Sensor technology for internal inspection systems. Topical report, November 1990-November 1991

Technical Report · Wed Jul 01 00:00:00 EDT 1992

OSTI ID:6993347

Campbell, B K; Stafford, J E

IGT designed, fabricated, and tested a breadboard acoustic receiver module as one car of several on the GRI MOUSE. The acoustic receiver will be used to pinpoint gas leaks from within the pipe by detecting the leak sound and analyzing it as a function of MOUSE location in the pipe. Because gas leaks create sound that gets louder as the receiver approaches the leak, the MOUSE may accurately locate leaks rapidly and inexpensively. The first-year effort demonstrated laboratory feasibility to locate simulated leaks of about 60 SCF/h. Both condenser microphones and piezoelectric film were mounted inside a MOUSE car and its ability to detect leaks was tested. Phase I successfully demonstrated that the breadboard acoustic sensor locates leaks in no line flow conditions by recording sound amplitude changes in specific frequency ranges, while operating in conjunction with the GRI MOUSE. Some flow tests indicated that flow noise was substantial and may hamper leak pinpointing in high line flow situations. IGT recommends more critical examination of flow noise and leak sensitivity issues for acoustic sensors.

• Research Organization: Institute of Gas Technology, Chicago, IL (United States)
• OSTI ID: 6993347
• Report Number(s): PB-93-101020/XAB; CNN: GRI-5089-271-2082
• Resource Relation: Other Information: Sponsored by Gas Research Inst., Chicago, IL
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
LEAK DETECTORS
TECHNOLOGY ASSESSMENT
NATURAL GAS DISTRIBUTION SYSTEMS
LEAK TESTING
ACOUSTIC DETECTION
DATA ACQUISITION
DESIGN
FABRICATION
FLOW RATE
GAS FLOW
LEAKS
NOISE
PERFORMANCE TESTING
PIEZOELECTRICITY
SAFETY
ACOUSTIC MEASUREMENTS
CHARGED PARTICLE DETECTION
DETECTION
ELECTRICITY
FLUID FLOW
RADIATION DETECTION
TESTING
032000* - Natural Gas- Transport
Handling
& Storage