Benefits and Features

Compatible with most Campbell Scientific data loggers

Designed for continuous, long-term, unattended operation in adverse conditions

Small size, simplicity, and rugged construction provide a quality instrument for a modest price

Ideal for wind profile studies

Compatible with the LLAC4 4-channel Low-Level ACConversion Module, which increases the number of anemometers one data logger can measure

Campbell Scientific version uses shielded bearings, which lowers the anemometer's starting threshold

Compatible with the CWS900-series interfaces, allowing it to be usedin a wireless sensor network

Technical Description

The 03002 uses a cup wheel assembly to measure wind speed. Rotation of the cup wheel produces an ac sine wave that is directly proportional to wind speed. The frequency of the ac signal is measured by a datalogger pulse count channel, then converted to engineering units (mph, m/s, knots). Campbell Scientific's version uses shielded bearings, which lowers the anemometer's threshold. Wind direction is sensed by a potentiometer. With the precision excitation voltage from the datalogger applied to the potentiometer elementt,he output signal is an analog voltage that is directly proportional to the azimuth angle of the wind direction.