A New Calibration Set-Up for the Dynamic Calibration of Bridge Amplifiers from DC up to 10 kHz |
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| Leonard Klaus, M. Florian Beug, Thomas Bruns |
- Abstract:
- Measurements of mechanical quantities are often carried out with transducers having a bridge output. These output signals are conditioned using bridge amplifiers. If dynamically changing quantities are going to be measured traceably, the bridge amplifier has to be calibrated dynamically.
This paper describes a dynamic bridge amplifier calibration set-up based on the new PTB dynamic bridge standard. The calibration is carried out by synchronous sampling of the bridge amplifier output voltage and a reference signal provided by the calibrated dynamic bridge standard. The dynamic bridge standard enables calibrations in a frequency range from DC (static calibration) up to 10 kHz. An overview of the different measurement uncertainty contributions is given and first measurement results show a good agreement with a previously established measurement set-up. - Keywords:
- dynamic bridge amplifier calibration, traceability, dynamic measurement, dynamic bridge standard
- Download:
- IMEKO-TC3-2017-011.pdf
- DOI:
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