Flow meter calibration method and device
A calibration method and technology of a calibration device, which are applied in the field of solar cells, can solve problems such as time-consuming and labor-intensive, and achieve the effect of simple and practical calibration process.
Active Publication Date: 2020-04-21
徐州鑫宇光伏科技有限公司
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Problems solved by technology
[0003] Based on this, it is necessary to provide a flowmeter calibration method and device for the current solar cell production flowmeter calibration requires the use of external measuring instruments, and the calibration process is time-consuming and labor-intensive.
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[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.
[0032] The embodiment of the present invention provides a method for calibrating a flowmeter, such as figure 1 As shown, the following steps may be included:
[0033] Step S101, obtaining the test pressure and the actual pressure in the cavity of the flowmeter to be calibrated.
[0034] In this embodiment, the test pressure and the actual pressure in the cavity of the flowmeter to be calibrated are obtained by detecting the pressure of the cavity of the flowmeter to be calibrated in different states.
[0035] Step S102, calculating the standard pr...
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The present invention relates to a method and device for calibrating a flowmeter, wherein the method includes: obtaining the test pressure and the actual pressure in the cavity of the flowmeter to be calibrated; calculating the standard pressure according to the test pressure in the cavity of the flowmeter to be calibrated; if the actual pressure is equal to the standard If the difference between the pressures reaches a preset threshold range, the zeroing position of the flowmeter is adjusted according to the difference. The embodiment of the present invention detects the pressure in different states of the cavity of the flowmeter to be calibrated, thereby obtaining the test pressure and the actual pressure in the cavity of the flowmeter to be calibrated, and then calculates the standard pressure according to the test pressure, and calculates the standard pressure according to the actual pressure and the standard pressure The difference between the flowmeters to be calibrated is calibrated, so that there is no need to use external measuring instruments such as flowmeter calibrators to calibrate the flowmeter. The entire calibration judgment process can be resolved within 2 minutes, and there is no need to stop the calibration. The calibration process is simple and practical .
Description
technical field [0001] The invention relates to solar cell technology, in particular to a method and device for calibrating flowmeters in solar cell production. Background technique [0002] In the production of silicon solar cells, whether it is tubular PECVD (Plasma Enhanced Chemical Vapor Deposition, plasma enhanced chemical vapor deposition method) or plate PECVD, the accuracy of flowmeter measurement will affect the quality of film formation. Therefore, the flowmeter needs to be calibrated regularly, but the current conventional flowmeter calibration method needs to use external measuring instruments such as calibrator for calibration, and different equipment and flowmeters need to use different calibrator, and need to stop during calibration And the calibration time is long, resulting in time-consuming and labor-intensive flowmeter calibration process. Contents of the invention [0003] Based on this, it is necessary to provide a method and device for calibrating a ...
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IPC IPC(8): G01F25/00
CPCG01F25/10
Inventor 焦如意
Owner 徐州鑫宇光伏科技有限公司