Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge
Patent
1992-09-15
1993-09-21
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Discharging or preventing accumulation of electric charge
361220, H05F 300
Patent
active
052474208
ABSTRACT:
A ground-free device for the measurement and/or the removal of static charges from a conductive or semi-conductive body, and particularly useful for the human body and transportation vehicles, such as cars and aircrafts. The device is based on the fundamental concept that a discharge terminal equipped with a capacitor will acquire a voltage proportional to the amount of charge on the body. This concept is used in the present invention to activate a mechanism for the removal of static charges. The mechanism comprises a Voltage-Controlled Oscillator (VCO) that senses voltage on the discharge capacitor and generates high voltage pulses of a frequency that is proportional to the amount of charge on the body. High voltage, in turn, effects the removal of charges by means of air ionization.
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Author: H. W. Cleveland, Title: Static Discharging Characteristics of a jet Ion Generator, Date: 1967, International Conf. on Static Electrification, pp. 139-145.
Author: B. R. Whewell et al., Title: A Study of Charged Condensation Droplets from an Aircraft Discharger., Date: 1971, International Conf. on Static Electr., pp. 270-281.
Pulse, Digital and Switching Waveforms, a book by Millman and Taub, published by McGraw Hill, 1984, pp. 605-606.
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