Flowmeter |
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| 申请号 | JP11252582 | 申请日 | 1982-07-01 | 公开(公告)号 | JPS595917A | 公开(公告)日 | 1984-01-12 |
| 申请人 | Oval Eng Co Ltd; | 发明人 | OSADA SHIGEYOSHI; | ||||
| 摘要 | PURPOSE:To make it possible to measure a small amount of a flow rate by detecting the number of vibrations of a flexible, belt-shaped band piece, which is provided in a bent form in a flow path in a cabinet, and whose both ends are fixed to rods at the upstream and the downstream. CONSTITUTION:A hollow cabinet 1 has a flow path, whose cross section is rectangular. In the cabinet 1, a belt-shaped band piece 2 comprising a thin flexible material such as synthetic resin film is bent and enclosed. Both ends of the band piece 2 are fixed to fixing rods 2a and 2b at the upstream and the downstream. The axial length of the band piece 2 is made longer than the length between the rods 2a and 2b. A vibration number detector 3 is attached to the side wall of the cabinet 1. When the band piece 2 is steadily vibrated and a state 2' is changed to a state 2''' through a state 2'', the amount of fluid at a part surrounded by DECB is sent to the downstream side. Therefore, the flow rate can be obtained by the number of vibrations. The samll amount of the flow rate can be detected by making the band piece 2 thin and light weight. | ||||||
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