far-infrared detector

例句：

1. 1.The far-infrared detector is used to detect the presence of heat radiation from objects.
   远红外探测器用于探测物体的热辐射。
2. 2.Infrared technology is widely used in various applications, including medical imaging and remote sensing.
   红外技术在各种应用中被广泛使用，包括医学成像和遥感。
3. 3.The far-infrared detector can be used to detect the presence of moisture in materials.
   远红外探测器可以用于检测材料中的水分存在。