微秒级温度传感器动态校准研究进展

近年来，应用于航空航天领域极端测温场合的温度传感器响应速度已达到微秒量级，然而，如何实现对其进行微秒级的动态校准仍是一个亟待解决的挑战。激波管法和激光法是两种解决该问题的潜在技术途径，二者均可提供微秒级的温度阶跃响应，但也具有不同的特点。激波管法适用于高温高压环境，但其阶跃信号的上升过程和幅值存在不稳定性。激光法则具备非接触性和高精度的特点，但目前尚未建立统一的评估体系，无法直接比较不同温度传感器的动态响应特性。最后，总结出3个关键研究方向：改进现有校准方法、探索新的校准方法，以及构建新的评估理论，以促进微秒级温度传感器动态校准研究和相关技术应用的发展。

Progress on dynamic calibration of microsecond temperature sensors

In recent years, the response speed of temperature sensors applied in extreme temperature measurement situations in aerospace has reached the microsecond scale, however, how to realize dynamic calibration of them at the microsecond scale is still a challenge to be solved. The shock tube method and the laser method are two potential technological approaches to the problem, both of which can provide a microsecond temperature step response but also have different characteristics. The shock tube method is suitable for high-temperature and high-pressure environments, but the rising process and amplitude of its step signal are unstable. The laser method is characterized by non-contact and high accuracy, but a unified evaluation system has not yet been established to directly compare the dynamic response characteristics of different temperature sensors. Finally, three key research directions are summarized: improving existing calibration methods, exploring new calibration methods, and constructing new evaluation theories to facilitate the development of microsecond temperature sensor dynamic calibration research and related technology applications.