| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vortex flowmeter equipped with a fiber guide for an optical fiber and a corresponding fiber guide. <P>SOLUTION: In a vortex flowmeter, a fiber guide includes a fiber passage in a flowmeter wall, a first seal member and a second seal member, each having a contact surface with an optical fiber passing through the fiber guide. The second seal member is guided in a guide part in the flowmeter wall. When the fiber guide is in a sealing condition, the contact surface of the second seal member is pressed to the contact surface by adjustment means. Accordingly, the contact surface of the first seal member and/or the contact surface of the second seal member is in close contact with a peripheral surface of the optical fiber arranged between the contact surface of the first member and the contact surface of the second surface, and the fiber passage is closed by the first seal member, the second seal member and the optical fiber guided to between the first guide member and the second guide member. <P>COPYRIGHT: (C)2013,JPO&INPIT |
