Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)

# The Relationship Between Measurable Temperature by Infrared Thermometer with the Distance to Heat Source

Authors
Nani Yuningsih1, *, Sardjito2
1Refrigeration and Air Conditioning Engineering Department, Politeknik Negeri Bandung, Bandung 40012, Indonesia
2Electrical Engineering Department, Politeknik Negeri Bandung, Bandung 40012, Indonesia
*Corresponding author. Email: nani.yuningsih@polban.ac.id
Corresponding Author
Nani Yuningsih
Available Online 23 November 2021.
DOI
10.2991/aer.k.211106.051How to use a DOI?
Keywords
non-contact temperature measurement; radiation; infrared
Abstract

Temperature measurements can be performed on contact and non-contact basis. In certain situations, direct contact temperature measurement of objects is difficult, so they should be performed without touching the objects. The phenomenon of heat transfer between the objects and their environment causes a difference between the temperature of the objects, especially on the surface of the objects, and the media temperature around the objects. This fact demands a transformation between non-contact measured temperatures with the temperature of the objects. In this study, the problem of heat transfer from heat source objects to surrounding media is developed to determine the media temperature around the object. The results are experimentally tested to determine the transformation between contact object temperature measurement and non-contact temperature measurement. A model was then designed that stated the relationship between measurable temperature and measurement distance from the source. The obtained temperature distribution model was matched with the results of non-contact measurement experiments at the Applied Physics Laboratory of Politeknik Negeri Bandung. Measured temperature readings by infrared thermometers depend on distance from the source, with temperature models inversely proportional to the inverse squared distance. From this study, the correlation coefficient between the measured temperature and the distance of the heat source for non-contact measurements and contact measurements at distances more than 4 cm respectively are 0.96 and 0.92. This shows a strong relationship between the measured temperature and the distance from the heat source.

Copyright
© 2021 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

Volume Title
Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
Series
Advances in Engineering Research
Publication Date
23 November 2021
ISBN
10.2991/aer.k.211106.051
ISSN
2352-5401
DOI
10.2991/aer.k.211106.051How to use a DOI?
Copyright
© 2021 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

### Cite this article

TY  - CONF
AU  - Nani Yuningsih
AU  - Sardjito
PY  - 2021
DA  - 2021/11/23
TI  - The Relationship Between Measurable Temperature by Infrared Thermometer with the Distance to Heat Source
BT  - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
PB  - Atlantis Press
SP  - 324
EP  - 327
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.211106.051
DO  - 10.2991/aer.k.211106.051
ID  - Yuningsih2021
ER  -