| 摘要 |
<p>A rotary coupling assembly has first and second coupling halves 1 that are mounted on a pair of rotary shafts of two machine components to be coupled. A first coupling half has a fixing bore 5 that receives a stud that supports a permanent magnet. An aligned fixing bore 4 in the second coupling half receives a sensing unit 13. The sensing unit has a compartment in which the permanent magnet 14 is freely received and comprises at least one pair of Hall-effect sensors that detects the intensity of the magnetic field generated by the magnet. Misalignment of the coupling shafts results in movement of the magnet relative to the sensing unit and a corresponding fluctuating output signal from the Hall-effect sensors. The output signal is processed and the amount of misalignment is calculated. The invention provides a non-contacting, high resolution and high frequency response misalignment detector which may be used whilst the coupling is in operation.</p> |
