Balanced corona electrostatic field sensor

Details Balanced corona electrostatic field sensor Balanced corona electrostatic field sensor

1979-06-27

1981-04-14

Tokar, Michael J.

Electricity: measuring and testing

Electrostatic field

324 72, 361218, G01N 2742

Patent

active

042622549

ABSTRACT:
A voltage driven corona current sensing probe, utilized to sense electrostatic charge (such as on aircraft), is provided with higher positive operating voltage than negative operating voltage to compensate for the different electron emission threshold and mobility of electrons compared to positive ions. In an AC embodiment, the voltage difference is achieved by a polarity-asymmetric voltage divider on a high voltage AC source feeding a single probe. In another embodiment, separate DC power supplies drive respective probes with different voltages.

REFERENCES:
patent: 2877308 (1959-03-01), Reiner et al.
patent: 3079556 (1963-02-01), Connelly et al.
patent: 3343085 (1967-09-01), Oushinsky
patent: 3729675 (1973-04-01), Vosteen
patent: 3857066 (1974-12-01), Cline et al.
patent: 4054835 (1977-10-01), Los et al.

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