CN202075432U - Rainfall calibrator - Google Patents
Rainfall calibrator Download PDFInfo
- Publication number
- CN202075432U CN202075432U CN201120124345XU CN201120124345U CN202075432U CN 202075432 U CN202075432 U CN 202075432U CN 201120124345X U CN201120124345X U CN 201120124345XU CN 201120124345 U CN201120124345 U CN 201120124345U CN 202075432 U CN202075432 U CN 202075432U
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- storage tank
- water storage
- rainfall
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- valve
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Abstract
The utility model relates to a calibrator, especially relates to a rainfall calibrator, comprising a water storage tank, an outlet pipe and a distance measuring device. The outlet pipe is arranged on the bottom of the water storage tank, and the distance measuring device is arranged on the water storage tank. The rainfall calibrator also comprises a protective shell, a valve, a motor, a circuit board platform, a displaying device, an input keyboard and a DSP signal processing module. The water storage tank is placed in the protective shell, the valve is arranged on the outlet pipe, and the motor is connected with the valve; the circuit board platform is arranged at the lower part of the water storage tank, the DSP signal processing module is arranged on the circuit board platform, and the displaying device and the input keyboard are arranged at the upper end of the water storage tank. The rainfall calibrator provided by the utility model employs an integrated design, being small in volume and convenient in carrying, employs a visualization interface operation, being simple in intelligent calibration operation, employs an ultrasonic sensor to measure water quantity, being quick and accurate, and employs a step motor to control the water quantity, being accurate and controllable.
Description
Technical field
The utility model relates to a kind of prover and calibration steps, relates in particular to a kind of rainfall prover.
Background technology
The measurement of precipitation is all to be extremely important for the observation of meteorology, the hydrology, ocean, environment or to the safety of aviation, railway traffic, and particularly the accuracy of its measurement just seems particularly important for the gentle Elephantidae of the validity check of rainmaking is ground.As guaranteeing udometric accuracy of measurement, rain gage is calibrated then be very important.
Existing rain gage calibration steps has two kinds, the one, manually inject the drainage metering method: by GB GB/T 11832-2002 " tipping-bucket rain-gauge " regulation, rainfall calibration operation principle is to adopt the dynamic calibration method, promptly use the rainfall calibration equipment, with little, in, the rainfall amount of big three kinds of different raininess (0.5,2,4mm/min), be modeled to the flow of corresponding stable state, enter the funnel of gauge assembly through conduit, flow into tipping bucket at certain head pressure; The 2nd, artificial water supply's checking method: fill with the clear water that is equivalent to the 10mm rainfall amount with the 10mm precipitation gauge.The simulation raininess is the flow that 0.5mm/min, 2.0mm/min and 5mm/min rainfall amount form, slowly, inject tipping bucket from funnel equably, and every kind of raininess calibrating 2 times.According to existing calibrating standard, it is very loaded down with trivial details to carry out the process of calibration operation to rain gage, needs manual link more, and as the profit water of system, the last water of standard ball is simulated the adjustment and the data acquisition of raininess, data processing or the like.Whole process inefficiency, and easily cause personal error, so need to produce automatically the calibration instrument of required rainfall.
The utility model content
The utility model provides a kind of rainfall prover, has solved above-mentioned rainfall calibration instrument inefficiency, is easy to generate the problem of error.
The utility model adopts following technical scheme:
A kind of rainfall prover of the utility model comprises water storage tank, rising pipe, stadimeter; The bottom of described water storage tank lays out water pipe, arranges stadimeter on the water storage tank; Also comprise protecting sheathing, valve, motor, circuit board platform, display device, input keyboard, DSP signal processing module; Described water storage tank is placed in the protecting sheathing; valve arrangement is on rising pipe, and motor is connected with valve, the arranged beneath circuit board platform of water storage tank; the DSP signal processing module is arranged on the circuit board platform, and display device and input keyboard are arranged in the upper end of water storage tank.
A kind of rainfall prover described in the utility model, described stadimeter is the ultrasonic ranging sensor.
A kind of rainfall prover described in the utility model, the DSP signal processing module is connected with the ultrasonic ranging sensor is two-way, and the DSP signal processing module is connected with input keyboard, motor, display device respectively.
A kind of rainfall prover described in the utility model, described motor is a stepper motor.
Beneficial effect
The rainfall prover that the utility model provides adopts integrated design, and volume is small and exquisite, is easy to carry.Components and parts in the device are comparatively common, are easy to buying and maintenance, and cheap, and cost is lower; The visualization interface operation, intelligent calibration operation is simple.Adopt the ultrasonic sensor measuring and calculating water yield, quick and precisely, adopt the step motor control water yield, accurately controlled.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a control survey module diagram of the present utility model;
1 is water storage tank among the figure, the 2nd, and rising pipe, the 3rd, stadimeter, the 4th, protecting sheathing, the 5th, valve is a motor, the 7th, circuit board platform, the 9th, display device, the 9th, input keyboard.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in the figure: a kind of rainfall prover comprises water storage tank 1, rising pipe 2, stadimeter 3, protecting sheathing 4, valve 5, motor 6, circuit board platform 7, display device 8, input keyboard 9, DSP signal processing module.
