14-07-2023 дата публикации
Номер: CN116430119A
Принадлежит:
The invention discloses a non-contact measurement principle-based voltage harmonic detection system, which comprises a multi-path non-contact voltage acquisition module, a multi-path signal amplification module, an analog-to-digital conversion module, a key module, a display module, a communication module, a microprocessor module, a power supply module and a mobile phone upper computer module running in a mobile phone, the microprocessor module comprises a control and self-inspection module, a voltage acquisition wavelet noise reduction module, a man-machine interaction module and a wireless communication module. The circuit to be measured is not damaged, a measurement port does not need to be led out, mounting and dismounting are convenient, the workload is reduced, contact impedance is not introduced, a filter capacitor is not connected, the influence caused by measurement errors and capacitor charging and discharging is reduced, a traditional hardware filtering scheme is abandoned, and ...
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