National Instruments NI 5911 E, F, G, H

Glossary

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National Instruments Corporation G-3 NI 5911 User Manual

DC direct current

default setting a default parameter value recorded in the driver. In many cases, the default

input of a control is a certain value (often 0) that means use the current

default setting.

differential input an analog input consisting of two terminals, both of which are isolated from

computer ground, whose difference is measured

double insulated a device that contains the necessary insulating structures to provide electric

shock protection without the requirement of a safety ground connection

drivers software that controls a specific hardware instrument

E

EEPROM electrically erasable programmable read-only memory—ROM that can be

erased with an electrical signal and reprogrammed

F

filtering a type of signal conditioning that allows you to filter unwanted signals from

the signal you are trying to measure

G

gain the factor by which a signal is amplified, sometimes expressed in decibels

H

hardware the physical components of a computer system, such as the circuit boards,

plug-in boards, chassis, enclosures, peripherals, cables, and so on

harmonics multiples of the fundamental frequency of a signal

Hz hertz—per second, as in cycles per second or samples per second

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Contents

Main Page Important Information Warranty Copyright Trademarks WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS Conventions ! Contents Chapter 1 Taking Measurements with the NI 5911 Chapter 2 Hardware Overview Page Taking Measurements with the NI 5911 Connecting Signals Introduction to the VirtualBench-Scope Soft Front Panel Soft Front Panel Features Page Using the VirtualBench-SCOPE Soft Front Panel Acquiring Data Page National Instruments Corporation 2-1 NI 5911 User Manual Hardware Overview Figure 2-1. NI 5911 Block Diagram Measurement Fundamentals Differential Input Grounding Considerations Input Ranges Input Impedance Input Bias Input Protection AC Coupling Measurement Modes Oscilloscope Mode Flexible Resolution Mode Acquisition System Calibration Internal Calibration External Calibration Triggering and Arming Analog Trigger Circuit Page Trigger Hold-Off Memory Multiple Record Errors During Acquisition RTSI Bus Trigger and Clock Lines PFI Lines PFI Lines as Inputs PFI Lines as Outputs Synchronization A Specifications NI 5911 Acquisition System Page Acquisition Characteristics Accuracy Common-Mode Characteristics Filtering Dynamic Range Noise (excluding input-referred noise) Distortion Timebase System Triggering Systems Acquisition Modes Power Requirements Physical Operating Environment Storage Environment EMC Compliance Calibration Digitizer Basics Understanding Digitizers Nyquist Theorem Analog Bandwidth Sample Rate Vertical Sensitivity ADC Resolution Record Length Triggering Options Making Accurate Measurements Appendix B Digitizer Basics National Instruments Corporation B-5 NI 5911 User Manual Figure B-5. Dynamic Range of an 8-Bit ADC with Three Different Gain Settings Page Page C Customer Communication Electronic Services Bulletin Board Support FTP Support Fax-on-Demand Support Telephone and Fax Support Country Telephone Fax Technical Support Form NI 5911 Hardware and Software Configuration Form National Instruments Products Other Products Documentation Comment Form Title: Edition Date: Part Number: Mail to: Technical Publications Fax to: Technical Publications Glossary Numbers/Symbols A B C D E F G H I M N O P R S T V W Index A B C D E F G H I M N O P R S T V