Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1985-09-06
1987-06-30
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
340605, 174 11R, G01R 3108
Patent
active
046773711
ABSTRACT:
A coaxial cable and a bare wire are aligned in parallel relationship and affixed within insulation covers which have openings therein so as to partly expose both the bare wire and the outer conductor of the coaxial cable at the atmosphere, forming a leak detecting sensor. By the use of resistance meters, the core wire of the coaxial cable is utilized to detect both the presence and the location of a leak.
REFERENCES:
patent: 3365661 (1968-01-01), Zimmerman
patent: 4029889 (1977-06-01), Mizuochi
patent: 4319232 (1982-03-01), Westphal et al.
patent: 4594638 (1986-06-01), Suzuki et al.
Eisenzopf Reinhard J.
Harvey Jack B.
Junkosha Co. Ltd.
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