Pulse vortex flowmeter | What signal does the vortex flow sensor output

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What is the difference between the output form of vortex flowmeter, on-site display and pulse output?

Display: Numerical values are displayed through on-site display units, such as LCD digital tubes. This method can only be viewed on site and cannot be read or calculated. Pulse: Cumulative flow is represented by pulses, for example, each pulse represents a simple 0.1 M3/H, so 10 pulses are 1 M3/H. This method requires a counter to accumulate.. Only cumulative flow 4-20mA can be calculated: it can only represent instantaneous flow 4-20 represents 0-10 M3/h. If the current output is 12MA, the instantaneous flow rate is 5 M3/h. This method can only measure instantaneous flow and requires a transmitter to convert 4-20 into the required value. 2. What signal does the vortex flow sensor output? 3. Flow calculation of the vortex flowmeter. The flow calculation of the vortex flowmeter is mainly achieved through the following steps and formulas: Measuring the frequency of vortex occurrence: The vortex flowmeter first measures the frequency of vortex occurrence, which is directly related to the average flow velocity of the measured medium. The formula for calculating frequency is: f=Sr * U1/d=Sr * U/m, where Sr is the Strouhal number, reflecting the strength of the vortex; U1 is the average flow velocity on both sides of the vortex generator; D is the width of the upstream face of the vortex generator; M is the ratio of the bow shaped area on both sides of the vortex generator to the cross-sectional area of the pipeline. Calculate volumetric flow rate: The formula for calculating volumetric flow rate Li Zao is: qv=π * D2 * U/4=π * D2 * md * f/4 * Sr, where D is the diameter of the body. By using this formula, the

measured vortex frequency can be converted into actual volumetric flow rate. Determination of instrument coefficient: The instrument coefficient hall disturbance K, which corresponds to the number of pulses per cubic meter of flow, is an important parameter for vortex flowmeters. The formula for calculating the instrument coefficient K is: K=)? 1. It reflects the characteristics of the flow meter. Considering calibration and compensation under different conditions: In practical applications, vortex flowmeters need to measure different parameters under standard and working conditions, such as volume flow rate, absolute pressure, thermodynamic temperature, and gas compression coefficient. These data help calibrate and compensate for the performance of flow meters under different conditions, ensuring measurement accuracy. In summary, the vortex shedding flowmeter achieves accurate measurement of flow rate by measuring vortex frequency, combined with pipeline size and specific coefficients. Meanwhile, considering calibration and compensation under different conditions is also an important step in ensuring measurement accuracy.

4. What is the difference between vortex flowmeter and turbine flowmeter? "

There are obvious differences between vortex flowmeter and turbine flowmeter in terms of working principle and applicable working conditions, as follows: different working principles. Vortex flowmeter: works according to the Karman vortex principle.

. When the fluid passes through the vortex flow transmitter in the pipeline, two columns of vortices will alternate up and down behind the vortex generator in the triangular vortex column, and the release frequency of the vortices is related to the average velocity

Pulse vortex flowmeter | What signal does the vortex flow sensor output

What is the difference between the output form of vortex flowmeter, on-site display and pulse output?

4. What is the difference between vortex flowmeter and turbine flowmeter? "

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