintenance cost, long service life and the like.
Description
One, technical field
The utility model belongs to the measurement applied technical field, relates to the level gauging technology, particularly the level measuring technology.
Two, background technology
Liquid level control is a kind of comparatively ripe general controls technology, and is ubiquitous in modern industry production and life.
The level sensor that present domestic solar water heater manufacturer adopts mostly is touch sensor, is about to water and pops one's head in 1 with electrode as level measuring as conducting medium.When measuring sonde contacted or is immersed in the water, circuit turn-on, pilot lamp lighted or the start-up control circuit, and structural representation is in accompanying drawing 1.Such sensor is because the electrode used therein material directly contacts with water, and particularly in water temperature during near 100 ℃, incrustation scale can be deposited on the potential electrode material surface, thereby reduce the conductive capability of electrode, cause unexpected open circuit, cause the level sensor cisco unity malfunction, the water level indication is unusual.
ZL 200720027694 has introduced a kind of non-contacting sensor, and direction switch is sealed in the measuring sonde of bubbling through the water column 1 (also claiming float) that forms in the hollow body, and a plurality of parallel connections form, and structural representation is in accompanying drawing 2.Measuring sonde 1 hangs on the liquid level top by on line 2, and circuit is open-circuit condition under "on" position, and when liquid level rose, measuring sonde was toppled under buoyancy, direction switch conducting when being bordering on horizontality, thereby realizes the indication to liquid level position.This method can solve the problem that incrusted deposit causes, but because this sensor needs long period of soaking in water, seal request is higher.
Three, summary of the invention
The utility model is intended to overcome the deficiency of existing sensor at seal aspect, provides a kind of convenience, practicality, the non-contacting sensor of reliable operation.
The purpose of this utility model is to realize like this, the multimetering module sealing that to form by the direction switch assembly in hollow body as the measuring sonde that can float with the water surface, measuring sonde is connected with support bar in the rotation-coupled mode, measuring sonde is sagging naturally, along with liquid level change, measuring sonde is the fulcrum yaw tilt with the tie-point under buoyancy, the measurement module orientation that is sealed in the container changes, laying angle according to direction switch, direction switch conducting or open circuit successively, by the indication mechanism of external coupling, realize the liquid level indication.
The contactless level sensor that the utility model relates to is made up of multimetering module 4, hollow body 5, support bar 6 and coupling mechanism 7, and structural representation is in accompanying drawing 3.Multimetering module 4 is sealed in and forms measuring sonde 1 in the hollow body 5, measuring sonde 1 is connected with rotating manner by bindiny mechanism 7 and support bar 6, support bar 6 is principle with the bind mode of measuring sonde 1 to guarantee that measuring sonde 1 moves in same plane, all direction switch K coplines in the multimetering module 4, and the plane parallel that constitutes with measuring sonde 1 motion; Signal wire 2 links to each other with external indicator 3.
Along with liquid level change, measuring sonde 1 is the fulcrum yaw tilt with the point of contact, and the orientation that is sealed in the measurement module 4 in the hollow body 5 is changed, laying angle according to direction switch, direction switch conducting or open circuit successively by the indication mechanism of external coupling, realizes the liquid level indication.
The used multimetering module of the contactless level sensor that the utility model relates to 4 is for being linked together in the serial or parallel connection mode to the direction switch assembly that K switch and build-out resistor R form by the n prescription, the metering circuit of being exported by one group of signal wire (circuit theory is shown in accompanying drawing 4,5) of formation; The certain angle that staggers successively between all direction switch K coplines, all directions K switch is laid in and obtains the multimetering module on the circuit board 8, and a kind of laying structure of direction switch K is illustrated in shown in the accompanying drawing 6.
The contactless level sensor that the utility model relates to, used hollow body 5 is the elongated hollow container.
The contactless level sensor that the utility model relates to, the packing forms of used measuring sonde 1 can be that any multimetering module 4 and water of making is isolated, global density is less than 1 packing forms, and packaged type can be any feasible encapsulation scheme that adopts tackifier, rubber, plastic or other material that measuring sonde 1 is bubbled through the water column.
