Non-intrusive ultrasonic liquid-in-line detector for small diameter tubes

Patent · 01 January 1982

OSTI ID:864417

Piper, Thomas C ^[1]

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1. Idaho Falls, ID

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.

• Research Organization: ALLIED CHEMICAL CORP
• DOE Contract Number: AC07-76ID01540
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4361041
• OSTI ID: 864417
• Country of Publication: United States
• Language: English

Related Subjects

/73/
072
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amplitude
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crystal
crystals
deleting
detector
diameter
diameter tube
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disclosed
inch
indicates
line
liquid
liquid-in-line
liquid-in-line detector
non-intrusive
non-intrusive ultrasonic
pairs
piezoelectric
piezoelectric crystal
piezoelectric crystals
pipe
presence
received
techniques
tone
transmitted
tubes
ultrasonic
ultrasonic liquid
ultrasonic liquid-in-line
ultrasonic technique
ultrasonic techniques