| 摘要 |
PURPOSE:To enable the measurement of the flow amount of the fluid in a pipe having a minute caliber, by attaching a transmitting vibrator and a receiving vibrator to the support in the fluid introducing port or discharge port side provided to one end side of the pipe. CONSTITUTION:A first support 12 having a fluid introducing port 9 and a second support 13 having a fluid discharge port 14 are connected by a pipe 10 and transmitting and receiving vibrators 7, 8 are attached to one side of either one of the supports 12, 13, for example, the support 12. By this structure, ultrasonic waves are emitted to the fluid in the pipe 10 from the vibrator 7 and the reflected ultrasonic waves by the scattered materials 6 in the fluid are received by the vibrator 8 and a flow speed can be calculated from Doppler shift frequency. |
