fairfolio
Saved Projects

Doppler Effect in Circular Motion on an Angled Plane: Investigate How the Angle of the Plane of Rotation Influences the Shift in Frequency of a Wave Source

ISEF · 2019 Engineering Mechanics

Ramchandani, Yash · United World College Red Cross Nordic

Overview

This experiment is meant to understand the relationship between the plane of rotation of a sound/light emitting body in circular motion and the resultant shift in its frequency as per Doppler Effect. An equation is derived that accounts for the velocity of rotation of the body, the velocity of emitted waves, and the direction of recording instrument respective to the emitting body. The Experiment was conducted using a speaker stuck to a rotating blade. Measurements made from the velocity of the blade and the frequency of sound produced vs recorded by the microphone were used to inform the accuracy of the mathematical model. The model worked well, showing that a horizontal rotation plane with respect to the plane of the observing body, produced maximum frequency shift and a vertical one showed close to no shift. frequency. This research project will allow researchers studying binary stars to account for frequency shifts and thus produce more accurate models.

Competition history

  • ISEF 2019 Engineering Mechanics · Entry ENMC028 Affiliated fair in Norway

Resources

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

Source: Regeneron International Science and Engineering Fair

Save projects to your library

Sign in with Google to keep track of projects you find interesting, organized into folders. An account also raises your daily allowance for “Has this been done?”, and lets you create a key for the MCP server with a much higher limit than anonymous use. Browsing stays public.

Continue with Google