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Multiple LED camera for dynamic photoelasticity

1995; Optica Publishing Group; Volume: 34; Issue: 13 Linguagem: Inglês

10.1364/ao.34.002236

0003-6935

Anand Asundi, M. R. Sajan,

Advanced Measurement and Detection Methods

Dynamic photoelasticity involves the high-speed recording of rapidly moving fringe patterns in synchronization with loading. Cranz Schardin cameras are routinely utilized in the recording of dynamic photoelastic patterns. There are no moving components in these cameras, making the setup simple and attractive. A multiple LED camera based on the Cranz Schardin format is presented. High-speed instant polaroid film is used for recording the photoelastic fringes. Low cost, simplicity in the experimental setup, and rapid repeatability are the advantages of the camera.