The level sensor that the utility model relates to is the multimetering device, and a plurality of measurement points can be set, thereby realizes the multiple spot of liquid level is monitored that under the condition that satisfies the insulation-encapsulated requirement, measurement point can be countless many.Measure dot number is determined by the direction switch component groups number of measurement module, generally is no more than 15, in preferred 10, is recommended as 3～7 measurement points, preferred 3～5 measurement points.
It is simple that the contactless level sensor that the utility model relates to has a circuit, advantages such as good reliability, and the measurement state is only relevant with the deflection angle of the angle of inclination of direction switch and measuring sonde, with the residing location independent of measuring sonde.
The contactless level sensor production technology that the utility model relates to is simple, and cost of products and maintenance cost are low, and indication is reliable, long service life.
The contactless level sensor that the utility model relates to mainly is applicable to level measuring, and the orientation by module changes the different position of reflection, also applicable to other level gaugings, also applicable to highly indicating and fields such as angle indication.
Four, description of drawings
1 one kinds of contact level sensors of accompanying drawing structural representation
2 one kinds of contactless level sensor structural representations of accompanying drawing
The structural representation of the contactless level sensor that accompanying drawing 3 the present invention relates to
The series circuit schematic diagram of the contactless level sensor that accompanying drawing 4 the present invention relates to
The parallel circuit schematic diagram of the contactless level sensor that accompanying drawing 5 the present invention relates to
A kind of structural representation of accompanying drawing 6 measurement modules
7 one kinds of syndeton synoptic diagram of accompanying drawing
The contactless level sensor fundamental diagram of 8 one kind of four measurement point of accompanying drawing
Wherein: the 1-measuring sonde; The 2-signal wire; The 3-indication mechanism; The 4-measurement module; The 5-container; The 6-support bar; 7-bindiny mechanism; The 8-circuit board; The 9-water tank
Five, embodiment
Below in conjunction with embodiment the technical scheme that the utility model proposes is further specified, but not as the restriction of the technical scheme that utility model is proposed.The laying mode of direction switch all constitutes a part of the present invention in the multimetering module of any the object of the invention that can realize; Any measuring sonde bind mode sagging naturally in free state and can free deflection of can realizing all constitutes a part of the present invention.
Be that example further specifies the technical scheme that the utility model proposes with a kind of four measurement point non-contacting sensors below.
Build-out resistor R1, R2, R3, the R4 that adopts four SW-300 ball switch K1, K2, K3, K4 and four 10k Ω is connected by the circuit of accompanying drawing 4 and draws signal wire; Four SW-300 ball switch coplines and parallel with circuit board according to counterclockwise becoming 10 °, 20 °, 30 °, 40 ° to be arranged in order with level, constitute four point measurement modules 4 from bottom to top on the circuit board of stuck-at-0mm*100mm.
Adopt the polypropylene tube of long 300mm, diameter 16mm that an end closure other end has the inner support screw thread as hollow body 5, four point measurement modules 4 are fixed in the hollow body 5 by the inner support screw, form measuring sonde 1; The polypropylene tube that adopts diameter 16mm, long 100mm is as support bar 6; Adopt the nylon hinge of structure shown in the accompanying drawing 7 that measuring sonde 1 reliably is connected with support bar 6, the plane parallel that circuit board 8 and measuring sonde 1 motion form.
The contactless level sensor that present embodiment provides, principle of work as shown in Figure 8, sensor in general manner is fixed on the water tank 9 by support bar 6, measuring sonde 1 is connected to form the indication loop with water level-indication system 3, the measuring sonde 1 near normal state that dangles naturally when anhydrous, water level-indication system 3 shows zero levels (shown in accompanying drawing 8a).When the water tank water filling,, because slowly floating, buoyancy deflects with water level rising measuring sonde 4 free ends, and this place's water level (shown in accompanying drawing 8b) is indicated in conducting when K1 is in horizontality; Water level continues to rise, and measuring sonde 4 free ends are because buoyancy continues come-up, and deflection angle increases, and this place's water level (shown in accompanying drawing 8c) is indicated in conducting when K2 is in horizontality; Along with water level continue to rise, measuring sonde 4 free ends are because buoyancy continues come-up, and deflection angle increases, and corresponding water level (shown in accompanying drawing 8d, 8e) is indicated in K3, K4 be up to the standard successively state and conducting.When discharging water, along with decline of water table, thereby K4, K3, K2, K1 open circuit successively and realize indication to liquid level position.
