This document describes an objective stroboscopic effect visibility (SVM) meter, which can be applied for performance testing of lighting equipment under different operational conditions.<\/p>\n
The stroboscopic effects considered in this document are limited to the objective assessment by a human observer of visible stroboscopic effects of temporal light modulation of lighting equipment in general indoor applications, with typical indoor light levels (> 100 lx) and with moderate movements of an observer or nearby handled object (< 4 m\/s). Details on restriction of the applicability of the stroboscopic effect visibility measure is given in Clause A.1.<\/p>\n
For assessing unwanted stroboscopic effects in other applications, such as the misperception of rapidly rotating or moving machinery in an industrial environment for example, other metrics and methods can be required.<\/p>\n
The object of this document is to establish a common and objective reference for evaluating the performance of lighting equipment in terms of stroboscopic effect. Temporal changes in the colour of the light (chromatic effects) are not considered in this test. This document describes the methodology for SVM and does not define any limits.<\/p>\n
The objective method and procedure described in this document are based on CIE TN 006:2016 on temporal light artefacts (TLAs).<\/p>\n
The method described in this document can be applied to objectively assess the stroboscopic effect of lighting equipment that is powered from any type of source, AC mains, DC mains, battery fed or fed through an external dimmer.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, abbreviated terms and symbols 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3.2 Abbreviated terms <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 3.3 Symbols 4 General Figures Figure 1 \u2013 Schematic of the stroboscopic effect measurement method <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5 Laboratory and equipment requirements 5.1 Schematic of the measurement setup Figure 2 \u2013 Different possible applications for an SVM test <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.2 Laboratory and environmental conditions 5.3 Electrical power source 5.4 Optical test environment Figure 3 \u2013 Schematic of the TLA measurement method <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5.5 Light sensor and amplifier 5.6 Signals to be measured 5.7 Duration of the measurement 5.8 Signal processing 5.8.1 Anti-aliasing filter <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 5.8.2 Sampling frequency 5.8.3 Signal resolution 5.9 SVM calculation 5.10 Verification noise-level of the setup <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 6 Stroboscopic effect visibility meter 6.1 General 6.2 Verification 6.3 Evaluation of results <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 7 Test setup and operating conditions 7.1 General 7.2 Ageing 7.3 Mounting 7.4 Stabilization before measurement 7.5 Operation 8 General test procedure <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 9 Application-specific equipment, procedures and conditions 9.1 General 9.2 Phase cut dimmer compatibility test of lighting equipment 9.3 Controlgear testing Figure 4 \u2013 Dimmer compatibility testing Figure 5 \u2013 Controlgear testing <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 9.4 In-situ testing 10 Test report 11 Measurement uncertainties 11.1 General 11.2 Verification tests 11.2.1 General 11.2.2 Stroboscopic effect visibility meter 11.2.3 Electrical power source parameters <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 11.2.4 Electromagnetic compatibility and test environment 11.2.5 Light sensor and amplifier 11.2.6 Overall noise-level of the setup 11.2.7 Repeatability 11.3 Quality assurance <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Annex A (normative) Specification of the stroboscopic effect visibility meter A.1 Background <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | A.2 Detailed specifications of the stroboscopic effect meter A.2.1 Schematic of the SVM meter A.2.2 Block a: illuminance adapter Figure A.1 \u2013 Structure of the stroboscopic effect visibility meter <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | A.2.3 Block b: calculation of spectrum A.2.4 Block c: weighting with the stroboscopic effect sensitivity curve A.2.5 Block d: summation of the weighted spectrum <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | A.3 Numerical implementation of SVM Figure A.2 \u2013 SVM sensitivity threshold T <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | A.4 Example A.5 Verification waveform of the stroboscopic effect meter <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Figure A.3 \u2013 Example of an illuminance signal with a ripple <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | A.6 Example of SVM implementation in MATLAB\u00ae Tables Table A.1 \u2013 Specification of the parameters of the verification waveforms <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Annex B (informative) Uncertainty considerations B.1 General B.2 General symbols B.3 Measurand B.4 Influence quantities <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Figure B.1 \u2013 Fishbone diagram representing the categories of influencequantities contributing to the uncertainty of the SVM measurement <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Table B.1 \u2013 Influence quantities and their recommended tolerances <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Annex C (informative) Examples of test results C.1 SVM measurement results of conventional lighting equipment Table C.1 \u2013 Numerical results of SVM calculations of conventional lighting equipment <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | C.2 SVM test under dimming conditions Figure C.1 \u2013 Normalized light ripple of conventional lighting equipment <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Figure C.2 \u2013 Graphical SVM results of four samples of lighting equipmentunder dimming conditions Table C.2 \u2013 Numerical results of SVM calculations of four samples oflighting equipment under dimming conditions <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Equipment for general lighting purposes. Objective test method for stroboscopic effects of lighting equipment<\/b><\/p>\n |