Electric energy meter detection device and detection method based on spectrum sensor

Abstract

The invention discloses an electric energy meter detection device and method based on a spectrum sensor. The detection device comprises a main control unit, a three-phase AC standard source, a spectrum sensor, a main control single-chip microcomputer and an error calculation device. During detection, the main control unit controls the three-phase alternating-current standard source to output an electric signal with rated power to the electric energy meter to be detected, and sends a high-frequency pulse signal matched with the electric signal to the error calculation device at the same time; the spectrum sensor collects scintillation light of a to-be-detected electric energy meter pulse indicating lamp to obtain spectrum data; the master control single-chip microcomputer outputs a low-frequency pulse signal to an error calculation device according to the proportion of the color of the pulse indicating lamp in the spectral data; and the error calculation device compares the high-frequency pulse signal with the low-frequency pulse signal to obtain a flicker error. The interference of daily light, ambient light and the like on the flicker detection of the indicator light can be eliminated, and the accuracy and credibility of a detection result are improved.

Description

technical field [0001] The invention relates to a device for detecting the flickering frequency of the pulse indicator light of the electric energy meter, and also relates to a method for detecting the flickering frequency of the pulse indicator light of the electric energy meter. Background technique [0002] The flicker frequency of the pulse indicator light of the electric energy meter is related to the collected electrical signal. Before leaving the factory, it is necessary to detect the flashing frequency of the indicator light to judge whether the running speed of the electric energy meter meets the requirements. [0003] At present, the detection method of the flicker frequency of the pulse indicator light is to use a photosensitive diode to identify the pulse flicker. Although this scheme can realize flicker collection under ideal experimental conditions, since the photosensitive diode can only distinguish the flicker state by sensing the intensity of the light, it ...

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Problems solved by technology

Although this scheme can realize flicker collection under ideal experimental conditions, since the photosensitive diode can only distinguish the flicker state by sensing the intensity of the light, it cannot avoid and solve the deviation and interference caused by daily light source and ambient light changes on the detection results. Therefore, the accuracy and reliability of the test results are poor

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