Research on a Calibration Standard Device for Air Flow Hood
A low cost calibration standard device of air volume hood is designed,which can stabilize the air volume of standard section and measuring section at the same time under the condition of high air volume,so as to complete the accurate calibration and measurement of various air volume hoods.A standard ultrasonic flowmeter with three pairs of probes is selected as the main standard;The test data is collected automatically by PLC programmable logic controller and verified by test.Experimental results show that the device and calibration method are operable.
air volume hoodwind speedcalibration deviceair volumeultrasonic flowmeter
万方数据
维普
