It indicates the shape of the probe, which resembles a baseball bat, allowing extension of the sensor head forward from the airplane into a region of minimal flow disturbance. But it also reflects our commitment to continuing excellence in turbulence measurement. This latest version has heated sensors to maintain calibration stability over a wide range of ambient temperatures, and is designed for relatively easy replication. The probe weighs 3 kg and requires 10 W of 10 to 30 VDC power. Like a current generation sonic anemometer, data is transmitted serially at 50 Hz.
Easy installation is an important feature of the probe.
The following is link listed and provides detailed descriptions of technical aspects. Most of the information is contained on this page so that printing is easy. Relative wind velocity is measured with a 9-hole pressure sphere. Modern solid state sensors are used. The BAT probe is being used on several aircraft.