| 摘要 |
The invention relates to the metering of water, being especially useful for agricultural purposes and other applications. An integrated water meter and cut-off valve with electronic controls is provided. The integrated water meter comprises a hollow body having an inlet port and an outlet port for a fluid and a passage connecting the ports; a generator of ultrasonic pulses in operational communication with the body, operationally connected to a US (ultra-sonic) transmitter transducer and a US receiver transducer, and a diaphragm valve inside the passage in fluid communication with the passage.
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