Non-intrusive ultrasonic liquid-in-line detector for small diame

Details Non-intrusive ultrasonic liquid-in-line detector for small diame Non-intrusive ultrasonic liquid-in-line detector for small diame

1980-09-24

1982-11-30

Ciarlante, Anthony V.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

73599, G01N 2902

Patent

active

043610412

ABSTRACT:
An arrangement for deleting liquid in a line, using non-intrusive ultrasonic techniques is disclosed. In this arrangement, four piezoelectric crystals are arranged in pairs about a 0.072 inch o.d. pipe. An ultrasonic tone burst is transmitted along the pipe, between crystal pairs, and the amplitude of the received tone burst indicates the absence/presence of liquid in the pipe.

REFERENCES:
patent: 3630307 (1971-12-01), Kamps et al.
patent: 3744301 (1973-07-01), Arave
patent: 4212201 (1980-07-01), Hirsch et al.

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