How to identify vortex flow meter scale quality is good or bad?

Abstract: how to identify scale vortex flowmeter is good or bad quality? Information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Vortex street flowmeter product is composed of vortex flow sensor and display instrument, can be used in almost all of gas, liquid and steam flow measurement, measurement and control. Vortex flow sensor without activity, good repeatability, high measurement precision, the output signal. More flow meter manufacturers choose model price quote you are welcome to inquire, here is how to identify vortex flow meter scale quality is good or bad? The article details. Vortex street flowmeter product is composed of vortex flow sensor and display instrument, can be used in almost all of gas, liquid and steam flow measurement, measurement and control. Vortex flow sensor without activity, good repeatability, high measurement precision, the output signal frequency is proportional to the flow rate, etc, its market scale expands rapidly, and the market share is increasing every year. The key technology of vortex flow sensor design lies in three aspects: 1, sensors, table design. When the fluid passes through, produce stable karman vortex street signal; 2, the design of the sensor probe. Piezoelectric crystal encapsulation within the probe, the karman vortex street signal ACTS on the probe, the probe of the piezoelectric crystals electrical signal into a vortex street the vortex signal; 3, amplifying circuit design. The vortex signal amplification, plastic into the corresponding pulse signal of vortex flowmeters are how to distinguish good and bad quality? Small make up today will tell everyone: a, probe: there are two pieces of piezoelectric crystal, used in vibration interference, used to detect. Probe is lead test piece two fuses, probe shell by the vortex tube wall body inserted, through fixed flange fixed on the vortex tube wall body. Probe under 300 ℃ can work normally, zui high resistance to 350 ℃. If the temperature is high, will damage the seal porcelain body, make the probe performance degradation, even damage the probe. We can use a multimeter & other; × 10k” File inspection probe two fuses, shall be the infinity, if there is resistance, probe performance degradation; If under tens of thousand ohms, probe damage. 2, circuit boards, its design is good or not directly related to the vortex signal generated by correctly or not, we can usually generated when the oscilloscope see the flowmeter in the work mode. Other sensors in the production of vortex flowmeter and the table body sealing is quite important, bad sealing table experience leakage, to crackdown test before they go out, and through the calibration device for flow calibration. If under the condition of unsteady flow, vortex flowmeter to measure vortex at the scene of the voltage is stable at around 12 v, if is in measuring the zero line and the frequency of the pulse, look at the stable, and then in diagonal measurement circuit board, usually at about 3 v. Zui after the measurement of the vortex street sensor with two lines of letter can usually oscilloscope see the wave type produced by flowmeter at work. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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