Rotational sensing is used in a variety of applications, including cars, motor shafts and turbines. Traditionally in these types of applications, designers have used mechanical or optical solutions to sense rotation, but with drawbacks.
Learn how you can use a Hall sensor to measure speed or two to measure speed and direction magnetically in your rotary encoder application. Contact-less Hall effect technology senses a magnet that is built into the knob and allows designers to do the same type of quadrature output (signals that are 90 degrees out of phase) that traditional rotary encoders use but with higher reliability and accuracy, while reducing bill-of-materials and system cost.
Read more on the Behind the Wheel blog.
