Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1985-10-02
1988-01-12
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
34087037, 73 1DV, G01H 1100, G01R 2702
Patent
active
047194090
ABSTRACT:
A new variable impedance type system is described for measuring a preselected physical parameter such as spacing, displacement, pressure, vibration, etc. A sensor/transducer is positioned to provide the variable impedance. The sensor/transducer is part of a self-oscillatory circuit which produces pulses having a pulse rate proportional to the physical parameter being measured.
REFERENCES:
patent: 3325727 (1967-06-01), Haas
patent: 4103225 (1978-07-01), Stephens
patent: 4176555 (1979-12-01), Dorman
patent: 4295091 (1981-10-01), Ponkala
patent: 4404481 (1983-09-01), Ide
Claeys Joseph V.
Eisenzopf Reinhard J.
Mechanical Technology Incorporated
Solis Jose M.
Sullivan Joseph C.
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