Measuring Pulse-Width Modulated Sources
Pulse-width modulation is a useful method to control the luminance of LED bulbs for lighting and display applications. However, sources with PWM can be difficult to measure accurately. Radiant's application engineering team recently performed a series of tests to determine the most effective way to measure pulse-width modulated sources using a ProMetric® I16 Imaging Colorimeter and TrueTest™ Software.
This How-To Guide outlines the results of the study. In it you'll learn how to adapt measurement parameters, including
- Determining how much of an effect PWM is having on on your measurements
- A method of averaging luminance values to correct for the impact of PWM
- Techniques for adjusting exposure times, duty cycle, f/# and more to mitigate the effect of PWM and obtain accurate measurements
Get the document
How can we help?
Please complete the following fields and we’ll follow up with you promptly.