采用先进数控设备加工传感器的表体和旋涡发生体等，确保加工精度，从而使零部件(特别是旋涡发生体)的通用性强，真正做到不会因零部件的更换而影响传感器的重复性和精度；能产生强大而稳定的涡街信号。 Dongxiang Intelligent Vortex Flowmeter uses advanced numerical control equipment to process the sensor body and vortex generator to ensure processing accuracy, so that the universality of parts (especially the vortex generator) is strong, and it will not really be caused by parts. The replacement of the sensor affects the repeatability and accuracy of the sensor; it can generate a strong and stable vortex signal.
The radiator structure adopts a horizontal structure, which transfers less heat to the enlarged part than a flow meter with a vertical radiator structure, and the heat dissipation area is large, and the heat dissipation is faster, which makes the sensor more reliable and has a longer life. long.
Dongxiang instrument technicians have designed the best probe shape, wall thickness, height, probe rod diameter and the corresponding piezoelectric crystals through a lot of waveform analysis and spectrum analysis on the vortex flowmeter for a long time. Advanced CNC lathes are used for processing to ensure the accuracy of coaxiality and smoothness of processing, and to cooperate with special processes to overcome the common problem of the inherent self-oscillation frequency of the vortex flowmeter on the signal. This is the unique technical advantage of Xudong Instrument in making vortex flowmeters.
传感器的探头是由一对差动电容组成。 The probe of a capacitive vortex flowmeter sensor consists of a pair of differential capacitors. The vortex force generated by the vortex generator alternately acts on both sides of the probe, so that the differential capacitance in the probe changes, and is converted into a flow electric pulse signal by an amplifier. The unique internal structure makes the probe have good anti-vibration performance and short-circuit resistance. The base body of the probe capacitor plate is made of imported high temperature resistant material, which has high temperature resistance. The intelligent sensor has the universality of gas and liquid, the automatic pass band tracking, no need for potentiometers or toggle switches to adjust the frequency band and sensitivity, no zero drift, free range setting, and truly realize field-free debugging. This circuit can suppress different vibration frequencies, enhance anti-vibration performance, and have a linearization function.
是根据卡门涡街原理来测量流量的一种应力式涡街流量计，信噪比大，灵敏度高，抗振性强。 Dongxiang Intelligent Vortex Flowmeter is a stress-type vortex flowmeter that measures flow based on the Carmen vortex street principle. It has a large signal-to-noise ratio, high sensitivity, and strong vibration resistance. The signal circuit adopts single-chip microcomputer technology for data processing. The CPU unit, storage unit, display unit, communication unit and other functional modules are packaged in the amplifier circuit. It has RS485 communication function and has very stable zero point and accuracy. It is widely used to measure the volume flow and mass of superheated steam, saturated steam, compressed air and general gases and liquids.