Clamped type compound pendulum with graduated scale

Abstract

The invention provides a clamped type compound pendulum with a graduated scale, which relates to the field of experiments of college physics, in particular to making of the compound pendulum with the graduated scale. A swinging rod of the compound pendulum in college physics lab is generally provided with a circular hole; and as too larger spaces are available between suspending points and periodic quantity is discrete, data processing of the compound pendulum experiment is substantially complicated. In order to overcome the complicatedness in data processing of compound pendulum, the graduated scale is additionally arranged on the swinging rod in the invention, and the swinging rod of the compound pendulum is fixed through clamping. The technical scheme is as follows: the swinging rod is a cylinder with diameter of 10 mm and length of 500-800 mm; one part is cut off from the cylinder to form a rectangular surface at the surface of the cylinder; the rectangular surface is 4 mm wide; the rectangle is marked to form a millimeter graduated scale; and the swinging rod is clamped by a fixture in which a number reading window is formed. The clamped type compound pendulum with the graduated scale, provided by the invention, has the advantages as follows: as no suspending hole is available on the swinging rod, the spaces between fixing points can be continuously changed, so that coordinates of the four suspending points with the same periods can be directly measured so as to simplify the data processing process.

Description

technical field [0001] The invention relates to the field of university physics experiments, in particular to the manufacture of a compound pendulum with a scale. Background technique [0002] The pendulum pendulum of the university physics laboratory generally has a round hole through which the pendulum pendulum is suspended on the pendant. Due to the suspension, the suspended pendant must have a certain strength and naturally requires a certain diameter. If it is too small, the round hole of the pendulum rod should be inserted into the pendant, so the round hole should not be too small, taking into account the symmetry and the convenience of counting. The diameter of the general round hole is 1cm, and the interval of the round hole is 2cm. [0003] Although it is known that for some period values, the period values ​​of the four suspension points of the compound pendulum are the same, the sum of the distances from the two suspension points on one side of the center of grav...

AI Technical Summary

Problems solved by technology

However, because the interval of the suspension points is too large, the period value is discrete, and it is rare to measure the suspension points with the same 4 periods. When processing data, it is generally used to draw a picture, take 4 periods with the same point from the picture, and then read its coordinates, which makes the data processing of the complex pendulum experiment quite cumbersome

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