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A travelling standard for the calibration of data-acquisition boards

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3 Author(s)
Carullo, A. ; Dipartimento di Elettronica, Politecnico di Torino, Italy ; Parvis, M. ; Vallan, A.

The large use of measurement systems based on data-acquisition boards makes the traceability-chain assurance a tricky problem, due to the difficulty in consistently calibrating such boards. In this paper the authors describe a travelling standard, which call be used for the calibration of many commercially available acquisition boards. By employing such a travelling standard, the calibration procedure can be remotely exercised by a calibration laboratory through the PC which hosts the board that has to be calibrated. In such a way the calibration results refer to environmental, software and hardware conditions that exactly match the board operating conditions. Furthermore, the board unavailability time is drastically reduced, with a consequent economic advantage for the board owner. The travelling standard embeds a micro-controller, which is responsible for the communication with the PC that hosts the board and for the board-stimulus generation, and a digital multimeter, which acts as a reference standard

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Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE  (Volume:3 )

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