Talking about the Structure and Principle of Capacitance Target Flow Meter

Abstract: Talking about the structure and principle of capacitive target flow meter information is provided by excellent flow meter and flow meter manufacturers and quotation manufacturers. 1. Structure: Capacitance target flowmeter is mainly composed of measuring tube (casing), new capacitive sensor, accumulative display and output parts. According to different media and working conditions, the appropriate capacitive force sensor must be selected, so users can provide accurate measurement. More flowmeter manufacturers select models and price quotations. You are welcome to inquire. The following is a brief introduction to the structure and principle of capacitive target flowmeters. 1. Structure: Capacitive target flowmeter is mainly composed of measuring tube (shell), new capacitive sensor, accumulative display and output parts. According to different media and working conditions, the appropriate capacitive force sensor must be selected. Therefore, the user provides accurate measurement objects and parameters, and the manufacturer selects the appropriate capacitive force sensor is the key to accurate measurement of the product. 2. Working principle: When the medium flows in the measuring tube, the pressure difference generated by its own kinetic energy passing through the choke (electronic target) has a force on the choke. The magnitude of the force is related to the flow rate of the medium. is proportional to the square of , and its mathematical expression is as follows: F=CdAP·V2/2………………(1) In the formula: F——The force on the choke (Kg) Cd——Object drag coefficient A——Axial projection area of ​​the blocking piece to the measuring tube (mm2) P——Medium density under working conditions (Kg/m3) v——The average flow velocity of the medium in the measuring tube (m/s) The force F received by the blocking member (target) is transmitted to the capacitive force sensor through the rigidly connected transmission member (measuring rod), and the capacitive force sensor generates a voltage signal output: V =KF………………(2) In the formula: V——Capacitive force sensor output voltage (mV), K——proportionality constant, F——The force (Kg) of the blocking element (electronic target) is thus, the corresponding instantaneous flow and cumulative total can be obtained after the voltage signal is pre-amplified, AD converted and processed by the computer. Product parameters Diameter: DN15～DN3000mm Nominal pressure: 0.6～42MPa Working temperature: -200℃～+500℃ Accuracy:±0.2～±1.5%FS range ratio: 1:10 Shell: carbon steel; stainless steel (or according to user requirements) Power supply: built-in 3.6VDC lithium battery (change every two years, without signal output); external supply 24VDC (with signal Output) Output signal: 4~20mA two-wire system; pulse 0~1000HZ; RS232/RS485 (or negotiated according to user requirements) Protection class: IP65; IP67 BET05-06 meter display: cumulative flow; instantaneous flow; working condition temperature; working condition pressure (only for temperature and pressure compensation type); rod-shaped full scale percentage; fault self-check connection flange: national standard (GB/T) series; chemical (HG) series; mechanical (JB/T) series; can also be negotiated and produced according to customer requirements. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'On the Structure and Principle of Capacitance Target Flow Meter'

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