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本文简要论述了目前通用的几种激光高速全息照相术。为满足研究单次瞬态过程的需要,我们研究了一种能够顺序记录多幅全息图的“电光分幅式曝光法”。本文分析了电光分幅技术应用于脉冲全息照相术的基本原理,并研究计算了曝光系统的可控程序和主要器件的数据。该相机以画幅多,帧频高和曝光时间短为其特点。此外,曝光系统还有最好的重复性和准确的同步性。因此它还能顺序记录多幅的干涉全息图。
This article briefly discusses several commonly used laser high-speed holography. In order to meet the need of studying single transient process, we studied a “electro-optical framing method” that can record multiple holograms sequentially. This paper analyzes the basic principle of electro-optic framing applied to pulse holography, and studies the controllable program of the exposure system and the data of the main devices. The camera with more frames, high frame rate and exposure time is short. In addition, the exposure system has the best repeatability and accurate synchronization. It can also record multiple interferograms in sequence.