Why should the vibration disturbance on site be considered when installing a mass flow meter?

Why should the vibration disturbance on site be considered when installing a mass flow meter? The Coriolis mass flowmeter is a flow meter made according to the principle of Coriolis (hereinafter referred to as Cory force). When working, the measuring tube should vibrate at a fixed frequency to simulate the rotation of the measuring tube along the tube axis, thereby generating a Coriolis force to achieve the purpose of measuring flow. The frequency of this vibration is the natural frequency of the measuring tube structural system. Therefore, when installing and designing a mass flowmeter, it should be ensured that the installation site of the mass flowmeter sensor avoids interference with vibration sources. If external vibration disturbance cannot be avoided for some reason. The following measures can be taken: Find out the vibration direction of the external disturbance source. When installing the mass flowmeter sensor, keep the vibration direction of the sensor measuring tube perpendicular to the vibration direction of the interference source. It can effectively reduce the impact of external interference on the flowmeter work. If possible, allow the pipe to make several more right-angle turns between the source of vibration (such as pumps, motors, etc.) to the location where the flowmeter sensor will be installed. It also reduces the impact of sources of interference. The flange of the flowmeter can be supported independently, and the connection between the flowmeter sensor and the pipeline can use soft connections (such as rubber soft connections or bellows buffer joints). Due to the Coriolis force, the measuring tube of the mass flowmeter needs to vibrate during operation. Therefore, during the installation process, try to keep the degree of freedom of the measuring tube part of the sensor, and do not add constraints to the housing. In particular avoid virtual contact between the sensor housing and other objects. Because the shell that is in virtual contact with other objects will knock against external objects due to its own vibration during work. The flowmeter cannot work stably.

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