Displacement measurements at a connector contact interface employing a novel thick film sensor

Lam, Yu-Zhi, McBride, J.W., Maul, C. and Atkinson, J.K. (2008) Displacement measurements at a connector contact interface employing a novel thick film sensor IEEE Transactions on Components and Packaging Technologies, 31, (3), pp. 566-573. (doi:10.1109/TCAPT.2008.2001133).


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One of the key failure mechanisms for wiring and connector systems used in the automotive industry, is fretting and fretting corrosion at the contact interface of connectors. For many years, procedures have been carried out under laboratory controlled conditions to investigate both thermal and vibration fretting effects using environmental chambers and fretting tests. Both optical and visual inspections have also been adopted to observe the movement at the contact interface. However, these methods can be considerably inconvenient and costly. Furthermore, their suitability for field applications is limited. In order to study the fretting degradation at the actual interface for in-situ measurement effectively, a novel position sensor is designed to monitor the relative displacement. Thick film techniques are employed to fabricate miniaturized and cost effective resistive devices. The sensor is assembled into a connector sample by taking the place of the male component. When the interface experiences movement, the relative displacement of the contact point would cause a corresponding linear change of resistance measured across the male and female connection. The sensors are validated by a series of experiments and subsequently used in a field test to establish the relationships between the fretting effects with temperature, humidity and differential pressure, which is associated with temperature variation.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1109/TCAPT.2008.2001133
ISSNs: 1521-3331 (print)
Keywords: fretting, relative displacement, temperature, thick film sensor, vibration
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TL Motor vehicles. Aeronautics. Astronautics
ePrint ID: 63829
Date :
Date Event
September 2008Published
Date Deposited: 06 Nov 2008
Last Modified: 16 Apr 2017 17:22
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/63829

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