Measuring Speed
Chapter Outline
Improving the accuracy of the back EMF voltage measurement
An optical method of measuring speed
Using the slots in the wheel to count revolutions
Other optical methods for measuring speed
Avoiding crosstalk in speed measurements
Calculating speed from the slot count
Converting optical power to voltage
When is the transimpedance amplifier not linear?
Ambient light interference – the sun
Ambient light interference – incandescent lighting
Ambient light interference – fluorescent lighting
Reducing the effect of ambient lighting
Get MSP430-based Robot Applications now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
