Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1991-08-30
1993-01-26
Strecker, Gerard R.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324690, 73 614, G01R 2726, G01N 2722
Patent
active
051825236
ABSTRACT:
An apparatus for ascertaining the alcohol content or the calorific value of a mixture containing alcohol and gasoline includes an electrically conductive housing through which the mixture flows and in which at least one physical parameter of the mixture is measured to produce a measurement. An electronic measuring circuit is disposed in the housing for evaluating the measurement. The housing has a wall with a part of the wall forming a first electrode of a capacitor. An intermediate plate is associated with the housing. An electrically conductive sensor element is secured in the intermediate plate and partly surrounded by the mixture. The electrically conductive sensor element forms a second electrode of the capacitor and forms an electrical connection between the second electrode and the measuring circuit.
REFERENCES:
patent: 4887023 (1989-12-01), Gimson
patent: 4939467 (1990-07-01), Noglami et al.
patent: 4939468 (1990-07-01), Takeuchi
Brabetz Ludwig
Ertel Gernot
Schwarz Waldemar
Do Diep
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
Strecker Gerard R.
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