Multi-instrument correcting device and correcting method

Abstract

The invention discloses a multi-instrument correcting device and a correcting method. The correcting device comprises a host, a standard source, a standard scale and a test board. The test board comprises a plurality of instrument desks. Each instrument desk comprises a data connector and a test connector. The data connector is connected with the host through a data line. The test connector is connected with the standard source and the standard scale through a test line. The standard source and the standard scale are connected with the host through data lines. Because one standard source and one standard line simultaneously correspond to a plurality of instruments to be corrected, costs of hardware like the standard source and the standard scale are reduced; because the correcting process is controlled by a computer, and a parallel communication mode is adopted between the computer and the plurality of instruments to be corrected, response time is reduced, correcting time is greatly reduced and factory detection time of products is reduced.

Description

technical field [0001] The invention relates to the test correction in the later stage of electric meter production. Background technique [0002] Power meters include voltmeters, ammeters, energy meters, and more. The power meter is still a bare meter just after it is produced, and its accuracy is poor. It needs to be tested and calibrated before it is officially shipped to the market to make it meet the application requirements. At present, the degree of automated testing of instruments of electric equipment manufacturers is relatively low. Many instrument tests still rely on manual testing. Manual testing requires a large number of personnel. Everyone needs a standard source. At the same time, the standard source is a relatively expensive device, which greatly increases The cost of the company is reduced, and manual testing can only be performed on one instrument, but multiple instruments cannot be tested in parallel at the same time. The calibration results must be obta...

AI Technical Summary

Problems solved by technology

At present, the degree of automated testing of instruments of electric equipment manufacturers is relatively low. Many instrument tests still rely on manual testing. Manual testing requires a large number of personnel. Everyone needs a standard source. At the same time, the standard source is a relatively expensive device, which greatly increases The cost of the company is reduced, and manual testing can only be performed on one instrument, but multiple instruments cannot be tested in parallel at the same time. The calibration results must be obtained by manual calculation, so the test time takes a long time, which is a great waste of time. A large amount of information still needs to be recorded manually, which is also prone to errors

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