Pressure compensated circuit for ion mass airflow sensors

Details Pressure compensated circuit for ion mass airflow sensors Pressure compensated circuit for ion mass airflow sensors

1981-02-04

1983-06-14

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

G01F 164, G01F 178

Patent

active

043876021

ABSTRACT:
An improved detection circuit for an ion mass air flow sensor having a feedback circuit from the differential output of the sensor to the regulatory input of the high voltage supply. The feedback signal provides a second order correction to the output voltage of the high voltage power supply. This second order correction of high voltage power supply output voltage compensates the differential output of the sensor as a function of the airflow's pressure.

REFERENCES:
patent: 3831445 (1974-08-01), Durbin
patent: 4248086 (1981-02-01), Zizine
patent: 4272995 (1981-06-01), Weistra

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