Journal Published Online: 19 July 2022
Volume 6, Issue 1

Design and Development of Novel Computer Vision-Based Automatic Calibration System for Analog Dial Pressure Gauge

CODEN: SSMSCY

Abstract

Pressure gauge calibration refers to comparing the standard and test gauge to determine the error percentage. The reading accuracy of the analog dial pressure gauge is found in the conventional method through manual calculations and then tabulating the values in the calibration certificate. The present study is undertaken to increase the accuracy level of the analog dial pressure gauges. A new automated computer-based method is proposed to calibrate the meters more accurately than the conventional method. The indicated value of the pressure gauge is obtained through the angular position of the pointer and the error value is identified by comparing both standard and test gauge values. In this work, Red, Green, Blue (RGB) images of standard and test pressure gauges are acquired through a high-definition camera. After the image processing operations, the pointer orientation of the indicatoris identified, and the indicated values are calculated. The computer-vision-based automatic calibration system is applied in a 0–100-psi (0–689.476 kPa) analog dial pressure gauge, and three trials were performed to determine the accuracy. The computer vision technique improved accuracy, varying from 97 % to 98 % compared with the conventional manual observation method. The observed results have improved repeatability and accuracy with the proposed computer-vision-based system.

Author Information

Prasad, S. J. Suji
Department of Electronics and Instrumentation Engineering, Kongu Engineering College (Autonomous), Perundurai, Erode, India
Indra, J.
Department of Electronics and Communication Engineering, KPR Institute of Engineering and Technology (Autonomous), Arasur, Coimbatore, India
Thangatamilan, M.
Department of Electronics and Instrumentation Engineering, Kongu Engineering College (Autonomous), Perundurai, Erode, India
Meena, Radhey Shyam
Ministry of New and Renewable Energy, New Delhi, India
Muthusamy, Suresh
Department of Electronics and Communication Engineering (Autonomous), Kongu Engineering College, Perundurai, Erode, India
Panchal, Hitesh
Department of Mechanical Engineering, Government Engineering College, Patan, Gujarat, India
Krishnamoorthy, Mahendran
Department of Electrical and Electronics Engineering, Jansons Institute of Technology, Karumathampatti, Coimbatore, India
Sadasivuni, Kishor Kumar
Centre for Advanced Materials, Qatar University, Doha, Qatar
Doshi, Manish
Member of Institution of Engineers, Ahmedabad, Gujarat, India
Pages: 17
Price: Free
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Details
Stock #: SSMS20210019
ISSN: 2520-6478
DOI: 10.1520/SSMS20210019