CN202886402U - Rock stratum water flow measuring instrument - Google Patents
Rock stratum water flow measuring instrument Download PDFInfo
- Publication number
- CN202886402U CN202886402U CN 201220561883 CN201220561883U CN202886402U CN 202886402 U CN202886402 U CN 202886402U CN 201220561883 CN201220561883 CN 201220561883 CN 201220561883 U CN201220561883 U CN 201220561883U CN 202886402 U CN202886402 U CN 202886402U
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- resistance strain
- strain gage
- strain gauge
- circuit
- resistance
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- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a rock stratum water flow measuring instrument. Each surface of a cubic measuring body is provided with a resistance strain gauge, the resistance strain gauge A and the resistance strain gauge B are used for measuring the pressure value of up-and-down water, the resistance strain gauge C and the resistance strain gauge D are used for measuring the pressure value of water at the left and right sides, and the resistance strain gauge E and the resistance strain gauge F are used for measuring the pressure value of water of the forward-backward direction; and the resistance change generated by the resistance strain gauges is converted into voltage for output by a bridge circuit A, a bridge circuit B and a bridge circuit C based on the resistance change rate deltaR/R of the resistance strain gauges, and then is amplified by an amplifying circuit A, an amplifying circuit B and an amplifying circuit C and is subsequently subjected to analog-to-digital conversion by an A/D (analog-to-digital) conversion circuit A, an A/D conversion circuit B and an A/D conversion circuit C, and the signals are sent to a single-chip microprocessor for analysis processing of the shocked and strained situations of the strain gauges, and the measurement values are uploaded to an automatic control system through a communication mode to finally calculate the parameters of water flow such as the direction, flow velocity and the like.
Description
Technical field
The utility model relates to a kind of surveying instrument, is specifically related to a kind of flow measurement instrument.
Background technology
In mine, bridge, constructing tunnel process, often can run at present in the rock stratum underground water phenomenon of gushing out; to producing and construction brings very big harm, take corresponding counter-measure that comparatively strong Data support is provided in the work progress if can monitor to make to parameters such as the direction of current in the stratum, flow velocitys.And actual rock stratum streamflow regime is complicated, and narrow space is to having relatively high expectations of measuring equipment.And existing equipment can't measure effectively to data such as the direction of current and flow velocitys, brings very large inconvenience to Practical Project.
Summary of the invention
The utility model provides a kind of and can measure Groundwater flow path direction and the isoparametric rock stratum of flow velocity flow measurement instrument in the rock stratum in order to overcome the deficiency of above technology.
The technical scheme that its technical matters that overcomes the utility model adopts is:
This rock stratum flow measurement instrument, the measurement body that comprises into the square bodily form, be separately installed with resistance strain gage A on six outside surfaces of described measurement body, resistance strain gage B, resistance strain gage C, resistance strain gage D, resistance strain gage E and resistance strain gage F, described resistance strain gage A and resistance strain gage B are connected in A/D change-over circuit A through bridge diagram A and amplifying circuit A, described resistance strain gage C and resistance strain gage D are connected in A/D change-over circuit B through bridge diagram B and amplifying circuit B, described resistance strain gage E and resistance strain gage F are connected in A/D change-over circuit C through bridge diagram C and amplifying circuit C, described A/D change-over circuit A, A/D change-over circuit B and A/D change-over circuit C are connected to single-chip microcomputer, and described single-chip microcomputer is connected in automatic control system.
For the convenient cable of measuring the resistance strain gage on the body that will be installed in is drawn out to the external side of measurement from measuring body inside, the upper surface of above-mentioned measurement body is provided with the through wires hole that is connected in the cable of resistance strain gage for interspersed.
The beneficial effects of the utility model are: each surface of measurement body of the square bodily form is equipped with a resistance strain gage, resistance strain gage A and resistance strain gage B are used for measuring the up and down force value of current, described resistance strain gage C and resistance strain gage D can measure the water flow pressure value of the left and right sides, resistance strain gage E and resistance strain gage F can measure the water flow pressure value of fore-and-aft direction, the change in resistance that resistance strain gage produces is respectively by bridge diagram A, bridge diagram B and bridge diagram C convert the resistance change rate Δ R/R of resistance strain gage to Voltage-output, then offer respectively amplifying circuit A, amplifying circuit B and amplifying circuit C pass through A/D change-over circuit A after amplifying again, A/D change-over circuit B and A/D change-over circuit C carry out after the analog to digital conversion signal being sent to single-chip microcomputer, single chip circuit carries out analyzing and processing to the foil gauge stressing conditions that is hit, the pressure measuring value of each face is uploaded to automatic control system by communication modes, set up corresponding phasor coordinate through software analysis its measured value, the computing by computing machine can draw the parameters such as the direction of current and flow velocity.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model;
Fig. 3 is control system block diagram of the present utility model;
Among the figure, 1. measure body 2. resistance strain gage A 3. resistance strain gage B 4. resistance strain gage C 5. resistance strain gage D 6. resistance strain gage E 7. resistance strain gage F 8. through wires holes.
