TABLE OF CONTENTS
1 Introduction ................................................................................................................................. 6
1.1 Preface ................................................................................................................................. 6
1.2 Technical support ................................................................................................................ 6
1.3 Signal words and symbols in this manual.......................................................................... 7
1.3.1 Signal words ............................................................................................................. 7
1.3.2 Symbols .................................................................................................................... 8
2 Product safety ............................................................................................................................. 9
2.1 Optical safety ....................................................................................................................... 9
2.2 Electrical safety.................................................................................................................... 10
2.3 Safety precautions............................................................................................................... 11
2.4 Compliance .......................................................................................................................... 12
2.4.1 CDRH/EN60825-1 ..................................................................................................... 12
2.4.2 Low voltage directive ............................................................................................... 12
2.4.3 EMC directive............................................................................................................ 12
2.4.4 RoHS directive .......................................................................................................... 13
2.4.5 Declaration of Conformity ....................................................................................... 14
2.5 Intended use........................................................................................................................ 15
2.6 Unpacking ............................................................................................................................ 15
2.7 Disposal of old equipment.................................................................................................. 15
3
PICOSCALE fundamentals ......................................................................................................... 16
3.1 General setup and basic components................................................................................ 16
3.2 Measurement principle....................................................................................................... 17
3.2.1 Michelson interferometer........................................................................................ 17
3.2.2 Sinusoidal phase modulation.................................................................................. 18
3.2.3 Working range.......................................................................................................... 19
3.3 Traceability........................................................................................................................... 19
3.4 Environmental compensation............................................................................................. 19
3.4.1 Dead path................................................................................................................. 20
4 Basic Concepts ........................................................................................................................... 21
4.1 Modular architecture........................................................................................................... 21
4.1.1 Advanced trigger...................................................................................................... 21
4.1.2 Stream generator..................................................................................................... 21
4.1.3 Digital and analog GPIO, AquadB............................................................................ 23
4.1.4 Clock Generator ....................................................................................................... 23
4.1.5 Signal Generator ...................................................................................................... 23
4.1.6 Calculation System................................................................................................... 23
4.1.7 Counters ................................................................................................................... 23
4.1.8 Environmental Module ............................................................................................ 24
3
PicoScale User Manual
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