Device for flowthrough rate measurement in an internal combustio

Details Device for flowthrough rate measurement in an internal combustio Device for flowthrough rate measurement in an internal combustio

1981-06-18

1983-12-20

Goldstein, Herbert

Measuring and testing

Simulating operating condition

Marine

73204, G01F 168

Patent

active

044209711

ABSTRACT:
A device is proposed for measuring the flowthrough rate in an internal combustion engine, particularly for measuring the air throughput in the intake tube. The device has a measurement bridge functioning on the principle of constant-temperature control, and also a regulating deivce for the total bridge current during the burn-off phase of the hot wire or hot film as one of the bridge resistors. The essential feature is that the bridge circuit assembly comprises at least three voltage dividers; for the purpose of regulating the electric current in the burn-off phase and during measurement operation, respective control voltages are picked up between two different voltage dividers.

REFERENCES:
patent: 4196622 (1980-04-01), Peter
patent: 4341114 (1982-07-01), Plapp

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