| 摘要 |
PURPOSE:To easily produce the average value information from the time series information by turning the time series signal into a sound wave via an input transducer, transmitting this sound wave through one of both ends of a medium to the other end, and turning again the sound wave reflected by the other end of the medium into an electronic signal in order to output this electric signal through an output electrode. CONSTITUTION:The time series signal received via an input terminal 1 is turned into a sound wave by a transducer 6 set at the input side and transmitted to one of both ends of a medium 7 from the other. The transmitted sound wave is turned again into an electric signal by a transducer 8 set at the output side and taken out via an output terminal 10. This electric signal is amplified by an amplifier 12 and then applied again to the transducer 8 and turned again into a sound wave. This sound wave is adversely transmitted through the medium 7 to one of both ends from the other of the medium 7. Then the sound wave is taken out to the outside as an electric signal through an output electrode 9 in the timing where the sound wave has a large amplitude through the medium 7. |
