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Title: High-Reliability Vortex Flow Meter With Dual-Coupled Ultrasonic Sensors
Author: Hiroshi Ohashi, Kuniyoshi Okamoto
Source: Flomeko 2000
Year Published: 2000
Abstract: Confirmation of measuring technology for flow rate of high pressurized gas is required. So, in order to build up measuring technology keeping High Sensitiveness, Wide Rangeability, High Accuracy, up to now, we have developed a vortex flow meter for gas with one coupled ultrasonic sensors. And we confirmed this effectiveness by testing on an existing gas pipe line with high pressure. This type of vortex flow meter has a hole inside the bluff body situated in the flow, and the change of flow which are generated by vortexes lead to this hole. Ultrasonic sensors situated both side of this hole detect the change of flow in the hole.

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