Speed measuring principle and characteristics of the anemometer
introduced the principle and features of anemometer
the anemometer is an instrument for measuring air velocity. Is a thin metal wire in a fluid, the flow of electricity heating wire, make its temperature is higher than the temperature of the fluid, so the wire is called the hotline.
small volume, little interference flow field;
high frequency response, up to 1 MH z.
high measuring precision, good repeatability. The disadvantage of hot wire anemometer is probe interference flow field to a certain extent, hotline is easy to break.
show volume flow directly. Input pipe cross-sectional area, can accurately calculate the volume flow.
instrument has the average time period or more function, is used to calculate the average flow rate.
calculating the average multipoint/period, keep the key, keep reading, with backlight.
automatic shutdown function, protect the soft cover, waterproof and dustproof, crash-proof
in addition to measure average speed, can also be measured fluctuating value and amount of turbulence; In addition to the measurement of single direction can also be measured simultaneously multiple directions velocity component.
it can display the maximum, minimum, with the function of reading to keep.