Hot-wire type flowmeter

Details Hot-wire type flowmeter Hot-wire type flowmeter

1991-05-29

1994-02-01

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

731182, 732025, 338312, G01F 168

Patent

active

052823857

ABSTRACT:
A hot-wire type flowmeter for measuring a flow rate of a fluid in a passage comprises a pair of support pins extending in parallel with an axis of the passage and an electrical resistor supported between the support pins in the passage. The resistor includes a pipe made of an electrically insulating material, a resistor wire wound on the pipe, and a pair of lead wires. The lead wires are secured to opposite end portions of the pipe and extend in opposite directions and in parallel to each other. The resistor is supported by the support pins through the lead wires.

REFERENCES:
patent: 652504 (1900-06-01), Bennett
patent: 3314290 (1967-04-01), Peranlo
patent: 4393697 (1983-07-01), Sato et al.
patent: 4513615 (1985-04-01), Sato et al.
patent: 4709581 (1987-12-01), Nishimura et al.
patent: 4739651 (1988-04-01), Smith
patent: 4909079 (1990-03-01), Nishimura et al.
patent: 5209113 (1993-05-01), Sawada et al.

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