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.
关键词
风量罩/风速/校准装置/风量/超声波流量计
Key words
air volume hood/wind speed/calibration device/air volume/ultrasonic flowmeter
维普
万方数据