National Metrology Laboratory of the Philippines Digital Calibration Certificate: DigiCert |
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| Ahdrian Camilo C. Gernale, Nathaniel Ken A. Aquino, Roj Gian D. Gorospe, Mark Joseph C. Nicasio |
- Abstract:
- This paper presents the design and implementation of a system application named DigiCert, a Digital Calibration Certificate (DCC) application developed by the National Metrology Laboratory of the Philippines (NMLPhil) of the Industrial Technology Development Institute to modernize calibration workflows and enhance certificate management through standardized, machine-readable documentation. DigiCert improves the process of changing old formats like scanned images and PDF files into organized XML using the Physikalisch-Technische Bundesanstalt (PTB) DCC XML schema. It also allows for manual data entry with a real-time XML preview and can convert back and forth between XML and an easy-to-read PDF. The system employs advanced techniques to enhance images, detect text arranged in a grid pattern, and recognize characters in order to extract both tabular and free-form data from those images. For PDF, it uses Python libraries like pdfplumber and regex parsing to ensure high accuracy. A user-friendly graphical user interface guides the operator through import, edit, and export functions across five dedicated windows, enforcing DCC schema compliance and reducing administrative overhead. DigiCert’s flexible design and compliance with ISO/IEC 17025:2018 standards guarantee that the application can work well with other systems, keep track of changes, and maintain security through cryptographic signatures, making it a suitable choice for modern digital measurement and certified calibration labs.
- Download:
- IMEKO-TC6-2025-065.pdf
- DOI:
- 10.21014/tc6-2025.065
- 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:
- 03 September 2025 - 05 September 2025