美海军在其夜袭系统中设想用一种可昼夜探测和捕获的传感器,用它发射空地导弹攻击目标。这一系统所用成象传感器虽然不具备红外前视装置的高灵敏度,但价格只有其1/4(15000美元而不是5万～6万美元)。它是一种不致冷的热电摄象管,比前视装置简单,可靠。它和现有红外前视装置一 The U.S. Navy envisions in its night-time system a sensor that can detect and capture day and night and use it to launch surface-to-air missiles to attack targets. Although the imaging sensor used in this system does not have the high sensitivity of infrared front-view devices, it costs only 1/4 ($ 15,000 instead of $ 50,000 to $ 60,000). It is an uncooled thermocouple tube that is simpler and more reliable than front view devices. It and the existing infrared front view device one