A new low-cost stand-off vibration sensor based on the Doppler radar principle is presented. The baseline performance of this sensor was compared with a high-quality accelerometer in a well-controlled laboratory environment. This advanced vibration imaging sensor (ADVISER) was also validated for its prognostic health monitoring ability with a fault emulator. The ADVISER was able to detect machine misbalance and bearing damage at a distance of 4 feet without making any contact. This exceeded the performance of a high-quality screw accelerometer mounted directly on the bearing enclosure. In this paper, we present the sensor’s principle of operation, summarize results of comparing it with standard accelerometers, and conclude with its potential use in industrial and aerospace applications.
How to Cite
sensors, vibration sensor, displacement sensor, noncontact, stand-off, radar, handheld sensor, low cost, wide coverage
Amy D. Droitcour, Olga Boric-Lubecke, Victor M. Lubecke, Jenshan Lin, and Gregory T. A. Kovacs, (2004). Range Correlation and I/Q Performance Benefits in Single-Chip Silicon
Doppler Radars for Noncontact Cardiopulmonary Monitoring, in IEEE Transactions on Microwave Theory and Techniques, Vol. 52, No. 3, March 2004, p838
Harry Forbes (2008). Wireless Condition Monitoring Arrives (and Just in Time), in Power-Gen Worldwide, Vol. 112, No. 9, Sept. 1.
Fluke Introduces Vibration Tester (2010), http://www.sensorsmag.com/electronics- computers/news/fluke-introduces-vibration-tester- 6602, February 9.
Gregory C. Smith (2008). A Noncontact Method for Detecting Acoustic Emission Using a Microwave Doppler Radar Motion Detector. In IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 52, no. 9, September 2005
The Prognostic and Health Management Society advocates open-access to scientific data and uses a Creative Commons license for publishing and distributing any papers. A Creative Commons license does not relinquish the author’s copyright; rather it allows them to share some of their rights with any member of the public under certain conditions whilst enjoying full legal protection. By submitting an article to the International Conference of the Prognostics and Health Management Society, the authors agree to be bound by the associated terms and conditions including the following:
As the author, you retain the copyright to your Work. By submitting your Work, you are granting anybody the right to copy, distribute and transmit your Work and to adapt your Work with proper attribution under the terms of the Creative Commons Attribution 3.0 United States license. You assign rights to the Prognostics and Health Management Society to publish and disseminate your Work through electronic and print media if it is accepted for publication. A license note citing the Creative Commons Attribution 3.0 United States License as shown below needs to be placed in the footnote on the first page of the article.
First Author et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 United States License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.