©NationalInstruments Corporation vii NI5620 User Manual
Contents
Chapter 1
Taking Measurements with the NI 5620
Installingthe Software andHardware ...........................................................................1-1
AcquiringData withYour NI 5620 ...............................................................................1-2
ProgrammaticallyControlling YourNI 5620 ..................................................1-2
SafetyInformation .........................................................................................................1-2
Chapter 2
Hardware Overview
How the NI 5620 Works................................................................................................2-1
ConnectingSignals ..........................................................................................2-2
Conditioning the Signal—Impedance, Dither, Gain, and AC Coupling......... 2-3
InputImpedance ................................................................................2-3
Dither................................................................................................2-3
Digitizing the Signal—The ADC ....................................................................2-3
Incorporatingthe DDC....................................................................................2-4
StoringData i n Memory..................................................................................2-4
BlockDiagram ...............................................................................................................2-5
OtherFeatures ................................................................................................................2-6
Multiple-RecordAcquisitions .........................................................................2-6
Triggering........................................................................................................2-7
Calibration.....................................................................................................................2-7
Synchronizing Multiple PX I Devices ............................................................................ 2-8
Appendix A
Specifications
Appendix B
Technical Support Resources
Glossary
Index