Influence of AC Power Supply on Light Flicker Measurements

Carsten Dam-Hansen; Jiaye Li; Steve Coyne; Gillian Isoardi; Yoshi Ohno; Michael Scholand

doi:10.1109/LS2463127.2024.10881688

Influence of AC Power Supply on Light Flicker Measurements

Carsten Dam-Hansen
, Jiaye Li
, Steve Coyne
, Gillian Isoardi
, Yoshi Ohno
, Michael Scholand

National Institute of Standards and Technology
Light Naturally
ICCR London

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

Abstract

Accurate measurement of the short-term flicker indicator is important for avoiding visible flicker and for SSL products to comply with regulations. The IC2023 Interlaboratory Comparison of temporal light modulation measurements revealed large variations depending on the laboratory-grade AC power supplies used. A technical study using a halogen lamp was carried out, resulting in 45 measurements covering 19 different manufacturers of AC power supplies. It demonstrated large differences of measured values of more than one order of magnitude and a correlation with low frequency components is found. A new method to estimate the low frequency noise of a specific power supply and its influence on the measured short term flicker indicator is proposed. Setting a limit for this of 0.03 would make 50% of the power supplies in our sample fail. Laboratories can use this method to evaluate the suitability of their specific AC power supply, to determine their influence on short term flicker indicator measurements, and to support measurement uncertainty estimation.

Original language	English
Title of host publication	Proceedings of 2024 IEEE Sustainable Smart Lighting World Conference & Expo
Number of pages	3
Publisher	IEEE
Publication date	14 Nov 2024
Article number	10881688
ISBN (Print)	979-8-3315-4020-3
DOIs	https://doi.org/10.1109/LS2463127.2024.10881688
Publication status	Published - 14 Nov 2024
Event	2024 IEEE Sustainable Smart Lighting World Conference - Eindhoven University of Technology, Eindhoven, Netherlands Duration: 12 Nov 2024 → 14 Nov 2024 https://www.ssleindhoven.com/home

Conference

Conference	2024 IEEE Sustainable Smart Lighting World Conference
Location	Eindhoven University of Technology
Country/Territory	Netherlands
City	Eindhoven
Period	12/11/2024 → 14/11/2024
Internet address	https://www.ssleindhoven.com/home

Keywords

Power measurement
Fluctuations
Correlation
Power supplies
Measurement uncertainty
Estimation
Regulation
Frequency measurement
Noise measurement
AC power transmission

Access to Document

10.1109/LS2463127.2024.10881688

OpenUrl availability

Check availability in DTU Findit

Lighting Color and Radiation Laboratory
Dam-Hansen, C. (PI), Thorseth, A. (Project Participant), Corell, D. D. (Project Participant) & Poulsen, P. B. (Project Participant)
01/01/2004 → …
Project: Research

Cite this

@inproceedings{7f36f9950b7043b4aac718a8f76702ef,

title = "Influence of AC Power Supply on Light Flicker Measurements",

abstract = "Accurate measurement of the short-term flicker indicator is important for avoiding visible flicker and for SSL products to comply with regulations. The IC2023 Interlaboratory Comparison of temporal light modulation measurements revealed large variations depending on the laboratory-grade AC power supplies used. A technical study using a halogen lamp was carried out, resulting in 45 measurements covering 19 different manufacturers of AC power supplies. It demonstrated large differences of measured values of more than one order of magnitude and a correlation with low frequency components is found. A new method to estimate the low frequency noise of a specific power supply and its influence on the measured short term flicker indicator is proposed. Setting a limit for this of 0.03 would make 50\% of the power supplies in our sample fail. Laboratories can use this method to evaluate the suitability of their specific AC power supply, to determine their influence on short term flicker indicator measurements, and to support measurement uncertainty estimation.",

keywords = "Power measurement, Fluctuations, Correlation, Power supplies, Measurement uncertainty, Estimation, Regulation, Frequency measurement, Noise measurement, AC power transmission",

author = "Carsten Dam-Hansen and Jiaye Li and Steve Coyne and Gillian Isoardi and Yoshi Ohno and Michael Scholand",

year = "2024",

month = nov,

day = "14",

doi = "10.1109/LS2463127.2024.10881688",

language = "English",

isbn = "979-8-3315-4020-3",

booktitle = "Proceedings of 2024 IEEE Sustainable Smart Lighting World Conference \& Expo",

publisher = "IEEE",

address = "United States",

note = "2024 IEEE Sustainable Smart Lighting World Conference, LS24 ; Conference date: 12-11-2024 Through 14-11-2024",

url = "https://www.ssleindhoven.com/home",

}

TY - GEN

T1 - Influence of AC Power Supply on Light Flicker Measurements

AU - Dam-Hansen, Carsten

AU - Li, Jiaye

AU - Coyne, Steve

AU - Isoardi, Gillian

AU - Ohno, Yoshi

AU - Scholand, Michael

PY - 2024/11/14

Y1 - 2024/11/14

N2 - Accurate measurement of the short-term flicker indicator is important for avoiding visible flicker and for SSL products to comply with regulations. The IC2023 Interlaboratory Comparison of temporal light modulation measurements revealed large variations depending on the laboratory-grade AC power supplies used. A technical study using a halogen lamp was carried out, resulting in 45 measurements covering 19 different manufacturers of AC power supplies. It demonstrated large differences of measured values of more than one order of magnitude and a correlation with low frequency components is found. A new method to estimate the low frequency noise of a specific power supply and its influence on the measured short term flicker indicator is proposed. Setting a limit for this of 0.03 would make 50% of the power supplies in our sample fail. Laboratories can use this method to evaluate the suitability of their specific AC power supply, to determine their influence on short term flicker indicator measurements, and to support measurement uncertainty estimation.

AB - Accurate measurement of the short-term flicker indicator is important for avoiding visible flicker and for SSL products to comply with regulations. The IC2023 Interlaboratory Comparison of temporal light modulation measurements revealed large variations depending on the laboratory-grade AC power supplies used. A technical study using a halogen lamp was carried out, resulting in 45 measurements covering 19 different manufacturers of AC power supplies. It demonstrated large differences of measured values of more than one order of magnitude and a correlation with low frequency components is found. A new method to estimate the low frequency noise of a specific power supply and its influence on the measured short term flicker indicator is proposed. Setting a limit for this of 0.03 would make 50% of the power supplies in our sample fail. Laboratories can use this method to evaluate the suitability of their specific AC power supply, to determine their influence on short term flicker indicator measurements, and to support measurement uncertainty estimation.

KW - Power measurement

KW - Fluctuations

KW - Correlation

KW - Power supplies

KW - Measurement uncertainty

KW - Estimation

KW - Regulation

KW - Frequency measurement

KW - Noise measurement

KW - AC power transmission

U2 - 10.1109/LS2463127.2024.10881688

DO - 10.1109/LS2463127.2024.10881688

M3 - Article in proceedings

SN - 979-8-3315-4020-3

BT - Proceedings of 2024 IEEE Sustainable Smart Lighting World Conference & Expo

PB - IEEE

T2 - 2024 IEEE Sustainable Smart Lighting World Conference

Y2 - 12 November 2024 through 14 November 2024

ER -

Influence of AC Power Supply on Light Flicker Measurements

Abstract

Conference

Keywords

Access to Document

OpenUrl availability

Fingerprint

Projects

Lighting Color and Radiation Laboratory

Cite this