FIELD: measurement equipment.
SUBSTANCE: use of two calibration media is provided at calibration of the measurement system. The first high-quality calibration medium (10) with a standard reference, which does not depend on the calibrated measurement system, is used once, for example at manufacture or after repair of the measurement system at the first calibration stage, at which the measurement system is calibrated and adjusted. At the next calibration stage, the second calibration medium with a non-standard reference is used, which is a component of the measurement system, for the purpose of shaping and storing measurement signals from the second calibration medium (6) at least with one sensor (3) of the measurement system. In the calibration mode, when performing subsequent calibration processes, only the second calibration medium is used for the purpose of repeated shaping of measurement signals from the second calibration medium with sensor (3). In case of discrepancies between measurement signals formed at subsequent calibrations and stored measurement signals formed at the second calibration stage, sensor (3) is adjusted; for that purpose, correction coefficients compensating the detected differences are determined.
EFFECT: invention ensures the possibility of accurate and long-term stable calibration.
2 dwg, 7 cl
