National Instruments SC Express PXIe-4331, Руководство пользователя

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Contents
NI PXIe-4330/4331 User Manual vi ni.com
Timing and Triggering .................................................................................... 2-29
Sample Clock Timebase ................................................................... 2-29
External Clock .................................................................................. 2-29
Digital Triggering ............................................................................. 2-30
Analog Triggering ............................................................................ 2-30
Triggering and Filter Delay .............................................................. 2-33
Synchronization .............................................................................................. 2-33
Reference Clock Synchronization .................................................... 2-33
TEDS............................................................................................................... 2-35
Configuring and Using TEDS in Software....................................... 2-35
Accessory Auto-Detection .............................................................................. 2-35
Chapter 3
NI SC Express Considerations
NI SC Express Clock and Trigger Signals .................................................................... 3-1
PXIe_CLK100 ................................................................................................ 3-1
PXIe_SYNC100.............................................................................................. 3-1
PXI_CLK10 .................................................................................................... 3-1
PXI Triggers.................................................................................................... 3-1
PXI_STAR Trigger ......................................................................................... 3-2
PXIe_DSTAR<A..C> ..................................................................................... 3-2
Trigger Filters ................................................................................................. 3-3
Appendix A
Offset Nulling (Bridge Balancing)
Appendix B
Technical Support and Professional Services
Figures
Figure 2-1. Basic Wheatstone Bridge Circuit Diagram........................................... 2-1
Figure 2-2. Connecting Remote Sense Wires to the NI PXIe-4330/4331 ............... 2-3
Figure 2-3. Quarter-Bridge Type I Measuring Axial and Bending Strain............... 2-4
Figure 2-4. Quarter-Bridge I Circuit Diagram......................................................... 2-5
Figure 2-5. Quarter-Bridge Type II Measuring Axial and Bending Strain ............. 2-6
Figure 2-6. Quarter-Bridge II Circuit Diagram ....................................................... 2-7
Figure 2-7. Half-Bridge Type I Measuring Axial and Bending Strain.................... 2-8
Figure 2-8. Half-Bridge Type I Circuit Diagram..................................................... 2-9
Figure 2-9. Half-Bridge Type II Rejecting Axial and Measuring Bending
Strain ..................................................................................................... 2-10
Figure 2-10. Half-Bridge Type II Circuit Diagram ................................................... 2-11