Height Sensor
The height sensor consists of Hall effect devices arranged to measure the direction of the magnetic field of a small magnet attached to the end of the sensor shaft. As the sensor shaft rotates, so do the lines of magnetic flux from the magnet. The signals from the Hall effect devices are processed by means of a dedicated integrated circuit to generate an output voltage that varies as the sensor shaft is rotated. The sensor has a measurement range of ± 40° around its nominal position and the nominal sensitivity is 57 mV/° of shaft rotation.
The following graph shows the height sensors' angular position versus output voltage characteristic.
Height Sensor Voltage
| ITEM | DESCRIPTION |
|---|---|
| A | Sensor voltage |
| B | Angle of rotation |
| 1 | Outside measuring range |
| 2 | Voltage output |
| 3 | +- 40 degree measuring range |