Pipeline integrity monitoring using system impulse response
- Univ. of Idaho, Moscow, ID (United States). Dept. of Civil Engineering
The impulse response function of a system can be used to predict, detect, and diagnose abnormality in the system. The impulse response function can be extracted indirectly using cross-correlations between a low amplitude pseudo-random binary disturbance and the system`s output. This method is applied to pipeline hydraulics as a means of integrity monitoring. The ability of the method to extract a pipeline`s impulse response function with the presence of data noise is demonstrated. Characteristic changes in the impulse response function as a result of a leak or a dent are identified. Examples show that the impulse response function can be used to detect and locate a leak. However, the impulse response is not sensitive to detect small to moderate-sized dents. The procedure of extracting the pipeline`s impulse response function by cross-correlations is noise-tolerant and can be conducted in the background without interfering pipeline operations.
- OSTI ID:
- 434129
- Report Number(s):
- CONF-9606127--; ISBN 0-7918-1767-9
- Country of Publication:
- United States
- Language:
- English
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