Fluid speed measuring probe

Details Fluid speed measuring probe Fluid speed measuring probe

1991-04-19

1993-03-02

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

G01F 168

Patent

active

051899108

ABSTRACT:
A fluid speed measuring probe utilizing a change in the resistance of a sensor made of a small piece of a single crystal of germanium in accordance with a change in temperature. The peripheral surface of the sensor is covered with an insulating member of a synthetic resin or the like and the outer periphery of the covered sensor is further covered with a spherical metal having heat conductivity. Thus, the directivity of the sensor is eliminated, thereby enabling accurate measurement of the speed of a fluid irrespective of the angle formed between the direction of the flow of the fluid and the probe.

REFERENCES:
patent: 3336804 (1967-08-01), Poppendiek et al.
patent: 4616505 (1986-10-01), Jouwsma
patent: 4856329 (1989-08-01), Buck et al.
patent: 4856330 (1989-08-01), Honda et al.
patent: 5040416 (1991-08-01), Demisch et al.

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