This part of IEC 62496-2 defines a test method for folding flexibility inspection of flexible opto-electric circuits with a MIT folding endurance tester and presents a guideline for a step stress test method for finding the predetermined minimum mechanical folding radii below which the flexible opto-electric circuits can be damaged by intended folding distortion. Here, test samples are used instead of products for the flexibility test of their flexible opto-electric circuits, and the test samples have the same layer structure as the products.<\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | European foreword Endorsement notice <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Annex ZA (normative) Normative references to international publications with their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4 Apparatus 4.1 General description Figures Figure 1 \u2013 Schematic diagram of flexible opto-electric circuit board (top view) <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4.2 Flexibility tester for flexibility test of FOECBs 4.2.1 FOECBs test sample of fibre optical types 4.2.2 FOECBs test sample of planer waveguide optical circuit types Figure 2 \u2013 Overview of the folding jig Figure 3 \u2013 Schematic diagram of the flexibility test system for fibre optical circuits <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.3 O-E signal control source 4.4 Laser source 4.5 Photo detector 4.6 Folding jig Figure 4 \u2013 Schematic diagram of the flexibility test systemfor planar waveguide optical circuits <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.7 Relay switch 4.8 Main controller 5 Test sample 5.1 FOECB test samples of optical fibre-types Figure 5 \u2013 Flexibility folding jigs (from the left, folding radius r is1,0 mm, 2,0 mm, 3,0 mm, 4,0 mm, 5,0 mm and 10,0 mm) <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.2 FOECB test samples of planar optical waveguide-types Figure 6 \u2013 Schematic diagram of FOECB test samples of optical fibre-types <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Figure 7 \u2013 Schematic diagram of FOECB test samplesof planar optical waveguide-types <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 6 Procedures 6.1 For test samples of optical fibre-types 6.1.1 Preparing test samples 6.1.2 Initial optical and electrical performance measurement 6.1.3 Setting the test sample <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 6.1.4 Flexibility measurement 6.1.5 Final optical and electrical performance measurement 6.1.6 Mechanical performance measurement 6.2 For test samples of the planar optical waveguide-types 6.2.1 Preparing test samples 6.2.2 Initial optical and electrical performance measurement <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 6.2.3 Setting the test sample 6.2.4 Flexibility measurement 6.2.5 Final optical and electrical performance measurement <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 6.2.6 Mechanical characteristic measurement 7 Report <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Annex A (informative)Detail requirement for structure of FOECB test samples of optical fibre-types <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Annex B (informative)Requirement for structure of FOECB test samplesof planar optical waveguide-types Figure B.1 \u2013 Schematic diagram of the flexibility test system forplanar waveguide optical circuits <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Annex C (informative)Guideline for flexibility folding jig setting conditionsof FOECB test samples Figure C.1 \u2013 An example of measurement result ofoptical loss versus bending diameter <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Optical circuit boards. Basic test and measurement procedures – Flexibility test for flexible opto-electric circuits<\/b><\/p>\n |