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Strain measurement on stiff structures: experimental evaluation of three integrated measurement principles

Rausch, Jacqueline and Hatzfeld, Christian and Karsten, Roman and Kraus, Roman and Militzer, Jonathan and Werthschützky, Roland (2012):
Strain measurement on stiff structures: experimental evaluation of three integrated measurement principles.
12, In: Smart Materials and Structures, (6), IOP Science, [Online-Edition: http://stacks.iop.org/0964-1726/21/i=6/a=064008],
[Article]

Abstract

This paper presents an experimental evaluation of three different strain measuring principles. Mounted on a steel beam resembling a car engine mount, metal foil strain gauges, piezoresistive silicon strain gauges and piezoelectric patches are investigated to measure structure-borne forces to control an active mounting structure. FEA simulation determines strains to be measured in the range of 10 −8 up to 10 −5 m × m −1 . These low strains cannot be measured with conventional metal foil strain gauges, as shown in the experiment conducted. Both piezoresistive and piezoelectric gauges show good results compared to a conventional piezoelectric force sensor. Depending on bandwidth, overload capacity and primary electronic costs, these principles seem to be worth considering in an adaptronic system design. These parameters are described in detail for the principles investigated.

Item Type: Article
Erschienen: 2012
Creators: Rausch, Jacqueline and Hatzfeld, Christian and Karsten, Roman and Kraus, Roman and Militzer, Jonathan and Werthschützky, Roland
Title: Strain measurement on stiff structures: experimental evaluation of three integrated measurement principles
Language: English
Abstract:

This paper presents an experimental evaluation of three different strain measuring principles. Mounted on a steel beam resembling a car engine mount, metal foil strain gauges, piezoresistive silicon strain gauges and piezoelectric patches are investigated to measure structure-borne forces to control an active mounting structure. FEA simulation determines strains to be measured in the range of 10 −8 up to 10 −5 m × m −1 . These low strains cannot be measured with conventional metal foil strain gauges, as shown in the experiment conducted. Both piezoresistive and piezoelectric gauges show good results compared to a conventional piezoelectric force sensor. Depending on bandwidth, overload capacity and primary electronic costs, these principles seem to be worth considering in an adaptronic system design. These parameters are described in detail for the principles investigated.

Journal or Publication Title: Smart Materials and Structures
Volume: 12
Number: 6
Publisher: IOP Science
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Microtechnology and Electromechanical Systems
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Measurement and Sensor Technology
Date Deposited: 01 Jun 2012 15:18
Official URL: http://stacks.iop.org/0964-1726/21/i=6/a=064008
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