O'Reilly logo

Hall-Effect Sensors, 2nd Edition by Edward Ramsden

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 8

Speed and Timing Sensors

The ability to measure the speed or position of a rotating shaft is necessary to the proper functioning of many types of machinery. Speed sensors, timing sensors, and encoders are used in applications as varied as automobile ignition controls, exercise equipment, and CNC machine tools. An example of a typical Hall-effect speed sensor is shown in Figure 8-1. When a toothed steel target (such as a gear) is rotated past its flat end, this device provides a train of output pulses, one for each passing target feature.

image

Figure 8-1 Geartooth sensor assembly. (courtesy of Cherry Electrical Products)

8.1 Competitive ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required