| 摘要 |
In an ultrasonic flow meter device of the present invention, a compressive conductive fastener member (9) including conductive parts (25a, 25b) is retained between a casing (1) having a fluid passage (2) in which a fluid which is a measurement target flows; ultrasonic transmitters/receivers (6, 7) mounted to the casing (1), and a control printed board (8) disposed to face the ultrasonic transmitters/receivers (6, 7), and in this state, the control printed board (8) is fastened. Thereby, the ultrasonic transmitters/receivers (6, 7) are electrically connected to the control printed board (8) without the use of lead wires. A cost increase can be suppressed, and an influence of an outside noise can be mitigated because of omission of the lead wires. Therefore, reliability of the ultrasonic transmitters/receivers (6, 7) can be improved.
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