Design of Virtual Calibrator for Teaching Metrology in Higher Education

The paper elaborates the design and implementation of a low-cost virtual calibration instrument intended for teaching metrology in the higher education. Two major aspects have been analyzed: the virtual instrument programming architecture, and metrological evaluation of the proposed solution consisting of a virtual instrument and power amplifier. It has been shown that the applied programming architecture allows implementation of most functionalities provided by the modern calibration instruments. The experimental measurements suggest that the system offers good stability and low non-linearity, which can be exploited for calibration of low to medium-accuracy instruments and for teaching metrology in higher education.