A hotwire calibration facility used in situ with temperature variation

摘要

A handy-hot-wire calibration facility is designed, which can be used to accurately determine the characteristic coefficient and its frequency response. This instrumnt is very lighter with small size, low price, easy to be used out door and in poor circumstance, where ordinary calibration facility can not work well. For its original purpose a remote controlled automatic calibration system is required in order to measure the wind characteristics in an isolated island as typhoon passed by. The typhoon measuring experiment used in the research of wind-induced vibratio of long suspension bridge was discussed.