AIR FLOW MEASUREMENT

摘要

The invention relates to measuring air flow in ventilated environments such as computer data centres, and to apparatus for carrying out such air flow measurements. Embodiments disclosed include a portable measurement apparatus (10) comprising a plurality of air measurement units (11a-e), each unit comprising a tapering duct (12) extending between an inlet (13) and an outlet (14) of the unit, an anemometer (15) disposed at the outlet (14) and a temperature sensor (16) arranged to measure temperature of air passing through the duct and a data processing unit (17) connected to, and configured to receive and store readings from, each of the anemometers and temperature sensors, wherein the air measurement units are arranged to form, in use, a vertical array for measuring air flow (18) through each of the units.