Zephyr Introduces MagSens Wire Rope Inspection System
Posted: 2010-8-12
Source:
http://www.zephyrintl.com/magsens.htm
The MagSens is designed to revolutionize the way the rescue hoist wire rope cable is inspected and to provide the ability to measure and document its condition. The MagSens can be supplied as an integral part of the Hydraulic Ground Support Equipment, the Manual Ground Support Equipment, or as a stand alone system.
Magnetic Flux Leakage inspection has been used for over 50 years for the purpose of wire rope inspection in deep mines and in the offshore oil industry. The MagSensTM system has been adapted from this technology for the purpose of augmenting visual inspection and providing an increased level of safety and cost effectiveness for Rescue Hoist Maintainers. Magnetic flux leakage inspection is particularly effective when combined with visual examinations and a thorough understanding of the rescue hoist wire rope deterioration modes.
The MagSensTM uses Magnetic Flux Leakage to locate defects in the rescue hoist wire rope. The device uses strong permanent magnets to create a magnetic flux circuit and Hall Effects sensors mounted to magnetic flux concentrators detect variations in the magnetic flux circuit that result from local faults (LF) or loss of magnetic area (LMA). The variations or anomalies show up as signals that are recorded and displayed on a laptop computer.
The MagSensTM signal characteristics are indicative of rescue hoist wire rope defect characteristics. However the indications or the spike size and shape may be similar for different types of defects. Using the MagSens TM system along with a visual examination and knowledge of the history of the wire rope provides the users the ability to determine when the wire rope should be replaced.
Magnetic Flux Leakage inspection has been used for over 50 years for the purpose of wire rope inspection in deep mines and in the offshore oil industry. The MagSensTM system has been adapted from this technology for the purpose of augmenting visual inspection and providing an increased level of safety and cost effectiveness for Rescue Hoist Maintainers. Magnetic flux leakage inspection is particularly effective when combined with visual examinations and a thorough understanding of the rescue hoist wire rope deterioration modes.
The MagSensTM uses Magnetic Flux Leakage to locate defects in the rescue hoist wire rope. The device uses strong permanent magnets to create a magnetic flux circuit and Hall Effects sensors mounted to magnetic flux concentrators detect variations in the magnetic flux circuit that result from local faults (LF) or loss of magnetic area (LMA). The variations or anomalies show up as signals that are recorded and displayed on a laptop computer.
The MagSensTM signal characteristics are indicative of rescue hoist wire rope defect characteristics. However the indications or the spike size and shape may be similar for different types of defects. Using the MagSens TM system along with a visual examination and knowledge of the history of the wire rope provides the users the ability to determine when the wire rope should be replaced.
