Air flow measuring element and air flow measuring apparatus ther

Details Air flow measuring element and air flow measuring apparatus ther Air flow measuring element and air flow measuring apparatus ther

1998-01-12

1999-04-06

Patel, Harshad

Measuring and testing

Volume or rate of flow

Thermal type

G01F 168

Patent

active

058921508

ABSTRACT:
A measuring element for an air flow rate measuring apparatus has upstream and downstream heating resistors and first and second temperature compensating resistors paired with the upstream and downstream heating resistors, respectively. The resistors are mounted on an electrically insulated substrate positioned within an air flow. A substantial part of resistor film of the temperature compensating resistor paired with the upstream heating resistor is positioned upstream on the insulated substrate relative to the resistor film of the compensating resistor paired with the downstream heating resistor.

REFERENCES:
patent: 5237867 (1993-08-01), Cook, Jr.

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