Full Content is available to subscribers

Subscribe/Learn More  >

Noncontact Torque Sensing for Performance Monitoring and Fault Detection

[+] Author Affiliations
Neil Goldfine, Tim Lovett, Yanko Sheiretov, David Grundy, Todd Dunford, Vladimir Zilberstein

JENTEK Sensors, Inc., Waltham, MA

Paper No. POWER2009-81216, pp. 479-486; 8 pages
  • ASME 2009 Power Conference
  • ASME 2009 Power Conference
  • Albuquerque, New Mexico, USA, July 21–23, 2009
  • Conference Sponsors: Power Division
  • ISBN: 978-0-7918-4350-5 | eISBN: 978-0-7918-3853-6
  • Copyright © 2009 by ASME


A conformable, highly directional eddy current sensor, the Meandering Winding Magnetometer (MWM® ), and eddy current array (MWM-Array) are described along with inverse methods that use precomputed databases to rapidly convert sensor responses to material properties of interest. An arrangement of four stacked MWM sensors, oriented at 0°, 90°, +45° and −45°, forms the quadri-directional magnetic stress gage (QD-MSG™). The QD-MSG is described and an example of noncontact torque measurement in a rotating helicopter main rotor shaft is presented. Dynamic torque measurement has previously relied upon shaft mounted hardware, such as strain gages, that must receive power and transmit signal through slip rings or rotary transformers, directionally magnetized areas of the shaft or rotational position sensors separated by some distance and sensing shaft rotational deflection. The QD-MSG has the advantages of being noncontact, requiring no modifications to a steel shaft and requiring access to a small area of the shaft.

Copyright © 2009 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In