National Instruments NI 5102 U, V

Glossary

©NationalInstruments Corporation G-19 NI5102 User Manual

U

unipolar asi gnal range that is alwayspositive (for example, 0 to +10 V)

update theoutput equivalent of a scan. One or more analog or digital output

samples. Typically,the number of output samples in an update is equal to

the number of channels in the output group. For example,one pulse from

the update clock produces one update that sends one newsample to every

analog output channel in the group

update rate the number of output updates per second

V

V volts

VDC voltsdirect current

VDMAD virtualD MA driver

verticalsensitivity describes the smallest input voltage change the digitizer can capture

VI virtual instrument—(1) a combination of hardware and/or software

elements,t ypicallyused with a PC, that has the functionality of a classic

stand-alone instrument (2) a LabVIEW software module (VI), which

consists of a front panel user interface and a block diagram program

VIH volts,input hig h

VIL volts, input low

Vin voltsin

VOvolts,output

VOH volts,output hi gh

VOL volts, output l ow

Vpk-to-pk the maximum signal voltage minus the minimum signal voltage. This

reflects themaximum change in signal voltage and affects the vertical

sensitivityor gain of the inpu ta mplifier

Vref reference voltage

Contents

Main Page Important Information Warranty Copyright Trademarks WARNINGREGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class FCC/DOC Warnings Class A Compliance to EU Directives Contents Page About This Manual Conventions Used in This Manual Related Documentation Introduction About Your NI 5102 Acquiring Data with Your NI 5102 Figure1-1. TheRelationship Between the Programming Environment, NI-DAQ,and Your Hardware x/ Interactively Controlling your NI 5102 with the Scope Soft Front Panel Help. Note Press F1withthe Soft Front Panel running to access the Scope Soft Fron t Panel NI-SCOPE Driver NI-DAQ API NI Application Software Using PXI with CompactPCI Optional Equipment Installation and Configuration What You Need to Get Started Unpacking Installing the NI 5102 Hardware Configuration Digitizer Basics Understanding Digitizers Nyquist Theorem Analog Bandwidth Sample Rate Vertical Sensitivity ADC Resolution Record Length TriggeringOptions Making Accurate Measurements Page Page Understanding the Probe and Its Effects on Your Waveform Passive Probe How to Compensate Your Probe Page Active and Current Probes NationalInstruments Corporation 4-1 NI5102 User Manual Hardware Overview Figure4-1. NI 5102 (PCI, PXI, ISA) Block Diagram Chapter4 HardwareOverview NI5102 User Manual 4-2 ni.com Figure 4-2 showsa block diagram of the NI 5102 (PCMCIA, USB). I/O Connector Page Page Signal Connections Serial Communications Port (AUX) Analog Input Page ADC Pipeline Delay Acquisition Modes Posttrigger Acquisition Page Page Pretrigger Acquisition Page Page TriggerSources Figure4-10. ScanClock, Start Trigger, and Stop TriggerSignal Sources Analog TriggerCircuit TriggerHold-off Page Random Interleaved Sampling Calibration RTSI Bus Triggerand Clock Lines Figure4-12. RTSIBus Trigger Lines PFI Lines PFI Lines as Inputs PFI Lines as Outputs Page Master/Slave Operation Restrictions Connecting Devices Page A Specifications Input Characteristics Timebase System TransferCharacteristics Dynamic Characteristics S/H Characteristics Stability Triggers Analog Digital (PFI1 and PFI2) RTSI (NI 5102 for PCI, PXI, ISA Only) Power Consumption Physical Maximum Working Voltage Environmental Safety Electromagnetic Compatibility Calibration B Technical Support Resources Web Support NI Developer Zone Customer Education System Integration Worldwide Support Glossary Numbers/Symbols A B C Page D Page E F G H I Page K L M N O P Page R S Page T U V W Z Index A B C D E F H I J L M N O P R S T U V W