A new type sonic anemometer-thermometer for field operation.

Abstract

Our newly developed three-dimensional type of sonic anemometer-thermometer has two main benefits compared with the traditional type. One is the “single pair” probe head and the second, “the adoption of the digital calculation of pulse time difference”. The principle of operation of the new type, a comparison with the traditional type and some results obtained in wind tunnel experiment as well as in the field are described in this paper.