skip to main content

Title: High temperature measurement using very high shutter speed to avoid image saturation

This paper explores the adaptation of the two-colour principle to develop a high-speed colour temperature correlation system, which is able to cover a range of temperature that is challenging to achieve before. A colour digital camera has built in RGB filters. It is possible to measure the temperature from the ratio of intensity of the green and red pixels using the two-colour principle based on the expansion of the Plank’s radiation law. In this study, experiments were carried out using a temperature calibrated tungsten ribbon lamp which can be tuned to vary from 1300 to 2200°C. Using very high shutter speed and small aperture, the high-speed camera successfully captured the tungsten ribbon without image saturation at the full temperature scale. Tests have been carried out at different temperature and camera settings. The sensitivity and errors have been analysed, and experiment results demonstrate the potential of using very high shutter speed is available for measuring the temperature even beyond 2200°C.
Authors:
;  [1]
  1. Department of Mechanical Engineering, Sir Frederick Mappin Building, University of Sheffield, Sheffield, S1 3JD (United Kingdom)
Publication Date:
OSTI Identifier:
22271100
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1592; Journal Issue: 1; Conference: 8. international symposium on measurement techniques for multiphase flows, Guangzhou (China), 13-15 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; APERTURES; CAMERAS; COLOR; CORRELATIONS; FILTERS; IMAGES; LIGHT BULBS; PERFORMANCE TESTING; SENSITIVITY; SHUTTERS; TEMPERATURE MEASUREMENT; TEMPERATURE RANGE 1000-4000 K; TUNGSTEN; VELOCITY