Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1993-05-07
1995-02-14
Strecker, Gerard R.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324688, 73 6141, G01R 2726, G01N 2722
Patent
active
053898842
ABSTRACT:
In order to measure a complex dielectric constant, a sample 8 enveloped by a ring 9 and two laminas 10 is inserted between parallel plate electrodes constituted by an exciting electrode 2 and a response electrode 3. Measuring data is obtained as a measuring value of the sample 8 itself because an operational circuit 21 removes parasitic effects of the ring 9 and the lamina 10. Dielectric characteristics of a fluid sample can be obtained readily and accurately without contaminating the electrodes.
REFERENCES:
patent: 3450988 (1969-06-01), Breen et al.
patent: 3942107 (1976-03-01), Gerhard
patent: 4658207 (1987-04-01), Scribano et al.
patent: 5120273 (1992-08-01), Takahashi
Iizuka Nobuo
Nakamura Nobutaka
Take Masafumi
Do Diep
Seiko Instruments Inc.
Strecker Gerard R.
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