CN2033499U - Water level monitor - Google Patents
Water level monitor Download PDFInfo
- Publication number
- CN2033499U CN2033499U CN 88206939 CN88206939U CN2033499U CN 2033499 U CN2033499 U CN 2033499U CN 88206939 CN88206939 CN 88206939 CN 88206939 U CN88206939 U CN 88206939U CN 2033499 U CN2033499 U CN 2033499U
- Authority
- CN
- China
- Prior art keywords
- water
- water level
- sensor
- measuring
- instrument
- 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 - Lifetime
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Abstract
The utility model discloses a water level detector which is suitable for measuring the water level in a deep well, a water tower and a water reservoir. The water level detector is composed of a measuring element (a compressive resistance sensor), a secondary instrument and a regulated power supply. The water level detector has the advantages of low cost and convenience for carrying, and the accuracy of water level detector can satisfy the demand of the user.
Description
The utility model is a water-level detecting instrument, is applicable to the water stage measurement of deep-well, river, lake, reservoir, water tower.
At present, in the prior art, how to measure,, the water pump sky usually occurs and take out phenomenon because of the accurate rate variance of instrument with multimeter.And the water-level detecting instrument that Xi'an Electro-mechanical Information Inst. produces, because volume is big, price is expensive, high precision is not portable, is not suitable for the mobile water level of measuring and uses.
The purpose of this utility model provide one simpler, and cost is lower compared with prior art, and is to cause that by the height of water variation in water pressure becomes change in electric output, is directly changed into the water-level detecting instrument that shows into number immediately.
The technical solution of the utility model is to realize like this, the water-level detecting instrument is made up of measuring sensor, secondary instrument, stabilized voltage supply, its measuring principle is that sensor is placed the underwater survey point, convert hydraulic signal to voltage signal, this voltage signal just corresponding water level numerical value, deliver to functional switch through the transmission electrical cables, enter 7106 moulds/transformation of variables circuit again and become digital signal, directly drive liquid crystal display device and demonstrate water level numerical value.It is characterized in that measuring sensor adopts solid-state piezoresistance sensor, it is to be made of the integrated Wheatstone bridge of silicon single crystal diaphragm, totally four terminals, two power supply terminals, two signal output terminals.Required power supply is 9 volts of constant voltage sources, and being added in the pressure on the silicon single crystal diaphragm and the power of output signal has one-to-one relationship.When sensor not before the entry, also may there be voltage signal in two signal terminals, and promptly " zero-bit output " its value is not more than 10 millivolts.And adopt voltage divider principle to design interface circuit, calculated the numerical value of each element.
The secondary instrument of water-level detecting instrument adopts be 7106 integrated packages (LSI) it be mould one number (A/D) change-over circuits.Can become digital signal to the millivolt magnitude voltage signals by it, directly drive LCDs, demonstrate voltage value, also have a series connection stabilized voltage supply.Secondary instrument, stabilized voltage supply are combined into a pocket structure (volume is 110 * 170 50mm rectangle boxes) and solid-state piezoresistance sensor, and (cylindrical stainless steel structure φ 20 * 150mm) links together with the water proof type radio-frequency cable and constitutes the water-level detecting instrument.
Solution of the present utility model can further describe with following accompanying drawing:
Fig. 1 is main line figure of the present utility model (being the secondary instrument wiring diagram)
Fig. 2 is the utility model piezoresistance sensor and conversion adaptation wiring diagram
Fig. 3 is the utility model tandem stabilized voltage supply wiring diagram
Fig. 1, Fig. 2, Fig. 3 are most preferred embodiments of the present utility model
Adopting 7106 integrated circuit among Fig. 1, the main line figure is voltage transitions that digital signal drives liquid crystal board display digit, IC
1Be phase inverter, be used to drive radix point.
Fig. 2, by R
11, W
4, R
12, R
18The zeroing circuit of forming piezoresistance sensor (CYGO4), R
14, W
5, R
15Form adaptation (dividing potential drop box), in order to adjust the signal power.
Fig. 3, be tandem stabilized voltage supply wiring diagram, 220 volts of AC power become 10 volts of alternating currents of low pressure through B, by D
1～D
4Obtain 15 volts of direct currents behind the bridge rectifier, R
8, DW provides reference voltage for F006, R
9, R
10For F006 provides sampled voltage, after relatively amplifying, amplify promotion BG by F006
1, BG
2Remove to adjust output voltage and guarantee to have 9V constant voltage output voltage supply resistance sensor (CYG04) operate as normal.
The utility model has the advantages that: reading is directly perceived, and certainty of measurement can satisfy actual needs; Volume is little, weight is light, be easy to carry; Simple in structure, use easy and simple to handle; Cost is low.
Claims (1)
1, a kind of water-level detecting instrument is specially adapted to the level measuring of deep-well, river, lake, reservoir, water tower, and it is made up of measuring sensor, secondary instrument, stabilized voltage supply, it is characterized in that:
A, measuring sensor adopt the piezoresistance sensor CYGO4 of the integrated Wheatstone bridge of silicon single crystal diaphragm, by R
11, W
4, R
12, R
13The zeroing circuit of forming piezoresistance sensor is by R
14, W
5, R
15, the adaptation (dividing potential drop box) formed;
It is voltage transitions that digital signal drives liquid crystal board display digit, IC that b, secondary instrument adopt 7106 integrated circuit
1For phase inverter is used to drive radix point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88206939 CN2033499U (en) | 1988-06-01 | 1988-06-01 | Water level monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88206939 CN2033499U (en) | 1988-06-01 | 1988-06-01 | Water level monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2033499U true CN2033499U (en) | 1989-03-01 |
Family
ID=4841043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88206939 Expired - Lifetime CN2033499U (en) | 1988-06-01 | 1988-06-01 | Water level monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2033499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128989A (en) * | 2022-08-30 | 2022-09-30 | 深圳时代能创能源科技有限公司 | Intelligent water level control system of miniature water tower |
-
1988
- 1988-06-01 CN CN 88206939 patent/CN2033499U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128989A (en) * | 2022-08-30 | 2022-09-30 | 深圳时代能创能源科技有限公司 | Intelligent water level control system of miniature water tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |