Heating resistor type air flow rate measuring apparatus

Details Heating resistor type air flow rate measuring apparatus Heating resistor type air flow rate measuring apparatus

2006-05-02

2006-05-02

Noori, Max (Department: 2855)

Measuring and testing

Volume or rate of flow

Thermal type

Reexamination Certificate

active

07036368

ABSTRACT:
A heating resistor type air flow rate measuring apparatus is provided with a couple of heating resistors placed at the positions where those resistors may each interfere thermally with respect to an air flow, and a couple of driving circuits for driving those heating resistors. The air flow rate signal is obtained by calculating the difference between the output signals of a couple of heating resistors in terms of heat radiation rate effected by an air flow, and adding the difference value onto the output signal of one of heating resistors.

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