AbstractA vibrating reed apparatus for the measurement of dynamic Young's modulus has been constructed. The apparatus utilizes (a) a sensitive capacitance pick‐up to measure displacement of a reed having approximately 0.001 g. of silver painted on the free end of the reed, (b) a clamp assembly which permits placement of the specimen in small temperature‐controlled chambers, and (c) a linear variable differential transformer to facilitate maintenance of constant amplitude (independent of frequency) of the clamped end of the r
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