Flexible Temperature Sensor for Voice Coils

Munroe O, Camberlein L, Polet F, Gaviot E, Novak A. Flexible Temperature Sensor for Voice Coils. J Audio Eng Soc. 2024;72(9):613-620. doi:10.17743/jaes.2022.0159

@article{Munroe2024_22712,
  author = {Munroe, Oliver and Camberlein, Lionel and Polet, Frédéric and Gaviot, Etienne and Novak, Antonin},
  title = {{Flexible Temperature Sensor for Voice Coils}},
  journal = {Journal of the Audio Engineering Society},
  volume = {72},
  number = {9},
  pages = {613--620},
  year = {2024},
  month = sep,
  publisher = {Audio Engineering Society},
  doi = {10.17743/jaes.2022.0159},
  url = {https://doi.org/10.17743/jaes.2022.0159}
}

TY  - JOUR
TI  - Flexible Temperature Sensor for Voice Coils
AU  - Munroe, Oliver
AU  - Camberlein, Lionel
AU  - Polet, Frédéric
AU  - Gaviot, Etienne
AU  - Novak, Antonin
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 72
IS  - 9
SP  - 613
EP  - 620
PY  - 2024
DA  - 2024/09/16
DO  - 10.17743/jaes.2022.0159
UR  - https://doi.org/10.17743/jaes.2022.0159
PB  - Audio Engineering Society
LA  - en
AB  - A new application of a thin-film resistance temperature detector is presented. Such a sensor is built into a prototype drive unit where it is used to measure the temperature rise of the voice coil excited by a multitone signal, and the results are compared by way of the pilot tone method. A sensor is made using 18-μm–thick rolled annealed copper, equivalent to that used in flexible printed circuit boards. The sensor is then used in an experiment to assess the influence of the thermal conductivity of the surrounding medium on the voice coil temperature, by performing the thermal measurements inside a volume of helium. The accuracy of the results is discussed and compared with the requirements of an application for loudspeaker drive units.
ER  -