LiDAR based determination of spring constant using smartphones

TL;DR

This paper demonstrates how smartphone LiDAR sensors can be used in physics experiments to determine spring constants, making such experiments accessible and simple for high school students at home.

Contribution

It introduces a novel application of smartphone LiDAR sensors for measuring spring constants in physics experiments, combining technology with education.

Findings

Experimental spring constants match theoretical values.

High school students can perform the experiment at home.

LiDAR sensor provides accurate oscillation period measurements.

Abstract

A novel use of the LiDAR sensor of a smartphone in introductory physics experiments is discussed in this article. We have determined the spring constant for various combinations of springs using the LiDAR sensor of a smartphone through the phyphox application. An electrical heater coil is used as a spring, and the period of oscillation of a vertical spring-mass system is measured using a LiDAR sensor. The experimental values of spring constants agree with the theoretical values. A high school student can perform this simple experiment in a smart way at home.