Automated Calibration System with Digital Calibration Certificates Support

• 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.
• Download:

  IMEKO-TC6-2025-011.pdf
• DOI:

  tc6-2025.011

Event details:

• IMEKO TC:

  TC6
• Event name:

  TC6 M4Dconf2025
• Title:

  2025 IMEKO TC-6 International Conference on Metrology and Digital Transformation

• Place:

  Benevento, ITALY
• Time:

  3 September 2025 - 5 September 2025