INCREASE OF STRAIN GAGE OUTPUT VOLTAGE SIGNALS ACCURACY USING VIRTUAL INSTRUMENT WITH HARMONIC EXCITATION |
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| Dalibor Kuhinek, Igor Zoric, Josip Butorac |
- Abstract:
- This paper describes the principle of harmonic excitation of strain gages in bridge configuration. This system's properties are mathematically determined and measurements are conducted with commutated excitation, AC and harmonic excitation - with and without filtering. The possibility of increasing the accuracy of output bridge voltage measurement by using harmonic excitation is shown.
- Keywords:
- harmonic excitation, resistive bridge, virtual instrument
- Download:
- IMEKO-WC-2009-TC4-290.pdf
- DOI:
- -
- Event details
- Event name:
- XIX IMEKO World Congress
- Title:
Fundamental and Applied Metrology
- Place:
- Lisbon, PORTUGAL
- Time:
- 06 September 2009 - 11 September 2009