Torque Measurement With Compliant Mechanisms
Name
md_135_3_034502.pdf
Size
1.34 MB
Format
Adobe PDF
Checksum (MD5)
84d340e248eac6dd7e0ce31d72146ef7
Author(s)
Bean, Jonathan F.
Ma, Raymond R
Slocum, Alexander H
Sung, Edward
Culpepper, Martin
Date Issued
January 2013
Journal
Journal of Mechanical Design
Publisher
ASME International
Citation
Ma, Raymond et al. “Torque Measurement With Compliant Mechanisms.” Journal of Mechanical Design 135, 3 (January 2013): 034502 © 2013 American Society of Mechanical Engineers
Version
Final published version
Abstract
This work focuses on the design, development, and testing of an inexpensive, low-profile, cartwheel flexure mechanism for torque measurement. It has been designed primarily for use in a rehabilitation and diagnostics instrument for the treatment of ankle injuries. The sensor is manufactured rapidly and at low-cost using an Omax™ abrasive waterjet machine. Strain gauges are bonded to the flexure beams to measure applied strain using a full wheatstone bridge circuit. Displacement, force, and torque are then calculated from the measured circuit voltage; power and velocity can also be determined if required by the application. Experimental results show that there exists a linear relationship between applied torque and output voltage of the wheatstone bridge for the nested cartwheel flexure design. Furthermore, results of preliminary tests of an ankle rehabilitation device show that it fulfills a need not currently satisfied by current rehabilitation and diagnostic technology in physical medicine and rehabilitation.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1115/1.4023326
