Rotation speed / angle detection

Currently, a rotating part such as a small-sized motor is widely used in various fields. To control the rotating part, highly accurate speed detection is one of the essential technologies. We introduce some examples to detect the rotation speed using Hall effect ICs with integral Hall sensors here.

In recent years, there have been increasing demands for further miniaturization and better environment resistance in the rotation angle sensor/encoder market.
Outlined below are our rotation angle sensor packaged in a compact size and excellent in the environment resistance (resistant to temperature/contamination/vibration).

Since highly accurate machines have been introduced, the detection of gear rotation with high resolution and high accuracy has been more and more requested. Here, some configuration examples to detect the gear rotation with high accuracy are introduced. Such a configuration uses the element in which the resistance value changes as the magnetic field changes (semiconductor magnetoresistive element).