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BS IEC 62899-302-3:2021

BS IEC 62899-302-3:2021

$142.49

Printed electronics – Equipment. Inkjet. Imaging-based measurement of drop direction

Published By Publication Date Number of Pages
BSI 2021 24
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IEC 62899-302-3:2021(E) specifies in-flight imaging methods for the measurement of the direction of ink drops jetted from inkjet print-heads using drop watchers. It does not apply to holographic or other interference techniques, or to any method assessing deposited ink drops. It is specific to drop-on-demand type inkjet print-heads (used in printed electronics equipment).

PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
5 FOREWORD
7 INTRODUCTION
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 Measurement methods
4.1 General
4.2 Process for projected angle using one double flash drop watcher (method 1)
10 4.3 Process for projected angle using one single flash drop watcher (method 2)
4.4 Process for projected angle using one strobe flash drop watcher (method 3)
4.5 Process for trajectory angles using two double flash drop watchers (method 4)
4.6 Process for trajectory angles using two single flash drop watchers (method 5)
4.7 Process for trajectory angles using two strobe flash drop watchers (method 6)
11 Annexe A (informative)Determination of jetted drop direction
A.1 Imaging-based measurements of jetted drop direction
12 Figures
Figure A.1 ā€“ Schematic representation of jetted drop positions below a jetting nozzle (0) for double flash (1-2), single flash (1-2Ź¹) and strobe flash (1Źŗ-2Źŗ) at different delays
13 Figure A.2 ā€“ Schematic representation of a) the projected angle Ī“ in 2-D and b)the trajectory angles Īø and Ļˆ in 3-D
14 Figure A.3 ā€“ Example of two orthogonally-mounted in-flight imaging drop watchers
15 A.2 Formulae used for imaging results from the measurements
A.2.1 Formulae for projected angle using one double flash drop watcher (method 1)
A.2.2 Formulae for projected angle using one single flash drop watcher (method 2)
A.2.3 Formulae for projected angle using one strobe drop watcher (method 3)
16 A.2.4 Formulae for trajectory angles using two double flash drop watchers (method 4)
17 A.2.5 Formulae for measured trajectory angles using two single flash drop watchers (method 5)
19 A.2.6 Formulae for measured trajectory angles using two strobe flash drop watchers (method 6)
20 A.3 Recording
22 Bibliography

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BS IEC 62899-302-3:2021
$142.49