## A method for measuring Poisson's ratio of fibers |

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annulus area of fiber bridge and slide Burckmyer capillary tube change in length change In Poisson's connecting tube constant errors Cornell University cross sectional area diameter pyrex tube due to constant due to random dynamic Poisson's Ratio elastic deformation Electrical Engineering electrical resistance ERROR ANALYSIS errors i.e. errors fiber 1 length fiber is measured fiber is stressed galvanometer glass bridge initial value L/Lq length of fiber length of slide longitudinal strain lower mercury reservoir Marine Bore Tubing MEASURING POISSON'S RATIO mercury tubes Ohm's Law plot of l/2 r+a r r+Ar random errors Ratio for fibers Ratio for nylon reduce contact resistances resistance of remaining resistance of test resistance of trimmer resistors section of slide slide wire 1240 slide wire assembly slide wire ohms Stopcock stress-strain curve temperature test arm test specimen thermal conductivity upper mercury reservoir value of Poisson's viscous flow Wheatstone Bridge wire 1240 ohms