Resistors for thermal flowmeters

Details Resistors for thermal flowmeters Resistors for thermal flowmeters

1993-03-01

1994-09-20

Lateef, Marvin M.

Electrical resistors

Resistance value responsive to a condition

Ambient temperature

338270, 338273, H01C 304

Patent

active

053493222

ABSTRACT:
A resistor for a thermal type of flowmeter includes a ceramic substrate, a thin platinum film formed on the surface of the ceramic substrate, and lead wires for connecting the thin platinum film with an external circuit, and is located in a fluid to detect its flow rate. When the resistance value, R (.OMEGA.) , of the resistor for a thermal type of flowmeter is expressed in terms of a function of temperature, T (.degree.C.):

REFERENCES:
patent: 4542650 (1985-09-01), Renken et al.
patent: 4903001 (1990-02-01), Kikuchi
patent: 5144279 (1992-09-01), Yajima et al.
patent: 5175527 (1992-12-01), Ishiguro et al.

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