| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter free from enclosure noise. SOLUTION: In this ultrasonic flowmeter 10, a measurement body 30 is divided into a first body constituent 61 including one ultrasonic sensor 50, and a second body constituent 62 including the other ultrasonic sensor 50, with the first and second body constituents 61 and 62 fixed in and combinedly held by outer sleeves 11, respectively. Since a gap G1 for ultrasonic wave transmission prevention is provided between combining surfaces of the first and second body constituents 61 and 62, the enclosure noise propagating through a pipe wall of a measurement pipe 31 is suppressed or eliminated. This allows the prevention of deterioration in measurement accuracy owing to the enclosure noise. COPYRIGHT: (C)2011,JPO&INPIT |
