| 摘要 |
An acoustic displacement flowmeter uses a high-compliance acoustic-type displacement transducer to measure fluid flow accumulated by temporarily restricting the flow of a fluid along a path. The displacement transducer signal, representative of fluid flow rate, is integrated after an initial settling period elapses, and the integrated signal is periodically sampled. The number of samples taken during a measurement cycle depends upon the slope of the integrated signal and the maximum sample period permitted. The samples are summed and the actual flow rate is computed by a microcomputer.
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