Type of New Chinese-Produced High-Speed Camera and Its Utilization in Detonation Physics Experiments

摘要

This paper introduces the technological capability and special features of the new, domestically produced, Type SJZ-15 high-speed rotating mirror scanning camera and its utilization in detonation physics experiments. The camera uses an axial flow gas turbine and a two-stage internal blower for cooling. The turbine and blower use the same group of nozzles. The structure is simple, has good axial balance, and improves the cooling capability of the driving bearing housing. The two ends of the rotating mirror use three elastic bearing supporters. The axial bearings have ''O''-type elastic rubber balls, which are automatically centered and absorb vibration very well. The rotating mirror does not use an axial vacuum system, but the picture quality is excellent. The first objective lens is a Fufica type and permits use as a split-range camera. The operation handles are located on the same side of the camera. The operation handles for the rotating mirror and the main objective lens are not as convenient as the micrometer adjustment. Detonation experimental tests, technology evaluations, and actual usage prove the operation is simple and reliable, the quality of optical image formation is excellent, the light strength is appropriate, and it is an instrument of comparatively great potential. 5 figs. (ERA citation 10:040073)