Investigation of optomechanical properties of PMMA and their applications in pressure sensors: Part II. plastic elastic

Razak H. Yousif; K. I. Hajim; K. S. Naimee

doi:10.1117/12.22852

1 November 1990 Investigation of optomechanical properties of PMMA and their applications in pressure sensors: Part II. plastic elastic

Razak H. Yousif, K. I. Hajim, K. S. Naimee

Author Affiliations +

Proceedings Volume 1334, Current Developments in Optical Engineering IV; (1990) https://doi.org/10.1117/12.22852
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

The optomechanical properties of poly(methyl methacrylate)(PMMA) blocks imposed to indentation pressure are investigated. The intensity of a He-Ne laser beam transmitted through the blocks is found to fade down to zero (cutoff point) in an oscillatory manner as the indentation enlarged. The indentation pressure at cutoff is independent of the specimen's thickness and length (optical path). This pressure can threfore be used to account for the specimens hardness in plastic-elastic regime.

Citation Download Citation

Razak H. Yousif, K. I. Hajim, and K. S. Naimee "Investigation of optomechanical properties of PMMA and their applications in pressure sensors: Part II. plastic elastic", Proc. SPIE 1334, Current Developments in Optical Engineering IV, (1 November 1990); https://doi.org/10.1117/12.22852

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