Measurement principle and characteristics of gas turbine flowmeter

Abstract: The information on the measurement principle and characteristics of gas turbine flowmeters is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Gas turbine flowmeter is a commonly used flowmeter product, which has the advantages of high precision, good repeatability, simple structure, small volume, light weight, small pressure loss, long life, simple operation and convenient maintenance. Today we mainly introduce the gas vortex. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the details of the measurement principle and characteristics of the gas turbine flowmeter. Gas turbine flowmeter is a commonly used flowmeter product, which has the advantages of high precision, good repeatability, simple structure, small volume, light weight, small pressure loss, long life, simple operation and convenient maintenance. Today we mainly introduce the measurement principle and characteristics of gas turbine flowmeter, hoping to help everyone. Measurement principle of gas turbine flowmeter The fluid flows through the casing of the gas turbine flowmeter. Since the blades of the impeller have a certain angle with the flow direction, the impulse of the fluid makes the blades have rotational torque. After overcoming the friction torque and fluid resistance, the blades rotate, and after the torque is balanced The rotating speed is stable. Under certain conditions, the rotating speed is proportional to the flow rate. Since the blade has magnetic permeability, it is in the magnetic field of the signal detector (composed of magnetic steel and coils). The rotating blade cuts the magnetic field lines and changes periodically. The magnetic flux of the coil induces an electrical pulse signal at both ends of the coil. This signal is amplified and shaped by the amplifier in the gas turbine flowmeter to form a continuous rectangular pulse wave with a certain amplitude, which can be transmitted to the display instrument to display the fluid flow. Instantaneous flow or total. Within a certain flow range, the pulse frequency f is proportional to the instantaneous flow rate Q of the fluid flowing through the turbine flow sensor. The flow equation is: q=3600*(f/k) In the formula: f——Pulse frequency [Hz] k——The meter factor of the sensor [1/m3], given by the checklist. Q——Instantaneous flow of fluid (under working condition) [m3/h] 3600——Conversion coefficient The coefficient of each gas turbine flowmeter is filled in by the manufacturer in the verification certificate, and the k value is set into the matching display gas turbine flowmeter to display the instantaneous flow rate and cumulative total. Gas turbine flowmeter features small pressure loss, impeller with anti-corrosion function; using advanced ultra-low power consumption single-chip microcomputer technology, the whole machine has strong function, low power consumption and superior performance. Smart flow display with nonlinear accuracy compensation. Correction formula accuracy is better than±0.02%. The instrument coefficient can be set online by the button, and can be displayed on the LCD screen. The LCD screen is intuitive and clear, and has strong reliability. EEPROM is used to protect the accumulated flow and instrument coefficient from power failure, and the protection time is more than 10 years. The high-performance MCU central processing unit is used to complete the data The collection, processing and display output, the accumulated flow and the instantaneous flow are displayed on the same screen. The convenient man-machine interface is realized, and the data transmission is carried out in the form of standard 485. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Measuring Principles and Characteristics of Gas Turbine Flow Meters'

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