Automated Calibration System with Digital Calibration Certificates Support

Serhii Kursin, Oleh Velychko, Ihor Pototskyi, Andrii Bachynskyi

Abstract

This paper presents the development of an automated system for the calibration of radio-frequency (RF) power meters, addressing the need for accurate, traceable, and efficient calibration in the RF domain. The system is based on a Rohde & Schwarz signal generator and reference power sensors, operating over a frequency range up to 43.5 GHz. A Python-based software solution enables full automation of the calibration process, including signal level auto-balancing and uncertainty estimation. Calibration results – such as calibration coefficients, linearity, and Voltage Standing Wave Ratio (VSWR) – are formatted into Digital Calibration Certificates (DCCs) using XML. DCCs offer a reliable, machine-readable solution for integration into Industry 4.0 systems, enhancing traceability and reducing human error. The proposed approach improves calibration efficiency and supports the global shift toward digital metrology. A user interface and example XML structure are also presented.

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IMEKO-TC6-2025-011.pdf

DOI

10.21014/tc6-2025.011

IMEKO TC

TC6 - Digitalization

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