Experiment: Calibrating a light bulb

ECE532 Biomedical Optics
©1998
Steven L. Jacques, Scott A. Prahl
Oregon Graduate Institute

We shall calibrate the radiant power, P [W], of a light bulb by immersing it within a cup of black water and capturing all the radiant energy, Q [J], generated during an exposure time, t [s]. Measuring the temperature rise of the water will yield the power of the light bulb.

The radiant power P of the light bulb is 10 W.


to next page | back to Power & Energy | back to 1. Radiometry | ECE 532 | OGI Optics Courses | OMLC homepage.