Embodiment
Be described further below in conjunction with accompanying drawing 1,2 pairs of the utility model of accompanying drawing.
This rock stratum flow measurement instrument, the measurement body 1 that comprises into the square bodily form, be separately installed with resistance strain gage A 2 on 1 six outside surfaces of described measurement body, resistance strain gage B 3, resistance strain gage C 4, resistance strain gage D 5, resistance strain gage E 6 and resistance strain gage F 7, described resistance strain gage A 2 and resistance strain gage B 3 are connected in A/D change-over circuit A through bridge diagram A and amplifying circuit A, described resistance strain gage C 4 and resistance strain gage D 5 are connected in A/D change-over circuit B through bridge diagram B and amplifying circuit B, described resistance strain gage E 6 and resistance strain gage F 7 are connected in A/D change-over circuit C through bridge diagram C and amplifying circuit C, described A/D change-over circuit A, A/D change-over circuit B and A/D change-over circuit C are connected to single-chip microcomputer, and described single-chip microcomputer is connected in automatic control system.Measurement body 1 each surface of the square bodily form is equipped with a resistance strain gage, resistance strain gage A 2 and resistance strain gage B 3 are used for measuring the up and down force value of current, described resistance strain gage C 4 and resistance strain gage D 5 can measure the water flow pressure value of the left and right sides, resistance strain gage E 6 and resistance strain gage F 7 can measure the water flow pressure value of fore-and-aft direction, the change in resistance that resistance strain gage produces is respectively by bridge diagram A, bridge diagram B and bridge diagram C convert the resistance change rate Δ R/R of resistance strain gage to Voltage-output, then offer respectively amplifying circuit A, amplifying circuit B and amplifying circuit C pass through A/D change-over circuit A after amplifying again, A/D change-over circuit B and A/D change-over circuit C carry out after the analog to digital conversion signal being sent to single-chip microcomputer, single chip circuit carries out analyzing and processing to the foil gauge stressing conditions that is hit, the pressure measuring value of each face is uploaded to automatic control system by communication modes, set up corresponding phasor coordinate through software analysis its measured value, the computing by computing machine can draw the parameters such as the direction of current and flow velocity.
The upper surface of above-mentioned measurement body 1 is provided with for interting the through wires hole 8 of the cable be connected in resistance strain gage, the stube cable of each resistance strain gage can be from measure body 1 cabling through through wires hole 8 be drawn out to measure external, thereby make cabling attractive in appearance.
Claims (2)
1. rock stratum flow measurement instrument, it is characterized in that: the measurement body (1) that comprises into the square bodily form, be separately installed with resistance strain gage A(2 on (1) six outside surface of described measurement body), resistance strain gage B(3), resistance strain gage C(4), resistance strain gage D(5), resistance strain gage E(6) and resistance strain gage F(7), described resistance strain gage A(2) and resistance strain gage B(3) be connected in A/D change-over circuit A through bridge diagram A and amplifying circuit A, described resistance strain gage C(4) and resistance strain gage D(5) be connected in A/D change-over circuit B through bridge diagram B and amplifying circuit B, described resistance strain gage E(6) and resistance strain gage F(7) be connected in A/D change-over circuit C through bridge diagram C and amplifying circuit C, described A/D change-over circuit A, A/D change-over circuit B and A/D change-over circuit C are connected to single-chip microcomputer, and described single-chip microcomputer is connected in automatic control system.
2. rock stratum according to claim 1 flow measurement instrument is characterized in that: the upper surface of described measurement body (1) is provided with for interting the through wires hole (8) of the cable that is connected in resistance strain gage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561883 CN202886402U (en) | 2012-10-30 | 2012-10-30 | Rock stratum water flow measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561883 CN202886402U (en) | 2012-10-30 | 2012-10-30 | Rock stratum water flow measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886402U true CN202886402U (en) | 2013-04-17 |
Family
ID=48077814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220561883 Expired - Fee Related CN202886402U (en) | 2012-10-30 | 2012-10-30 | Rock stratum water flow measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066406A (en) * | 2016-05-24 | 2016-11-02 | 首都师范大学 | Air flow rate sensor |
-
2012
- 2012-10-30 CN CN 201220561883 patent/CN202886402U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066406A (en) * | 2016-05-24 | 2016-11-02 | 首都师范大学 | Air flow rate sensor |
| CN106066406B (en) * | 2016-05-24 | 2018-12-04 | 首都师范大学 | Air flow rate 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: 20130417 Termination date: 20141030 |
|
| EXPY | Termination of patent right or utility model |