CN202362046U - Measuring probe of resistance-type water level sensor - Google Patents
Measuring probe of resistance-type water level sensor Download PDFInfo
- Publication number
- CN202362046U CN202362046U CN2011205170335U CN201120517033U CN202362046U CN 202362046 U CN202362046 U CN 202362046U CN 2011205170335 U CN2011205170335 U CN 2011205170335U CN 201120517033 U CN201120517033 U CN 201120517033U CN 202362046 U CN202362046 U CN 202362046U
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- Prior art keywords
- electrode
- water level
- bending
- fixing plug
- connecting portion
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- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model provides a measuring probe of a resistance-type water level sensor. The measuring probe is mainly composed of an insulating circular tube, a straight electrode and a bent electrode, wherein fixing plugs are both arranged at the upper end and the lower end of the insulation circular tube; a water inlet hole communicated with an inner cavity of the insulating circuit tube is arranged on the lower fixing plug; an air exhaust hole is arranged on the upper fixing plug; the bottom ends of the straight electrode and the bent electrode are arranged in the insulating circular tube and are fixed on the lower fixing plug; the bending part of the bent electrode is arranged in the insulating circular tube; and the upper ends of the straight electrode and the bent electrode pass through the upper fixing plug and are respectively provided with an stretching end. The measuring probe is simple in structure and low in cost and can be used for continuous measurement of water level with cooperation of a measuring circuit.
Description
Technical field
The utility model belongs to the water level monitoring sensor field, especially relates to a kind of measuring sonde of resistance type water level sensor.
Background technology
At present; The level sensor kind is a lot of on the market; Useful ultrasound wave principle, capacitance principle, thermal resistance, tongue tube or the like; But because the design of the measuring sonde of conventional level sensor is unreasonable, cause on the market most of sensors all can not continuous coverage, and it be very big with the variation drift of water quality to record height value.
The utility model content
The purpose of the utility model is to be the deficiency that solves the problems of the technologies described above, and a kind of measuring sonde of resistance type water level sensor is provided, and measuring sonde is simple in structure, and is with low cost, cooperates test circuit can realize the continuous coverage of water level.
The utility model is the deficiency that solves the problems of the technologies described above; The technical scheme that is adopted is: a kind of measuring sonde of resistance type water level sensor; Mainly be made up of insulation pipe, straight electrode and bending electrode, the two ends up and down of insulation pipe are equipped with fixing plug, the fixing down inlet opening that is communicated with insulation pipe inner chamber that is provided with beyond the Great Wall; At the last fixing vent port that is provided with beyond the Great Wall; The bottom of straight electrode and bending electrode is arranged in the insulation pipe and is fixed on down that fixing the bending part of bending electrode is arranged in the pipe that insulate beyond the Great Wall, and the upper end of straight electrode and bending electrode passes fixedly that plug has external part respectively.
Described bending electrode is made up of the bending part and the following connecting portion of last connecting portion, level, and last connecting portion is connected with the bending part two ends respectively with following connecting portion, and bending part is 90 ° with the angle of the junction of following connecting portion.
The beneficial effect of the utility model is: this measuring sonde is simple in structure, and is with low cost.Combined the resistance characteristic of popping one's head in cleverly with its cooperation test circuit, made the observed quantity and the height of water level of circuit picked-up be once linear relationship, thereby satisfy the continuous equal precision measurement of water level.When water level touched the extreme position of sensor at every turn, the inside of sensor can once revised and be stored in to the sensing data processing unit to the coefficient of once linear relationship formula, guaranteed that the slow variation of water resistance rate can not record the drift of height together.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of bending electrode in the utility model.
Reference numeral: 1, insulation pipe, 2, straight electrode, 3, the bending electrode, 301, go up connecting portion, 302, bending part, 303, connecting portion down, 4, fixing plug down, 401, the inlet opening, 5, go up fixing plug, 501, vent port.
Embodiment
As shown in the figure; A kind of measuring sonde of resistance type water level sensor; Mainly constitute by insulation pipe 1, straight electrode 2 and bending electrode 3; The two ends up and down of insulation pipe 1 are equipped with fixing plug, and down fixing plug 4 is provided with the inlet opening 401 that is communicated with insulation pipe inner chamber, on last fixing plug 5, are provided with the vent port 501 with the pipe intracavity inter-connection that insulate; The bottom of straight electrode 2 and bending electrode 3 is arranged in the insulation pipe and is fixed on down on the fixing plug 4; The bending part 302 of bending electrode 3 is arranged in the insulation pipe 1, and the upper end of straight electrode 2 and bending electrode 3 is passed fixing plug 5 and had external part respectively, is used to test out the height change of water level through two external parts are connected with test circuit.
