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Experimental lead zirconate titanate (pzt) slip sensor

Record type: Conference or Workshop Item (Paper)

Future advanced artificial hands will require the automatic holding of objects using feedback control. To achieve this aim will require sensors of various types, one of which should be capable of detecting the relative movement between the surface of a grasped object and the hand (slip). A low-cost sensor, using thick-film technology, has been developed which detects slip using the piezoelectric effect. Experimental evaluation of the sensor has been carried out using a test apparatus whereby a block of aluminium representing an object slides past the sensor. Attached to the object surface is a Perspex sheet with repeating groves cut into the surface. Two different separations of the groves have been tested. The results show that the slip sensor detects the relative velocity between a moving object and the sensor surface. The sensor has a frequency response into the kilohertz which makes it an excellent candidate for a slip sensor. The sensor is able to detect slip with and without a cosmetic material covering the sensor. Computer simulations of the mechanical modes of vibration have shown that the frequency of the lowest fundamental mode is much higher than the electronic signal output from the sensor.

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Citation

Chappell, Paul H, Cotton, Darryl P J, Cranny, Andy and White, Neil M (2008) Experimental lead zirconate titanate (pzt) slip sensor At MEC '08 Measuring success in upper limb prosthetics, Canada. 13 - 15 Aug 2008. , pp. 204-207.

More information

Published date: 14 August 2008
Additional Information: Event Dates: 13-15 August 2008
Venue - Dates: MEC '08 Measuring success in upper limb prosthetics, Canada, 2008-08-13 - 2008-08-15
Organisations: EEE

Identifiers

Local EPrints ID: 266639
URI: http://eprints.soton.ac.uk/id/eprint/266639
ISBN: 978-1-55131-124-1
PURE UUID: 744248b2-56bb-4c29-b6d4-92f80f45c23b

Catalogue record

Date deposited: 09 Sep 2008 09:59
Last modified: 18 Jul 2017 07:14

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Contributors

Author: Paul H Chappell
Author: Darryl P J Cotton
Author: Andy Cranny
Author: Neil M White

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