Measuring method of scale vortex frequency of vortex flowmeter

Abstract: the scale vortex frequency of vortex flowmeter test method of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Testing method of vortex frequency of vortex flowmeter are basically has the following two kinds. Way 1: testing velocity variation in effect at the time of the vortex, using thermal sensor and ultrasonic beam, vortex in body can be solid cylindrical, rectangular column, triangular prism and T composite column. Party. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a scale vortex frequency of vortex flowmeter test method of the article for details. Testing method of vortex frequency of vortex flowmeter are basically has the following two kinds. Way 1: testing velocity variation in effect at the time of the vortex, using thermal sensor and ultrasonic beam, vortex in body can be solid cylindrical, rectangular column, triangular prism and T composite column. Method 2: detection vortex at the time of the pressure change, the strain components, piezoelectric element, vibration magnetic sensor, photoelectric element and elastic element/capacitance component, elastic element/piezoelectric element, etc. Vortex happens can be hollow cylindrical body, triangular prism, t-shaped column and all kinds of composite column. High sensitivity, thermal measurement is suitable for low temperature ( < 200℃） And low density of the gas test scene, but because of thermistor with glass encapsulation, weaker, dirt and harmful substances in the open and vulnerable to the fluid and the effects of particulate matter, so should also be measured medium sufficient clean liquid or gas. Piezoelectric element to bear or endure dirty, and thus has a wide application, low density, low velocity of gas, but the test environment is unfavorable choose larger vibration occasions. Medium temperature range for - 32～110℃。 At room temperature, the piezoelectric ceramic is insulation, impedance is l0 ~ l00M & Omega; , but if you work in the condition of 300 ℃, the impedance will drop to 1 m & Omega; , or even tens of thousands of European, output signal decreases, leads to the deterioration of the measuring system of low, so can not be used in high temperature medium. The vibration resistance of vortex flowmeter is stronger, but the medium temperature is not higher than 200 ℃, if beyond this range, the ultrasonic probe will be damaged. Also cannot be used for ultrasonic vortex flowmeter has obvious pulsation measured medium, such as the export of reciprocating compressor fluid, because it has a high sensitivity to small flow. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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