Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1988-11-17
1989-09-19
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 585C, 3332191, G01R 2700, H01P 710
Patent
active
048684880
ABSTRACT:
The use of a microwave resonator is proposed as a sensor in an arrangement for determining the relative position of the sensor relative to a metal or non-metal body. The resonator may be a component of an oscillator and determine the natural frequency thereof. The resonator can also be connected as a filter. For suitable uses, it is possible to provide a plurality of resonators which can be designed and connected in accordance with the geometry of the object to be monitored.
REFERENCES:
patent: 4019161 (1977-04-01), Katsuhiro Kimura et al.
patent: 4475089 (1984-10-01), Kahnke
patent: 4477785 (1984-10-01), Atia
patent: 4700127 (1987-10-01), Sasaki et al.
patent: 4728913 (1988-03-01), Ishikawa et al.
patent: 4806891 (1989-02-01), Kandpal
Derwent Publication No. 83-782207/40, dated Nov. 16,1983.
Eisenzopf Reinhard J.
Harvey Jack B.
Hinds William R.
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