Development of open-source tools for the digital and machine-readable calibration of flowmeters with numerical displays

G. Esteves Coelho, A. Pinheiro, A. Silva Ribeiro, C. Simões, L. Martins

Abstract

This paper presents a methodology for obtaining digital machine-readable measurements from numerical displays images. The proposed method provides means to automate and digitalize a previously manual and labour-intensive laboratory procedure for flowmeters calibration. The proposed method allows to obtain machine- readable readings from remote numerical displays with available-off-the-shelf hardware and open- source software. By using smartphones for remote image capture and streaming and the Tesseract open-source OCR engine, is possible to leverage the infrastructure’s digital transition, improve procedures efficiency and effectiveness while promoting sustainable actions with cost reductions.

Keywords

Metrology, Automation, Process efficiency, Machine-readable data, Open-source programming.

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IMEKO-TC11-2023-03.pdf

DOI

10.21014/tc11-2023.03

IMEKO TC

TC11 - Measurement in Testing, Inspection and Certification

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