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    • 5. 发明申请
    • APPARATUS AND A METHOD FOR PROVIDING A TIME MEASUREMENT
    • 装置和提供时间测量的方法
    • US20160161525A1
    • 2016-06-09
    • US14953709
    • 2015-11-30
    • Gill Corporate Limited
    • George EvansAnthony Charles Robert SticklandOliver Stewart BlacklockMichael John Gill
    • G01P5/24
    • G01P5/245G01F1/662G01H5/00G01N29/024G01N2291/02836G01N2291/045G01N2291/048
    • Apparatus for measuring the time taken for sound to travel a predetermined distance, including a transmitter electroacoustic transducer for transmitting an acoustic signal, and a receiver electroacoustic transducer, spaced from the transmitter electroacoustic transducer, for receiving the transmitted acoustic signal. The apparatus has a sound reflective surface spaced from the receiver electroacoustic transducer, so the latter also receives a reflection of the acoustic signal, and timing electrical circuitry connected to the receiver electroacoustic transducer to provide a measure of the time delay between the respective receptions by the receiver electroacoustic transducer of the acoustic signal and its reflection. The invention extends to a flowmeter (10) which incorporates such apparatus and an anemometer which incorporates such apparatus. The apparatus can be adapted to measure the speed of sound. The invention extends to the corresponding methods which make use of such apparatus.
    • 用于测量声音行进预定距离所需时间的装置,包括用于发送声信号的发射器电声换能器和与发射器电声换能器间隔开的接收器电声换能器,用于接收所发射的声信号。 该装置具有与接收器电声换能器隔开的声音反射表面,因此后者还接收声信号的反射,以及连接到接收器电声换能器的定时电路,以提供相应接收之间的时间延迟的量度 接收器电声换能器的声信号及其反射。 本发明延伸到包含这种装置的流量计(10)和包含这种装置的风速计。 该装置可以适于测量声音的速度。 本发明延伸到使用这种装置的相应方法。