Recorders – Electric recording – Electrochemical
Patent
1989-11-13
1991-01-15
Griffin, Donald A.
Recorders
Electric recording
Electrochemical
G01D 1506
Patent
active
049857169
ABSTRACT:
An apparatus for generating ions which can be operated by a low signal voltage. The apparatus includes, a first voltage source for applying to a first electrode a first voltage slightly less than a critical voltage for constant ion generation; and a second voltage source for applying to a second electrode a second voltage significantly less than the first voltage having such an amplitude that a total of the first and the second voltages exceeds the critical voltage such that the ion generation by the first electrode takes place only while the second voltage is being applied to the second electrode.
REFERENCES:
patent: 4155093 (1979-05-01), Fotland et al.
patent: 4160257 (1979-07-01), Carrish
patent: 4491855 (1985-01-01), Fujii et al.
Hosaka Yasuo
Ohno Tadayoshi
Griffin Donald A.
Kabushiki Kaisha Toshiba
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