PN junction detector

例句：

1. 1.The PN junction detector is used to detect the presence of a charge carrier in a semiconductor device.
   PN结探测器用于探测半导体器件中电荷载体的存在。
2. 2. The PN junction detector is essential for the accurate measurement of electrical properties in electronic devices.
   PN结探测器对于电子器件中电性质的准确测量至关重要。
3. 3. The PN junction detector is widely used in various applications, including telecommunications and optoelectronics.
   PN结探测器在各种应用中被广泛使用，包括电信和光电领域。