180 Degree sweep Hall effect sensor
Terms and Conditions
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A hall effect rotary position sensor with a 180 degree measurement sweep. It reports shaft angle without anything touching.
Non contact is the whole reason to use one. A potentiometer measures angle by dragging a wiper across a resistive track, and that track wears. On something operated thousands of times, such as a throttle pedal or a selector, a worn track produces a dead spot or a jump at exactly the position that gets used most. A hall sensor reads a magnet's field through a gap, so nothing rubs and nothing wears out.
180 degrees is a usefully large sweep. It covers a pedal, a lever or a rotary selector with room to spare, and using only part of the range gives better resolution across the travel you actually care about.
Confirm the output before you design it in. Rotary hall sensors come with analogue, PWM or digital outputs, and with different supply voltages and output ranges. We have no datasheet published here, so ask us for the output type, the supply voltage and the transfer characteristic, because a controller expecting a 0 to 5 V analogue signal will do nothing with a PWM one.
Key specifications
| Part | AN920031 |
|---|---|
| Type | Hall effect rotary position sensor |
| Measurement sweep | 180 degrees |
| Sensing | Non contact |
| Weight | 0.04 kg |
Features
- Non contact, so there is no wiper and no track to wear out
- 180 degree sweep, covering pedals, levers and rotary selectors
- Tolerant of dirt and moisture, since nothing rubs
- Far longer service life than a potentiometer in a frequently used position
Compatibility
For throttle pedals, direction selectors, suspension position, steering angle and any other rotary measurement where a potentiometer would wear.
A single sensor is a single point of failure. On anything safety related, particularly a throttle, production practice is two independent sensors read by a controller that compares them, so a failure is detectable rather than being accepted as a genuine demand. Plan for that rather than trusting one output.
Ask us for the electrical specification before committing. See the note above.
In the box
- 1 x hall effect rotary position sensor
Downloads
No document is published for this sensor. Contact us for the output type, supply voltage and transfer characteristic.