Micro-electrometer

Details Micro-electrometer Micro-electrometer

2006-07-04

2006-07-04

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Testing potential in specific environment

C043S017100, C250S382000

Reexamination Certificate

active

07071674

ABSTRACT:
A voltmeter for measuring atmospheric or other voltages eliminates the dead band without application of high voltages or radioactive isotopes to increase conductivity in the region of the probe. A vacuum tube is operated at substantially reduced conduction in order to achieve high sensitivity and eliminate passive components in the input circuit. A voltage is developed to produce meter indication or control charging or charge-neutralizing circuits.In the preferred embodiment, a meter scale is calibrated to indicate the presence of atmospheric charges of particular interest to anglers. Naturally occurring electrical currents are known to stimulate the feeding of fish.

REFERENCES:
patent: 1622786 (1927-03-01), Horle

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