| 摘要 |
PURPOSE:To prevent the inclusion of external vibration into a pressure signal as a noise, when minutely fluctuating pressure is detected by a vortex flowmeter, by propagating the electric signal detected by detecting elements through conductors having small elastic modulus. CONSTITUTION:A thin cylinder 2 with a pressure receiving plate 5 is made to penetrate through the central part of an attaching flange 1, which is fixed to a vortex flowmeter 20. Elements 4, which detect fluctuating pressure acting on the pressure receiving plate 5, are fixed to the cylinder 2. The detected signal is guided to the outside of the cylinder 2 through conductor wires 7 and connected to a conductor wires 8 having a small elastic modulus. Conductor lead wires 11, which are connected to the end parts of the conductor wires 8 in a terminal block 10, are connected to an amplifier (not shown) in a converter box 40. The cylinder 2 is enclosed by a flexible cylinder member 3, which is fixed to the flange 1. The member 3 and the block 10 are fixed by a sheath wire 9. One end of a protecting tube 30 is fixed to the vortex flowmeter. The wire 9 and the member 3 are enclosed by the protecting tube 30. The peripheral surface of the block 10 is held by the tube 30 so that the block 10 is freely slidden. |
