Heated element velocimeter

Details Heated element velocimeter Heated element velocimeter

1990-03-12

1992-06-02

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

7320417, G01F 168

Patent

active

051176912

ABSTRACT:
The present invention is a heated element sensor for detecting the flow rate of a fluid or other physical characteristics of a fluid. The invention teaches driving the thermo-resistive element along a profile having at least two states and measuring the power and temperature of the sensor at each state. In this way a dissipation coefficient can be determined and fluid flow and other physical characteristics determined without the need for ambient temperature to be determined.

REFERENCES:
patent: 3719083 (1973-03-01), Morris et al.
patent: 4043196 (1977-08-01), Trageser
patent: 4059482 (1977-11-01), Bowman
patent: 4335605 (1982-06-01), Boyd

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