Vol. 9, Special Issue, December 2010, pp.71-81

Magneto-inductive Sensors for Metallic Ropes in Lift Application

¹Aldo CANOVA, ²Francesco FICILI and ³Daniel ROSSI

¹Dipartimento di Ingegneria Elettrica, ²Mechatronics Laboratory, ³AMC Instruments
(Spin Off del Politecnico di Torino), Politecnico di Torino, I-10129, Torino, Italy

Tel. +390110907158, fax +390110907199

E-mail: aldo.canova@polito.it

Received: 27 September 2010   /Accepted: 30 November 2010   /Published: 30 December 2010

Abstract: In this paper an innovative system for the contemporary, selective and reliable control of integrity of multiple rope plants is presented. The system is based on magneto-inductive technology and is composed by a magnetic detector connected to an acquisition system. The core of the detector is constituted by an array of Hall sensors properly placed inside the instrument. After a brief introduction to the Non Destructive Techniques applied to the control of metallic ropes, the first part paper deals with the design and behavior of the detector and the acquisition system. In the second part of the paper a performance analysis for different rope size and experimental results on an elevator plants is presented and discussed.

Keywords: Non destructive testing, Metallic ropes, Hall sensors

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