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Liquid level metering tank checking device and liquid level metering tank checking method

A technology of calibration device and measuring tank, applied in measuring device, test/calibration device, liquid/fluid solid measurement, etc., can solve the problems of measuring deviation, deformation of measuring tank, uneven vertical direction of measuring tank, etc. Good reproducibility and the effect of ensuring measurement accuracy

Inactive Publication Date: 2019-03-29
广州协堡建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems caused by the deformation of the metering tank body, the large area of ​​the bottom of the metering tank, and the unevenness of the metering tank in the vertical direction, the invention provides a liquid level metering tank calibration device and its method

Method used

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  • Liquid level metering tank checking device and liquid level metering tank checking method
  • Liquid level metering tank checking device and liquid level metering tank checking method

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Experimental program
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Effect test

Embodiment 1

[0020] Such as figure 1 As shown, a liquid level measuring tank calibration device includes a measuring tank 1, a standard cylinder 2 and a control panel 3. The measuring tank 1 is filled with water, and a liquid level sensor 4 is installed in the measuring tank 1. The liquid level sensor 4 detects and measures The current value of the tank 1, the metering tank 1 and the standard cylinder 2 are connected through the liquid inlet pipe 5, and the water pump 6 is set on the liquid inlet pipe 5, and the water in the metering tank 1 is delivered to the standard cylinder 2 through the water pump 6, and the communication valve 7 Installed on the liquid inlet pipe 5 between the water pump 6 and the standard cylinder 2, the water flows into the standard cylinder 2 through the communication valve 7, and the detection sensor 8 is set in the standard cylinder 2, and the detection sensor 8 is connected to one end of the control board 3, and the detection sensor 8 Transfer the weight value ...

Embodiment 2

[0025] A liquid level gauge tank calibration method, such as figure 1 As shown, the metering tank 1 is filled with water, the water in the metering tank 1 flows into the standard cylinder 2 through the liquid inlet pipe 5, the liquid level sensor 4 detects the real-time current value of the metering tank 1, and the detection sensor 8 detects the standard cylinder 2 According to the relationship between the current value and the water weight value in the standard cylinder 2, the water weight value flowing into the standard cylinder 2 is obtained, thereby calculating the water weight value of the metering tank 1, and establishing the water weight value in the metering tank 1 The calibration parameter diagram related to the current value is stored in the control panel 3, so that the water weight value in the measurement tank 1 can be obtained by measuring the output current value of the tank 1.

[0026] At the beginning, when the metering tank is filled with water, the output cur...

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Abstract

The invention discloses a liquid level metering tank checking device and a liquid level metering tank checking method. The device comprises a metering tank, a standard cylinder and a control panel. The metering tank is filled with liquid, and a liquid level sensor is arranged in the metering tank. The liquid level sensor detects the current value of the metering tank. The metering tank and the standard cylinder are connected through a liquid inlet pipe, and a water pump is arranged on the liquid inlet pipe. The water pump is used for conveying the liquid in the metering tank to the standard cylinder. A communicating valve is arranged on the liquid inlet pipe between the water pump and the standard cylinder. The liquid flows into the standard cylinder through the communicating valve. A detection sensor is arranged in the standard cylinder, and the detection sensor is connected with one end of the control panel. The other end of the control panel is connected with the liquid level sensor. A relation between the liquid weight value and the current value in the metering tank is established, and the relation is stored in the control panel. Therefore, the liquid weight value of the metering tank is obtained through the output current value of the metering tank. According to the device and the method, the metering precision of the metering tank is guaranteed. The metering deviation caused by the shape of the metering tank is solved. The device and the method are convenient and rapid in operation, and the reproducibility is good.

Description

technical field [0001] The invention relates to the technical field of liquid level sensor inspection, in particular to a liquid level metering tank verification device and a method thereof. Background technique [0002] The liquid level sensor is a pressure sensor for measuring the liquid level of the metering tank. It is based on the fact that the measured liquid static pressure is proportional to the height of the liquid. It adopts foreign advanced isolated diffused silicon sensitive elements or ceramic capacitor pressure sensitive sensors. It is converted into an electrical signal, and then converted into a standard electrical signal after temperature compensation and linearity correction. Therefore, the accuracy of the liquid level sensor to detect the metering tank not only depends on the accuracy of the liquid level sensor itself and the size of the bottom area of ​​the metering tank, but also is related to the uniformity of the vertical direction of the metering tank...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00G01F23/18
CPCG01F23/18G01F25/20
Inventor 蒋金明周常林陈均侨华丽
Owner 广州协堡建材有限公司