Journal article
Evaluation of uniaxial strain transducer for railroad infrastructure
Transportation research record, Vol.1742(1), pp.78-86
2001
DOI: 10.3141/1742-10
Abstract
The uniaxial strain transducer (UAST) is a microelectromechanical system that features a high resolution, a high sampling rate, and absolute encoding. It needs no calibration and has no strain drift over time. Strains measured with a UAST were compared with those measured with a typical electrical resistance strain gauge. Some discrepancies between the two sets of measurements were observed in a bending test; however, there was a good correlation between the two measurements in tension and compression tests. Strains measured with the UAST under a cyclic load followed closely the haversine loading curves generated with a Materials Testing System testing machine. To obtain reasonably accurate strain measurements under moving trainloads, a 12-bit operational mode for the UAST with a resolution of 2.81 muepsilon at 64 Rz for a loading cycle is recommended. This research project seeks to evaluate the potential for the development of a prototype hybrid UAST, which would incorporate strain data reduction algorithms into a UAST for railroad application by using existing UAST technologies.
Details
- Title: Subtitle
- Evaluation of uniaxial strain transducer for railroad infrastructure
- Creators
- Hae-Bum YunHosin LeeBrian Maclean
- Resource Type
- Journal article
- Publication Details
- Transportation research record, Vol.1742(1), pp.78-86
- DOI
- 10.3141/1742-10
- ISSN
- 0361-1981
- eISSN
- 2169-4052
- Language
- English
- Date published
- 2001
- Academic Unit
- Civil and Environmental Engineering; International Programs
- Record Identifier
- 9984231904102771
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