The bottom of described water storage tank 1 lays out water pipe 2, arranges stadimeter 3 on the water storage tank 1; Water storage tank 1 is placed in the protecting sheathing 4; valve 5 is arranged on the rising pipe 2, and motor 6 is connected with valve 5, the arranged beneath circuit board platform 7 of water storage tank 1; the DSP signal processing module is arranged on the circuit board platform 7, and display device 8 and input keyboard 9 are arranged in the upper end of water storage tank 1.Stadimeter 3 is ultrasonic ranging sensors.Motor 6 is stepper motors.
The DSP signal processing module is connected with the ultrasonic ranging sensor is two-way, and the DSP signal processing module is connected with input keyboard 9, motor 6, display device 8 respectively.
The DSP signal processing module adopts 32 fixed DSPs of TMS320F2812 type.
Utilize the method for rainfall prover calibration rainfall, step is as follows:
1), will add water in the water storage tank 1;
2), input needs the rainfall of simulation and is shown by liquid crystal display;
3), the ultrasonic ranging sensor is measured and record the water level in the water storage tank 1;
4), the DSP signal processing module is calculated liquid level decline desired value according to simulation rainfall and the current liquid level gauge keyed in;
5), by handling the echo time difference because of the decline of water table generation of ultrasonic ranging sensor measurement, real-time measuring liquid level;
5), the DSP signal processing module opens by the accurate control step electric machine valve of liquid level change, when decline of water table after desired value, valve closing;
6), on liquid crystal display, show the udometric measured value that will calibrate, the simulation rainfall that the user is set compares with the output valve of rain gage measurement output terminal, calibration is finished in guidance.
The minimum precision of level gauging is 0.2mm, and system core algorithm is target " level value " and real-time " level value " are compared, in case both are equal or the former is little, closes water valve immediately.Records liquid level at every turn and have same error, and control signal is both differences that promptly error counteracting does not each time influence discharging water yield liquid level difference.The internal diameter of primary tank is set to 100mm, and the general rainfall meter, water container internal diameter as tipping-bucket rain-gauge is 200mm, by calculating the equal volume water yield as can be known, the liquid level ratio of two containers is 4:1, that is to say that simulated rainfall millimeter * 4 of setting are the liquid level consumption in this system's primary tank.Like this, the scope of ultrasonic liquid-level measurement also can correspondingly enlarge, and can improve the precision of measurement.
Claims (4)
1. a rainfall prover comprises water storage tank (1), rising pipe (2), stadimeter (3); The bottom of described water storage tank (1) lays out water pipe (2), and water storage tank (1) is gone up and arranged stadimeter (3); It is characterized in that: also comprise protecting sheathing (4), valve (5), motor (6), circuit board platform (7), display device (8), input keyboard (9), DSP signal processing module; Described water storage tank (1) is placed in the protecting sheathing (4); valve (5) is arranged on the rising pipe (2); motor (6) is connected with valve (5); the arranged beneath circuit board platform (7) of water storage tank (1); DSP signal processing module (10) is arranged on the circuit board platform (7), and display device (8) and input keyboard (9) are arranged in the upper end of water storage tank (1).
2. a kind of rainfall prover according to claim 1 is characterized in that: described stadimeter (3) is the ultrasonic ranging sensor.
3. a kind of rainfall prover according to claim 1 and 2 is characterized in that: the DSP signal processing module is connected with the ultrasonic ranging sensor is two-way, and the DSP signal processing module is connected with input keyboard (9), motor (6), display device (8) respectively.
4. a kind of rainfall prover according to claim 1 is characterized in that: described motor (6) is a stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120124345XU CN202075432U (en) | 2011-04-26 | 2011-04-26 | Rainfall calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120124345XU CN202075432U (en) | 2011-04-26 | 2011-04-26 | Rainfall calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202075432U true CN202075432U (en) | 2011-12-14 |
Family
ID=45113529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120124345XU Expired - Fee Related CN202075432U (en) | 2011-04-26 | 2011-04-26 | Rainfall calibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202075432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253431A (en) * | 2011-04-26 | 2011-11-23 | 南京信息工程大学 | Rainfall calibrator and calibration method |
| CN104359531A (en) * | 2014-11-13 | 2015-02-18 | 中国石油天然气股份有限公司 | Skip metering device checking system and skip metering device checking device |
-
2011
- 2011-04-26 CN CN201120124345XU patent/CN202075432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253431A (en) * | 2011-04-26 | 2011-11-23 | 南京信息工程大学 | Rainfall calibrator and calibration method |
| CN104359531A (en) * | 2014-11-13 | 2015-02-18 | 中国石油天然气股份有限公司 | Skip metering device checking system and skip metering device checking device |
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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: 20111214 Termination date: 20130426 |