人们早就知道,晶体管的基极—发射极正向电压随着温度的增加而减少。这种性质,从晶体管发明以来,就有人尝试用它来制作温度敏感器,可是由于晶体管参数的不稳定而缺乏实用价值。六十年代,国外为适应军事研究的需要,选用昂贵的高质量晶体管制成温度敏感器,用在科学卫星、高空气象探测和深海海洋温度的测量方面。这种晶体管敏感器,测量范围广,灵敏度高,线性好,响应速度快,因为是电量输出,可以直接数字显示或 It has long been known that the transistor base-emitter forward voltage decreases with increasing temperature. This nature, since the invention of the transistor, some people try to use it to make temperature sensor, but due to the instability of the transistor parameters and lack of practical value. In the 1960s, in order to meet the needs of military research abroad, foreign countries selected expensive high-quality transistors to make temperature sensors for use in scientific satellite, high altitude weather detection and deep sea ocean temperature measurement. This transistor sensor, measuring a wide range of high sensitivity, good linearity, fast response, because it is the power output, you can directly digital display or