John Zimmerman at Sporty's told me smartphone
anemometers are niche products, but are gaining traction as they get better.
On the other hand, vane-type, hot-wire-type, and hood-type
anemometers and flowmeters are light and easy to carry and thus are widely used in the field.
Experimental Instruments Reference sites K34 [4] 3D-sonic
anemometer CSAT3, Campbell scientific Rebio-Jaru Cup
anemometer Low Power A100L2, Vector [22] Instruments Inc.
Compared to the plasma
anemometers introduced in [1, 9,17], our method is a low cost, practical, and easy to realize one.
For instance, in two experimental studies [25] [26] involving field measurements in the ASL using arrays of ultrasonic
anemometers, the ratio of the advection speed to the mean speed [W.sub.a] / [??] was reported to lie between 1 and 1.2.
The slope of expression (6), d[A.sub.r]/d[R.sub.rc], seems to be directly related to the aerodynamic nondimensional coefficient of the cups, as very small differences in this coefficient were observed among the 42 calibrations performed on the 2
anemometers tested.
In most cases, they find that the balancer is attempting to determine the air quantities and has a hot wire
anemometer of some sort.
Commercial
anemometers which are used for weather forecast have a tolerance of +-0.3m/s to 0.5 m/s; these may be reasonably accurate
anemometers for weather forecast but such tolerance is not acceptable for wind turbine installation.
While there are several different kinds of
anemometers, the basic cup
anemometer (see Figure 3) is a standard fixture in the industry.
Wind speed can be measured with an instrument called an
anemometer.
Product categories include Infrared Thermometers, Digital Pressure Gauges, Digital Multimeters, Differential Pressure Gauges, Thermo Hygrometers, Digital
Anemometers, Digital Differential Pressure Gauges, Transmitters, Clamp Meters, Insulation & Continuity Testers and many more test and measurement instruments.
The commonly used methods at present and the potential techniques for the near future for indoor airflow measurements include rotating vane
anemometers, thermal
anemometers, ultrasonic
anemometers, Laser-Doppler velocimetry, visualization techniques, particle image velocimetry, particle tracking velocimetry, and molecular tagging velocimetry.
