Calibration method and device for electric energy meter
A calibration method and technology for calibration devices, which are applied to measurement devices, measurement of electrical variables, instruments, etc., can solve the problems of fixed viewing position of naked-eye stereoscopic displays, low efficiency and low accuracy of electric meters, and optimize the test sequence and shorten the calibration of meters. time, the effect of improving the accuracy of the calibration table
Active Publication Date: 2013-02-13
SHENZHEN TECHRISE ELECTRONICS
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[0004] In view of this, the embodiments of the present invention provide a method and device for calibrating an electric energy meter, which solves the problem of fixed viewing position and narrow viewing angle of the naked-eye three-dimensional display; the problems of low efficiency and low accuracy caused by manual adjustment errors of the electric meter
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[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0013] Such as figure 1 Shown is a flowchart of a calibration method for an energy meter. Step S100, setting the meter calibration error threshold of the electric energy meter. Specifically: set the basic parameters of voltmeter calibration, including meter type, rated voltage, phase line, pulse constant, meter calibration voltage, meter calibration current, noise current and phase failure current, etc., and set the calibration error allowed by these basic parameter...
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The invention discloses a calibration method for an electric energy meter. The calibration method comprises the following steps: setting a meter calibration task parameter and a meter calibration error threshold of the electric energy meter; monitoring calibration information in the calibration process of the electric energy meter; acquiring the meter calibration error of the electric energy meter according to the calibration information; re-calibrating the electric energy meter if the meter calibration error is larger than the meter calibration error threshold; and completing meter calibration if the meter calibration error is smaller than or equal to the meter calibration error threshold. The invention also discloses a calibration device for the electric energy meter. The calibration method and the calibration device for the electric energy meter, which are disclosed by the invention, can promptly discover errors caused in the meter calibration process through monitoring the meter calibration process, thereby realizing accurate calibration of the electric energy meter.
Description
technical field [0001] The invention relates to the field of electric energy instruments, in particular to a method and device for calibrating an electric energy meter. Background technique [0002] Nowadays, the measurement accuracy of the chip used in the energy meter is getting higher and higher, and more and more parameters are involved. The existing energy meter calibration method is mainly to calibrate some typical parameters such as: gain GAIN calibration, offset offset calibration and phase Phase calibration, etc. These calibration methods are set according to some typical parameters of ordinary metering chips, and many other parameters are not involved. In addition, the existing methods have a lack of precision for the conversion of hexadecimal numbers with decimal places, and the error is too large, which is generally brought into the formula Calculation of measurement results will produce offsets, which will affect the accuracy. In addition, the meter calibratio...
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Inventor 肖海涛梁升廉卢墩
Owner SHENZHEN TECHRISE ELECTRONICS