Calibration method of electronic gas meter

A calibration method and gas meter technology, applied in the direction of testing/calibration devices, measuring devices, instruments, etc., can solve the problems of low calibration pass rate, low meter calibration efficiency, and low accuracy, so as to achieve reasonable calculation, ensure pass rate, The effect of improving accuracy

Active Publication Date: 2020-05-15
GOLDCARD HIGH TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing error calibration methods for electronic gas meters have defects such as low calibration efficiency, long cycle, instability, and low accuracy, and the calibration pass rate is low, which cannot well meet the calibration requirements.

Method used

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  • Calibration method of electronic gas meter
  • Calibration method of electronic gas meter
  • Calibration method of electronic gas meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like Figure 1 to Figure 3 As shown, a method for calibrating an electronic gas meter provided in Embodiment 1 of the present invention includes the following steps,

[0030] Step S100, the calibration device obtains the respective first measurement error values ​​of all gas meters corresponding to all the flow detection points according to the configured flow detection points, and then proceeds to step S200;

[0031] Step S200, the calibration device first generates the error curve data of each gas meter according to the first measurement error value of each gas meter in step S100, and then calls the metering module intermediate library to generate the correction list of each gas meter according to the error curve data, and then proceeds Step S300;

[0032] Step S300, the calibration device sends the correction list generated in step S200 to the corresponding gas meter one by one, and each gas meter checks the received correction list, and if it is correct, the gas me...

Embodiment 2

[0049] Embodiment 2 of the present invention is an improved embodiment of Embodiment 1 above, and its improvement relative to Embodiment 1 lies in that a display is provided on the calibration device. During the calibration process, the first measurement error value and the second measurement error value of each gas meter are displayed on the display in sequence, so that the calibration personnel can know the measurement error of each gas meter.

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Abstract

The invention discloses a calibration method of an electronic gas meter, which belongs to the technical field of gas meters, and comprises the following steps: calibration equipment generates a correction list of each gas meter according to a first metering error value of each gas meter, writes the correction list into the gas meter to finish initial calibration, and recalibrates the gas meter. The calibration equipment can calibrate all the gas meters corresponding to all the flow detection points at a time, and the calibration efficiency can be improved. The correction list is checked between the gas meter and the calibration equipment, so that the correctness of the correction list written into the gas meter is effectively ensured, and the calibration accuracy of the gas meter is improved. And after initial calibration is completed, the gas meters are re-calibrated, so that the calibration accuracy is further improved, and the percent of pass of the calibrated gas meters is ensured.

Description

technical field [0001] The invention relates to the technical field of gas meters, in particular to a method for calibrating an electronic gas meter. Background technique [0002] With the continuous development of the gas industry, gas metering has become particularly important. Electronic gas meters have been rapidly applied in the field of gas metering due to their advantages of high precision and low noise. Since the reading of the gas meter is the only certificate used to measure gas expenses, its accuracy and reliability are particularly important. Electronic gas meters rely on sensors for measurement. Due to the characteristics of the sensor, there are certain errors in the measurement of the sensor. It needs to be calibrated before leaving the factory to meet the sampling accuracy requirements. However, the existing methods for error calibration of electronic gas meters have defects such as low calibration efficiency, long cycle, instability, and low accuracy, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
CPCG01F25/15
Inventor 林上玉陈志华钭伟明
Owner GOLDCARD HIGH TECH
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