CPC G01K 1/026 (2013.01) [G01K 7/427 (2013.01); H04R 3/007 (2013.01)] | 15 Claims |
1. A device comprising:
a panel audio loudspeaker comprising a panel extending in a plane and an actuator coupled to the panel, the actuator comprising:
a voice coil attached to and extending from the panel along an axis;
a magnet assembly suspended from the panel via one or more springs; and
a temperature sensor in electrical contact with the coil at three different axial locations, the temperature sensor being configured, during operation of the device, to measure a temperature of the coil based on voltage measurements at the three different axial locations.
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