Journal of Sensors and Sensor Systems
Journal of Sensors and Sensor Systems
JSSS
Articles | Volume 6, issue 2
Articles | Volume 6, issue 2
https://doi.org/10.5194/jsss-6-253-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/jsss-6-253-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 6, issue 2
Regular research article
 | 
14 Jul 2017
Regular research article |  | 14 Jul 2017

Development of a non-contact torque transducer based on the laser speckle contrast method

Alberto Garinei and Roberto Marsili

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Latest update: 23 Apr 2025
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Short summary
When a torque measurement is required, torque transducers show many drawbacks during their use: the usual limits are the need for contact and the effects on shaft line parameters. A new approach is proposed in this work: a non-contact torque meter for a machine shaft has been developed, based on a laser speckle contrast method. It carries out torque measurements evaluating the torsional displacement between two distinct sections of the shaft, through the monitoring of their roughness.
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