Described bending electrode 3 is made up of the bending part 302 and the following connecting portion 303 of last connecting portion 301, level, and last connecting portion 301 is connected with bending part 302 two ends respectively with following connecting portion 303, and bending part 302 is 90 ° with the angle of the junction of following connecting portion 303.
Measuring principle is following: sonde configuration comprises fixing down plug, insulation pipe, goes up fixing plug, bending electrode and straight electrode; Fix the two electrodes fixed effect of having filled in up and down; Wherein the bending electrode is allowing water level highest point bending (frustrating the chamfering except that bending part), the bending part parallel axes and the water surface at sensor.When water level reaches maximum position and contacts with bending electrode bending part, cause once becoming more of two resistance between electrode, measuring voltage adopts alternating current, the polarization of anti-sealing.When water level has just overflowed following stopple and two electrodes of UNICOM is minimum measurement point, and be R0 this moment between two resistance between electrode; For measuring maximum height, this moment, two resistance between electrode were Rt during water level rising H0 contact bending electrode curved boom.When water level whenever increased Δ h, the right cylinder water column two interelectrode resistance in the Δ h height were Rh, then have:
When adding a constant voltage U0 at this Resistance probe, the electric current I t of the Rt that flows through and the relational expression of water column are:
Rh, R0, U0 are not constant when the water quality short time does not change.So water colunm height H becomes once linear relationship with the electric current I t of the probe of flowing through.Only measure It and can obtain corresponding height of water level., water level all can cause the sudden change of resistance when just having overflowed following stopple or reached maximum position; Because the position height value at this place; And can once revise above-mentioned pass formula coefficient, and store, thereby avoided because the measuring height value drift that the slow variation of water quality or electrode causes.Need pop one's head in during use before use fully in the invasion water once, so that measuring junction obtains the coefficient of once linear relationship formula.The level measuring that this single-unit probe is applicable to that water level often changes and always fluctuates in minimum value and maximal value, as: solar water heater, the small-sized water tower of family etc.
Claims (2)
1. the measuring sonde of a resistance type water level sensor; It is characterized in that: mainly constitute by insulation pipe (1), straight electrode (2) and bending electrode (3); The two ends up and down of insulation pipe (1) are equipped with fixing plug; Fixing plug (4) is provided with the inlet opening (401) that is communicated with insulation pipe inner chamber down; On last fixing plug (5), be provided with vent port (501); The bottom of straight electrode (2) and bending electrode (3) is arranged in the insulation pipe and is fixed on down on the fixing plug (4), and the bending part (302) of bending electrode (3) is arranged in the insulation pipe (1), and the upper end of straight electrode (2) and bending electrode (3) is passed fixing plug (5) and had external part respectively.
2. the measuring sonde of a kind of resistance type water level sensor according to claim 1; It is characterized in that: described bending electrode (3) is made up of the bending part (302) and the following connecting portion (303) of last connecting portion (301), level; Last connecting portion (301) is connected with bending part (302) two ends respectively with following connecting portion (303), and bending part (302) is 90 ° with the angle of the junction of following connecting portion (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205170335U CN202362046U (en) | 2011-12-10 | 2011-12-10 | Measuring probe of resistance-type water level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205170335U CN202362046U (en) | 2011-12-10 | 2011-12-10 | Measuring probe of resistance-type water level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362046U true CN202362046U (en) | 2012-08-01 |
Family
ID=46573227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205170335U Expired - Fee Related CN202362046U (en) | 2011-12-10 | 2011-12-10 | Measuring probe of resistance-type water level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105054834A (en) * | 2015-08-26 | 2015-11-18 | 成都陶玛斯卫浴有限责任公司 | Bathtub |
-
2011
- 2011-12-10 CN CN2011205170335U patent/CN202362046U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105054834A (en) * | 2015-08-26 | 2015-11-18 | 成都陶玛斯卫浴有限责任公司 | Bathtub |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121210 |