Measuring and Comparing Waveforms of Temporal Light Modulation

Anders Thorseth; Johannes Lindén; A.S.J Bergen

doi:10.25039/x46.2019.OP02

Measuring and Comparing Waveforms of Temporal Light Modulation

Anders Thorseth^*, Johannes Lindén, A.S.J Bergen

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

158 Downloads (Pure)

Abstract

This paper presents a comparison of measurements of the waveforms of temporal light modulation (TLM) from 8 light sources performed by two different laboratories. The study focuses on the methodology of extracting relevant numerical differences between the measured waveforms. The methodology involves frequency matching, duration matching, selection of sampling interval, phase matching, normalization and results of the use of the methodology are presented. The results show that for some waveforms the comparison method can be used to practically explore equivalency of measurements.

Original language	English
Title of host publication	Proceedings of the 29th Quadrennial Session of the CIE
Publisher	CIE Commision Internationale de L'eclairage
Publication date	2019
Pages	7-16
DOIs	https://doi.org/10.25039/x46.2019.OP02
Publication status	Published - 2019
Event	29th Quadrennial Session of the International Commission on Illumination - Wardman Park Marriott, Washington DC, United States Duration: 14 Jun 2019 → 22 Jun 2019

Conference

Conference	29th Quadrennial Session of the International Commission on Illumination
Location	Wardman Park Marriott
Country	United States
City	Washington DC
Period	14/06/2019 → 22/06/2019

Keywords

Flicker
Temporal Light Artefacts
Signal analysis
Intercomparison
Temporal light modulation

Access to Document

10.25039/x46.2019.OP02

X046 OP02Final published version, 2.34 MB

Projects

2 Finished
2 Active

Global SSL quality requirements and test - IEA-4E-SSL

Dam-Hansen, C., Thorseth, A., Bay, A. & Kofod, C.

01/09/2019 → 01/08/2024

Project: Consultancy

Lighting metrology

Thorseth, A.

01/04/2007 → …

Project: Research

EMPIR 15SIB07 PhotoLED, Future photometry based on solid-state lighting products

Thorseth, A., Lindén, J., Dam-Hansen, C. & Corell, D. D.

01/09/2016 → 01/09/2019

Project: Research

File

Activities

1 Participating in or organising a conference
1 Membership of commitees, commissions, boards, councils, associations, organisations, or similar
1 Talks and presentations in private or public companies and organisations

International Commission on Illumination (External organisation)

Anders Thorseth (Member)

30 Jun 2019 → …

Activity: Membership › Membership of commitees, commissions, boards, councils, associations, organisations, or similar

Measuring and Comparing Waveforms of Temporal Light Modulation

Anders Thorseth (Speaker)

17 Jun 2019 → 22 Jun 2019

Activity: Talks and presentations › Talks and presentations in private or public companies and organisations

CIE 2019 29th Quadrennial Session

Anders Thorseth (Participant)

16 Jun 2019 → 22 Jun 2019

Activity: Attending an event › Participating in or organising a conference

Cite this

Thorseth, A., Lindén, J., & Bergen, A. S. J. (2019). Measuring and Comparing Waveforms of Temporal Light Modulation. In Proceedings of the 29th Quadrennial Session of the CIE (pp. 7-16). CIE Commision Internationale de L'eclairage . https://doi.org/10.25039/x46.2019.OP02

@inproceedings{fa937dabfa2b49219979ea271f314683,

title = "Measuring and Comparing Waveforms of Temporal Light Modulation",

abstract = "This paper presents a comparison of measurements of the waveforms of temporal light modulation (TLM) from 8 light sources performed by two different laboratories. The study focuses on the methodology of extracting relevant numerical differences between the measured waveforms. The methodology involves frequency matching, duration matching, selection of sampling interval, phase matching, normalization and results of the use of the methodology are presented. The results show that for some waveforms the comparison method can be used to practically explore equivalency of measurements.",

keywords = "Flicker, Temporal Light Artefacts, Signal analysis, Intercomparison, Temporal light modulation",

author = "Anders Thorseth and Johannes Lind{\'e}n and A.S.J Bergen",

year = "2019",

doi = "10.25039/x46.2019.OP02",

language = "English",

pages = "7--16",

booktitle = "Proceedings of the 29th Quadrennial Session of the CIE",

publisher = "CIE Commision Internationale de L'eclairage ",

note = "29th Quadrennial Session of the International Commission on Illumination ; Conference date: 14-06-2019 Through 22-06-2019",

}

Thorseth, A , Lindén, J & Bergen, ASJ 2019, Measuring and Comparing Waveforms of Temporal Light Modulation. in Proceedings of the 29th Quadrennial Session of the CIE. CIE Commision Internationale de L'eclairage , pp. 7-16, 29th Quadrennial Session of the International Commission on Illumination , Washington DC, United States, 14/06/2019. https://doi.org/10.25039/x46.2019.OP02

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AB - This paper presents a comparison of measurements of the waveforms of temporal light modulation (TLM) from 8 light sources performed by two different laboratories. The study focuses on the methodology of extracting relevant numerical differences between the measured waveforms. The methodology involves frequency matching, duration matching, selection of sampling interval, phase matching, normalization and results of the use of the methodology are presented. The results show that for some waveforms the comparison method can be used to practically explore equivalency of measurements.

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