The compressed air flow meter method to detect vortex frequency scale

Abstract: the compressed air flow meter method to detect vortex frequency scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Compressed air flow meter has the advantages of other flowmeter it too got rapid development since the seventy s, according to relevant data shows, Japan, Europe and the United States and other developed countries now use a sharp rise in the proportion of the compressed air flowmeter, has been widely used. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the compressed air flow meter method to detect vortex frequency scale, the article details. Compressed air flow meter has the advantages of other flowmeter it too got rapid development since the seventy s, according to relevant data shows, Japan, Europe and the United States and other developed countries now use a sharp rise in the proportion of the compressed air flowmeter, has been widely used in various fields, will be dominant in the future flow meters, is the first choice for the current domestic flow meter. Compressed air flow vortex frequency detection method mainly has the following two kinds: one way: 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. Compressed air flow meter of the vibration resistance 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. This article from: steam flowmeter. 。 Cn gas flowmeter. 。 Com above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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