Emissivity compensated spectral pyrometry-algorithm and sensitivity analysis
Journal article, 2014

In order to solve the problem of non-contact temperature measurements on an object with varying emissivity, a new method is herein described and evaluated. The method uses spectral radiance measurements and converts them to temperature readings. It proves to be resilient towards changes in spectral emissivity and tolerates noisy spectral measurements. It is based on an assumption of smooth changes in emissivity and uses historical values of spectral emissivity and temperature for estimating current spectral emissivity. The algorithm, its constituent steps and accompanying parameters are described and discussed. A thorough sensitivity analysis of the method is carried out through simulations. No rigorous instrument calibration is needed for the presented method and it is therefore industrially tractable.

spectrophotometer

DIFFERENTIATION

P1906

ANALYTICAL CHEMISTRY

emissivity

EINIER J

varying emissivity

temperature

multispectral pyrometry

V44

1972

Author

Petter Hagqvist

University West

Fredrik Sikström

University West

Anna-Karin Christiansson

University West

Bengt Lennartson

Chalmers, Signals and Systems, Systems and control, Automation

Measurement Science and Technology

0957-0233 (ISSN) 1361-6501 (eISSN)

Vol. 25 2

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1088/0957-0233/25/2/025011

More information

Latest update

4/18/2018