Apparatus for the measurement of the mass of a flowing medium

Details Apparatus for the measurement of the mass of a flowing medium Apparatus for the measurement of the mass of a flowing medium

1981-10-13

1983-09-13

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

73118, G01F 168, G01P 512

Patent

active

044035063

ABSTRACT:
An apparatus for the measurement of the mass of a flowing medium, such as for the measurement of the induced air mass in internal combustion engines which includes at least one temperature-dependent resistor film disposed in the flow of the medium, the temperature and/or resistance of the film being governed in accordance with the mass of the medium wherein the manipulated variable is a standard for the mass of the medium. The temperature-dependent resistor film is disposed in a region of stabilized flow in the flow cross section and, to this end, the temperature-dependent resistor film may be disposed either upstream of the narrowest cross section of a nozzle-like constriction wherein the pressure steadily decreases or in a gap having a laminar gap flow.

REFERENCES:
patent: 4080821 (1978-03-01), Johnston
patent: 4083244 (1978-04-01), Agar et al.
patent: 4213335 (1980-07-01), Peter et al.
Datametrics Bulletin 600 "Heat Sensor Find Wide Wide Application in Flow Measurements" 1971 FIGS. 6 and 7.

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