| 摘要 |
PURPOSE:To improve the temperature resolving power with a reduction in the required frequency band of an amplifier by performing a horizontal scanning with the oscillation of a gimbal only, when searching a target. CONSTITUTION:Incident infrared rays are focused with an infrared dome 1 and an infrared ray scope 2 and reflected with a double-axis scanning mirror 3 for horizontal and vertical scannings. Infrared rays reflected with the scanning mirror 3 are sent to a signal processor 11 through a detector 6, a preamplifier 7, a multiplexer 8 and the like to automatically detect and track a target. The unit indicated by the dotted line 20 is carried on a gimbal driven by a gimbal driving section 13 and detects the angle of horizontal oscillation of the gimbal with respect to the machine body with a rotary encoder 14 to be fed to the signal processor 11. A target is searched by oscillating the gimbal to the right or left. Here, the 2-axis scanning mirror 3 stops scanning and restarts it to track the target after the discovery thereof. |
