| 摘要 |
PURPOSE: A portable airflow meter for measuring discharge air is provided to promptly and precisely measure the amount of the air discharged from an air duct and to offer convenience in use by making an airflow meter portable. CONSTITUTION: A portable airflow meter for measuring discharge air comprises a cylindrical case(10) consisting of a cylindrical rear case part(11) and an air inlet, a flexible duct(20) connected to the air inlet of the cylindrical case and a vent(1), a rectifying unit(30) installed in the front portion of the cylindrical case and rectifying the entering air, a nozzle(40) installed behind the rectifying unit, a static pressure sensor(50) installed in the front end portion of the flexible duct, differential pressure sensors(51) installed in the front and rear portions of the nozzle and measuring the pressure difference of the front and rear portions of the nozzle, a temperature sensor(52) measuring the temperature of flowing air, a humidity sensor(53) measuring the humidity of the flowing air, and a blower(60) installed in the end portion of the cylindrical case and discharging air through an air outlet.
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