Ultrasonic measuring system with isolation means

Details Ultrasonic measuring system with isolation means Ultrasonic measuring system with isolation means

1975-11-07

1977-01-25

Gill, James J.

Measuring and testing

Volume or rate of flow

System

G01F 166

Patent

active

040044610

ABSTRACT:
A device for performing ultrasonic measurements on liquid flowing within a conduit having walls of relatively high acoustic impedance material. The conduit is split into two separate segments with the emitting transducer in one segment and a receiving transducer in the other segment. The space between segments is filled with a sealant material having relatively low acoustic impedance characteristics to provide an acoustic mismatch and hence attenuation to ultrasonic energy traveling through the conduit wall from the transmitter to the receiver. Because of the separation between segments ready access is provided to the internal walls of the conduit, allowing transducer configurations to be employed, which configurations require machining or assembly to be performed on the interior walls.

REFERENCES:
patent: 3204458 (1965-09-01), Gillen
patent: 3357243 (1967-12-01), Woodcock

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