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A UNIVERSAL INSTRUMENT FOR FRINGE MULTIPLICATION
Author(s) -
McNICHOLAS J. B.
Publication year - 1970
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1970.tb01648.x
Subject(s) - darkroom , optics , photoelasticity , sensitivity (control systems) , photography , microscope , transmission (telecommunications) , stress (linguistics) , computer science , computer graphics (images) , materials science , engineering , physics , electronic engineering , telecommunications , composite material , art , visual arts , linguistics , philosophy , solid mechanics
Expenditure of time for conventional photoelastic analysis of two‐dimensional models under load and of frozen‐stress slices is minimised and the applications of materials of low optical sensitivity either for stress or for strain are extended by the use of this instrument, which is designed for incorporation in any conventional transmission bench. Data may be analysed directly by travelling microscope or deduced from photographs. The light may also be passed into a separate darkroom unit and the faint images projected on to a screen for observation and for recording of information on photographic paper which is then rapidly processed.