| abstract |
The utility model discloses a kind of alternating current-direct current complex electrical field measuring system, including AC electric field sensor, DC electric field sensor, the first high power instrument amplifying circuit, the second high power instrument amplifying circuit, detection filter circuit, bandwidth-limited circuit, the first signal conditioning circuit, secondary signal modulate circuit and single-chip microcomputer.The system can realize the measurement of ac electric field strength, DC electric field intensity and alternating current-direct current complex electrical field intensity, the use value with engineer applied higher and scientific research. |