Measuring and testing – Volume or rate of flow – Thermal type
Patent
1989-12-13
1991-03-05
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Thermal type
73 2505, 250343, G01F 168
Patent
active
049968769
ABSTRACT:
A microrheoscopic detector for gases including two thin wire resistance thermometers and a heating conductor disposed between the two resistance thermometers, the resistance thermometers being positioned in the area of influence of the heating conductor and spaced therefrom in a definite spatial fixation, the heating conductor having a span transverse gas flow path and comprising a plurality of parallel conductor legs laying in the span in the same plane as the resistance thermometers.
REFERENCES:
patent: Re30105 (1979-10-01), Rodder
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patent: 4024761 (1977-05-01), Djorup
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patent: 4478077 (1984-10-01), Bohrer
patent: 4542650 (1985-09-01), Renken
"Empfindlichkeit und Rauschen beim Di-ferential-Hitzdraht-Anemometer", (Sensitivity and Noise in the Differential-Hot Wire-Anemometer), Technisches Messen 48, Jahrgang 1981, Heft 11, pp. 367-374.
Krause Hans
Randow Albert
Goldstein Herbert
Leybold Aktiengesellschaft
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