A pendulum experiment device with scale

By precisely adjusting the pendulum angle of the pendulum experimental device through the guiding mechanism and snap-fit ​​components, the problem of angular deviation caused by the gap between the pendulum string and the scale in the existing device is solved, realizing high-precision data measurement and stability for pendulum experiments with different pendulum lengths.

CN224366486UActive Publication Date: 2026-06-16JIANGXI FENGCHENG MIDDLE SCHOOL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI FENGCHENG MIDDLE SCHOOL
Filing Date
2025-07-10
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing simple pendulum experimental setup has a gap between the pendulum string and the scale, which leads to angle adjustment errors and affects the accuracy of the experiment. In particular, the measured data deviates from the theoretical value under the condition of small-angle approximate simple harmonic motion.

Method used

A graduated pendulum experimental device was designed. The pendulum bob angle is precisely adjusted through a guide mechanism and a locking assembly. The pendulum angle is determined by a guide groove and a pointer. The pendulum bob is fixed by an adjusting rod and a locking assembly to ensure the accuracy of the pendulum angle.

Benefits of technology

It improves the accuracy of simple pendulum experiments, satisfies the conditions for approximate simple harmonic motion at small angles, enhances the accuracy of period measurement and derivation of gravitational acceleration, and strengthens the adaptability of the device under different pendulum lengths.

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Abstract

The utility model belongs to simple pendulum experiment field provides a kind of simple pendulum experimental device with scale, including support base, support base upper surface is fixedly installed with support rod, support rod top is fixedly connected with support plate, and support plate upper surface one side is provided with cycloidal pendulum, and cycloidal pendulum bottom is fixedly connected with pendulum ball, and support base front end surface edge portion is fixedly installed with fixed plate, and fixed plate front end surface bottom is provided with scale, and fixed plate front end surface top is provided with guide sliding slot, and guide sliding slot inside is also equipped with guide mechanism, for the positioning of pendulum ball placement angle;The utility model is by sliding block along guide sliding slot sliding, and pointer scale determines swing angle, and adjusts support rod and cooperates with clamping component fixed pendulum ball, solves the angle deviation problem caused by the clearance between traditional device cycloidal pendulum and scale, guarantees swing angle adjustment precision, satisfies simple pendulum small angle experimental condition, improves the accuracy of periodic measurement and gravity acceleration derivation.
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