Smart adaptable strain gage conditioner: hardware/software implementation

In this paper, a smart adaptable strain gage conditioning system is presented. The system is based on analog and digital processing to meet particularly adaptability, flexibility, and complex computations required in calibration and compensation algorithms of apparent strain in strain gage. Analog p...

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Bibliographic Details
Published in:IEEE sensors journal 2004-04, Vol.4 (2), p.262-267
Main Authors: Poussier, S., Rabah, H., Weber, S.
Format: Article
Language:English
Subjects:
Analog computers
Architecture
Calibration
Capacitive sensors
Computer architecture
Computer programs
Conditioning
Digital
Engineering Sciences
Field programmable gate arrays
Filtering
Flexibility
Hardware
Signal processing
Software
Springs
Strain gages
Temperature
Temperature compensation
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Summary:In this paper, a smart adaptable strain gage conditioning system is presented. The system is based on analog and digital processing to meet particularly adaptability, flexibility, and complex computations required in calibration and compensation algorithms of apparent strain in strain gage. Analog processing, with adequate amplification and filtering, is used to adjust the strain gage and temperature signals to the full scale of the converters. The flexibility of the digital processing is used to compute automatic calibration and temperature compensations when strain gage and spring element characteristics are known or not. This new architecture, consisting of hardware and software functionality, is implemented on an FPGA including a core processor. Description of the methodology developed for the temperature compensation of the system, the architecture implementation results, and adaptation of the system are reported.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2004.823662