Electrical current flow sensor

Details Electrical current flow sensor Electrical current flow sensor

1989-06-20

1991-08-20

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

7320425, G01F 168

Patent

active

050404164

ABSTRACT:
An electical current flow sensor, where a spherical surface thereof is subjected to an in-flowing fluid in order to the speed of the fluid. The spherical surface is formed by a body made of a good thermally conductive material. An electrical resistor is disposed in a cavity in the interior of the body of good thermally conductive material. The electrical resistor is placed in a good heat exchange with the wall of the cavity. The electrical resistor is adjusted to a preset temperature by electrical current feed, whereby increased fed-in electrical current is measured and serves as a measure for the current flow speed.

REFERENCES:
patent: 3199348 (1965-08-01), Salera
patent: 3246515 (1966-04-01), Martino et al.
patent: 3372590 (1968-03-01), Sterling
patent: 4059982 (1977-11-01), Bowman
patent: 4480467 (1984-11-01), Harter et al.
Irommelin et al., "Modified Annemometers for Indoor Climate Research" in Journal of Physics F, vol. 9, No. 11, 1976, pp. 1005-1009.

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