Accelerometer Testing Apparatus 270045

THIS article reports research directed toward laboratory verification of deductions arrived at in Dr. Liebowitz's theoretical research.3 C. M. Manly, C. B. Veal4 and Dr. Liebowitz have been studying for some time the problem of devising an apparatus to test accelerometers. Mr. Manly and Dr. Liebowitz here summarize the results of the development work. The testing apparatus constructed incorporates an attempt to avoid the uncertain errors of any crank-motion by obtaining harmonic motion through the rotation of eccentric weights mounted on a spring-board, thus obtaining the advantage of extreme simplicity, minimum cost and at the same time avoiding the errors incident to lost motion by employing a molecular hinge. Results of a short series of experimental runs with a micrometer type of accelerometer are given.


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