Direction-sensitive flow-rate indicator

Details Direction-sensitive flow-rate indicator Direction-sensitive flow-rate indicator

1988-09-16

1990-01-02

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

73189, G01F 168

Patent

active

048904899

ABSTRACT:
A direction-sensitive flow velocity meter in which at least first and second thermocouples of the Seebeck type are arranged in a symmetrical layout in a common semiconductor substrate. The configuration is such that imaginary lines joining the junction ends of the thermocouples each extend parallel to perpendicular flow velocity components, with the heating element or electronic circuitry for processing the thermocouple voltages being integrated into the common substrate at surface areas free of the thermocouples.

REFERENCES:
patent: 4332157 (1982-06-01), Zemel et al.
patent: 4373386 (1983-02-01), Schuddemat et al.
patent: 4561303 (1985-12-01), McCarthy
patent: 4637253 (1987-01-01), Sekimura et al.

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