MULTILAYER CHANNEL MEMBER OF ULTRASONIC FLUID MEASURING DEVICE AND ULTRASONIC FLUID MEASURING DEVICE

摘要

A multilayer channel member of an ultrasonic fluid measuring device having an improved measurement accuracy of an average flow rate and an ultrasonic fluid measuring device are provided. A multilayer channel member (30) disposed in a prismatic measuring channel (14a) of an ultrasonic fluid measuring device (10) is partitioned into flat channels (14e) by means of a partition plate (32) attached to a frame (31) arranged along the flow. The partition plate (32) faces the inner surfaces (15f, 17a) of the measuring channel (14a). Therefore, since the partition plate (32) is exposed and faces the inner surfaces (15f, 17a), the space between the exposed partition plate (32) and the inner surface (15f) and the space between the exposed partition plate (32) and the inner surface (17a) are the uppermost flat channel (14e) and the lowermost flat channel (14e), respectively. The conventional problem that fluid flows into the gap between the frame (31) constituting the multilayer channel member (30) and the inner surface (15f) and the gap between the frame (31) and the inner surface (17a) and consequently the measurement accuracy degradation does not arise, and thus the measurement accuracy is improved.