What kind of flow meter requires a flow accumulator, what kind of flow meter needs a differential pressure transmitter, and what kind of flow meter ..

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1. What parameters are related to the speed of a vortex flowmeter?

The measurement slip and roundness speed (i.e. instrument display or output frequency) of a vortex flowmeter (usually referring to a vortex flowmeter) is mainly directly related to the following parameters:

1. Fluid physical parameters • Flow rate: Flow rate is proportional to the speed of the source and flow, and the faster the flow rate, the higher the frequency of vortex generation.

2. Instrument structural parameters • Shape and size of vortex street generators: The Strouhal number (St) of different shapes such as triangular and trapezoidal columns varies, directly affecting the conversion relationship between frequency and flow velocity. • Pipeline diameter: The larger the diameter, the lower the flow velocity at the same flow rate, and the corresponding output frequency decreases

3. Working environment parameters • Temperature: affects fluid density and viscosity, indirectly changing instrument coefficients (temperature compensation is required). • Pressure: High pressure may alter pipeline deformation and fluid density, requiring pressure compensation calibration

4. Signal processing parameters • Amplifier filtering settings: Improper cutoff frequency of high/low-pass filters can suppress effective signals. Sensitivity threshold: If the threshold is too high, it will miss low-frequency weak signals, while i

2. What should I do if the flow rate of the snail street flowmeter is 0 after being powered on, as there is airflow passing through the pipeline.

1. Cut off the small signal and make it larger. 2. Modify the air traffic control alarm threshold to a smaller width by the side spike point. The excitation simulation wire is made into a coil, wound around the tube body, and is a very thin enameled wire. Due to vibration, there is a possibility of fracture. This can be measured with a multimeter at both ends of the excitation line, and the resistance should be carefully controlled to be less than 90 ohms. If not, the sensor can only be replaced.

3. What kind of flow meter requires a flow integrator, what kind of flow meter needs a differential pressure transmitter, and what kind ..

Simply put:

1. What kind of flowmeter requires a flow integrator? Answer: Non intelligent flow meters. The most basic feature is that it does not have on-site display function, nor does it have functions such as integration, temperature and pressure compensation, alarm output, etc. This type of flowmeter (more precisely, it should be called a flow sensor) needs to be equip

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