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Development of a Mesoscale Fiberoptic Rotation Sensor for a Torsion Actuator | IEEE Journals & Magazine | IEEE Xplore

Development of a Mesoscale Fiberoptic Rotation Sensor for a Torsion Actuator


Abstract:

This letter presents the development of a mesoscale fiberoptic rotation sensor with a diameter of 8 mm for a shape memory alloy (SMA) torsion actuator for neurosurgical a...Show More

Abstract:

This letter presents the development of a mesoscale fiberoptic rotation sensor with a diameter of 8 mm for a shape memory alloy (SMA) torsion actuator for neurosurgical applications. Within the sensor, a rotary head with a reflecting surface is capable of modulating the light intensity collected by optical fibers when the rotary head is coupled to the torsion actuator. The mechanism of light intensity modulation is modeled, followed by experimental model verification. Meanwhile, working performances for different rotary head designs, optical fibers, and fabrication materials are compared. After the calibration of the fiberoptic rotation sensor, the sensor is capable of precisely measuring rotary motion and controlling the SMA torsion actuator with feedback control.
Published in: IEEE Robotics and Automation Letters ( Volume: 3, Issue: 1, January 2018)
Page(s): 537 - 543
Date of Publication: 15 November 2017

ISSN Information:

PubMed ID: 29503870

Funding Agency:


References

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