温度变化环境热线现场校准装置

当热线工作于温湿度变化场合时，其特征参数随之变化。为了保证测量的准确性，热线仪需随环境变化进行校准。本文设计了一种实时热线现场校准装置和遥测遥控系统，适用于野外和恶劣环境下的测量。该仪器在斜拉桥风致振动研究中准确地测量出了台风过境时的参数特性，显示了较强的适用性。

Temperature Variation Circumstance Anemometer In-situ Calibration Facility

When hot-wires have to be used in an temperature or humidity variation environment, its calibration constants often changed consequently. In order to keep measurement result correct, hot-wires must be calibrated regularly with the vary of circumstance. One kind of in-situ hot-wire calibration facility is designed, which can be used to accurately determine the characteristic coefficient and the hot-wire frequency response. This instrument is easy to be used outdoor and in poor circumstance, where ordinary calibration facility can not work well. A remote controlled automatic calibration system used for measuring the typhoon characteristics in the research of wind-induced vibration of long suspension bridge was also discussed.