LiDAR based determination of spring constant using smartphones

Sanjoy Kumar Pal; Soumen Sarkar; Pradipta Panchadhyayee

doi:10.1142/S266133952450001X

LiDAR based determination of spring constant using smartphones

Physics Education 2026-05-05 v1

Authors: Sanjoy Kumar Pal , Soumen Sarkar , Pradipta Panchadhyayee

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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.

Cite

@article{arxiv.2605.01534,
  title  = {LiDAR based determination of spring constant using smartphones},
  author = {Sanjoy Kumar Pal and Soumen Sarkar and Pradipta Panchadhyayee},
  journal= {arXiv preprint arXiv:2605.01534},
  year   = {2026}
}

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