Affiliation:
1. John Abbott College, Sainte Anne de Bellevue, Quebec, Canada
Abstract
Modern MEMs gyros/accelerometers allow the angular velocity of pendula to be precisely measured and the angular acceleration to be calculated. For a compound pendulum, [Formula: see text], where a is the distance of the center of mass from the pivot, so the moment of inertia Ip of the compound pendulum about the pivot can be simply derived as [Formula: see text] from measurements of the angular acceleration [Formula: see text] when the pendulum is horizontal. Then mga can be determined by measuring the force and lever arm required to maintain the pendulum in a horizontal position.
Publisher
American Association of Physics Teachers (AAPT)
Subject
General Physics and Astronomy,Education
Reference18 articles.
1. Classical Mechanics
2. Practical applications of the compound pendulum
3. William Gracey, “The Experimental Determination of the Moments of Inertia of Airplanes by a Simplified Compound-Pendulum Method,” in Technical Note National Advisory Committee for Aeronautics (1629) (1948), p. 26.