Claims (10)
1 one kinds of contactless level sensors, by multimetering module (4), hollow body (5), support bar (6) and coupling mechanism (7) are formed, it is characterized in that: multimetering module (4) is sealed in and forms measuring sonde (1) in the hollow body (5), measuring sonde (1) is connected with rotating manner with support bar (6) by bindiny mechanism (7), support bar (6) is principle with the bind mode of measuring sonde (1) to guarantee that measuring sonde (1) moves in same plane, all direction switch K coplines in the multimetering module (4), and the plane parallel that constitutes with measuring sonde (1) motion; Signal wire (2) output indicator signal.
The described contactless level sensor of 2 claims 1 is characterized in that the metering circuit of being exported by one group of signal wire that used multimetering module (4) links together with parallel way for the direction switch assembly is made up of to K switch and build-out resistor R the n prescription; The certain angle that staggers successively between all directions K switch is laid on the circuit board (8).
The described contactless level sensor of 3 claims 1 is characterized in that the metering circuit of being exported by one group of signal wire that used multimetering module (4) is joined together to form with series system for the direction switch assembly is made up of to K switch and build-out resistor R the n prescription; The certain angle that staggers successively between all directions K switch is laid on the circuit board (8).
The described contactless level sensor of 4 claims 1 is characterized in that used hollow body (5) is the elongated hollow container.
The described contactless level sensor of 5 claims 4 is characterized in that the polypropylene tube of used hollow body (5) for the long 300mm of inner support screw thread, diameter 16mm.
The described contactless level sensor of 6 claims 1, the packing forms that it is characterized in that used measuring sonde (1) can be that any multimetering module (4) and water of making is isolated, and global density is less than 1 packing forms.
The described contactless level sensor of 7 claims 1 is characterized in that measure dot number is no more than 15.
The described contactless level sensor of 8 claims 7 is characterized in that measure dot number is between 2～10.
The described contactless level sensor of 9 claims 8 is characterized in that measure dot number is between 3～7.
The described contactless level sensor of 10 claims 9 is characterized in that measure dot number is between 3～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820017951XU CN201218744Y (en) | 2008-02-27 | 2008-02-27 | Non-contact type water level transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820017951XU CN201218744Y (en) | 2008-02-27 | 2008-02-27 | Non-contact type water level transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218744Y true CN201218744Y (en) | 2009-04-08 |
Family
ID=40541579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820017951XU Expired - Fee Related CN201218744Y (en) | 2008-02-27 | 2008-02-27 | Non-contact type water level transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218744Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949725A (en) * | 2010-10-09 | 2011-01-19 | 德州赛佳新能源科技有限公司 | New liquid angular position sensor and water level measuring method |
| CN109564718A (en) * | 2016-06-29 | 2019-04-02 | 安泰克安全公司 | Flood detector and method |
| CN111174872A (en) * | 2018-11-13 | 2020-05-19 | Vega格里沙贝两合公司 | Sensor device and sensor device holder |
| US20210069455A1 (en) * | 2019-09-11 | 2021-03-11 | GE Precision Healthcare LLC | Systems and method for an optical anesthetic agent level sensor |
-
2008
- 2008-02-27 CN CNU200820017951XU patent/CN201218744Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949725A (en) * | 2010-10-09 | 2011-01-19 | 德州赛佳新能源科技有限公司 | New liquid angular position sensor and water level measuring method |
| CN109564718A (en) * | 2016-06-29 | 2019-04-02 | 安泰克安全公司 | Flood detector and method |
| CN111174872A (en) * | 2018-11-13 | 2020-05-19 | Vega格里沙贝两合公司 | Sensor device and sensor device holder |
| US20210069455A1 (en) * | 2019-09-11 | 2021-03-11 | GE Precision Healthcare LLC | Systems and method for an optical anesthetic agent level sensor |
| US11707594B2 (en) * | 2019-09-11 | 2023-07-25 | GE Precision Healthcare LLC | Systems and method for an optical anesthetic agent level sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20150227 |
|
| EXPY | Termination of patent right or utility model |