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Mining Publication: Mobile Roof Support Load Rate Monitoring System
Keywords: Mobile roof supports Monitoring Pressure
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: October 1999
Authors: WL Howie, JK Owens
Conference Paper - October 1999
Download PDF Document (0.82 MB)
Proceedings of the IEEE Industry Applications Society (Phoenix, AZ, October 3-7, 1999). Vol. 1, :234-239
Mobile roof support (MRS) machines are used as roof support during pillar recovery in retreat operations in lieu of wooden posts, cribs, or hydraulic props. A Mine Safety and Health Administration-permissible load rate monitoring system was developed for the MRS by researchers at the Spokane Research Laboratory of the National Institute for Occupational Safety and Health. The system uses a dedicated embedded processor to monitor changes in pressure inside the hydraulic cylinders of the MRS through multiplexed data acquisition channels and converts these pressure changes to load rates that sequentially activate three load-rate-indicator lights mounted on the machine. Each light represents a different loading rate to alert mine personnel to dangerous conditions during pillar extraction.
Image of publication Mobile Roof Support Load Rate Monitoring SystemConference Paper - October 1999
Download PDF Document (0.82 MB)
Proceedings of the IEEE Industry Applications Society (Phoenix, AZ, October 3-7, 1999). Vol. 1, :234-239
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Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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