Device for use in the ultrasonic measurement of mass flow of gas

Details Device for use in the ultrasonic measurement of mass flow of gas Device for use in the ultrasonic measurement of mass flow of gas

1976-04-08

1977-03-29

Queisser, Richard C.

Measuring and testing

Volume or rate of flow

System

G01F 166

Patent

active

040142108

ABSTRACT:
In a device for measuring ultrasonically the flow of gas, for example the air flow in the induction duct of an internal combustion engine, an upstream piezo-electric transducer is located in a plenum chamber upstream of a measurement duct and a downstream piezoelectric transducer is located in a seating in the measurement duct. To reduce vorticity in the gas flow the upstream transducer is seated at the apex of a frusto-conical element in the inlet chamber and the seating of the downstream transducer is tapered externally.

REFERENCES:
patent: 3468157 (1969-09-01), Burk et al.
patent: 3817098 (1974-06-01), Brown

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