本文所介绍的温度和加速度传感器是利用光纤和光学测量的一种接触式测量装置,它可以测量出传统方法难以测量的物体,在恶劣环境下也能运用。因而,其应用前景十分广阔。一、光纤温度计原理作为传感器,用GaAs 晶片封入到一根光纤入射端,利用测量仪内的发光二极管(LED)辐射出来的光照射到GaAs 晶片上,GaAs 便吸收这种光能,经激励后,发出波长与吸收光不同的光。这种现象即是光致发 The temperature and acceleration sensors described in this article are a type of contact measurement device that uses optical and optical measurements to measure objects that are difficult to measure with conventional methods and are also used in harsh environments. Therefore, its application prospect is very broad. First, the principle of optical fiber thermometer As a sensor, with GaAs chip into the incident end of a fiber, the use of measuring instruments within the light-emitting diode (LED) light irradiation to the GaAs chip, GaAs will absorb this light energy, after stimulation , Emits light with a wavelength different from that of the absorbed light. This phenomenon is photoluminescence