Benutzerhandbuch für National Instruments Marine Instruments NI 5911

Inhaltsverzeichnis

• NI5911 User Manual

  1
• Support

  2
  • Internet

    2
  • Bulletin Board

    2
  • Fax-on-Demand

    2
  • Telephone (USA)

    2
  • International Offices

    2
  • Corporate Headquarters

    2
• Important Information

  3
• Conventions

  4
• Contents

  5
• Chapter 1 Taking Measurements with the NI 5911

  7
  • Connecting Signals

    7
  • Introduction to the VirtualBench-Scope Soft Front Panel

    8
    • Soft Front Panel Features

      9
  • Using the VirtualBench-SCOPE Soft Front Panel

    11
    • Acquiring Data

      11
• Chapter 2 Hardware Overview

  13
  • Measurement Fundamentals

    14
    • Differential Input

      14
      • Grounding Considerations

        14
      • Input Ranges

        15
      • Input Impedance

        15
      • Input Bias

        16
      • Input Protection

        16
    • AC Coupling

      16
  • Measurement Modes

    16
    • Oscilloscope Mode

      17
    • Flexible Resolution Mode

      17
  • Acquisition System

    18
    • Calibration

      19
      • Internal Calibration

        19
      • External Calibration

        20
    • Triggering and Arming

      20
      • Analog Trigger Circuit

        21
      • Trigger Hold-Off

        23
    • Memory

      24
    • Multiple Record

      25
    • Errors During Acquisition

      25
    • RTSI Bus Trigger and Clock Lines

      26
    • PFI Lines

      26
      • PFI Lines as Inputs

        26
      • PFI Lines as Outputs

        26
    • Synchronization

      27
• Appendix A Specifications

  28
• Appendix B Digitizer Basics

  36
• Appendix C Customer Communication

  43
• Glossary

  48
• Index

  55
• Figures

  6
  • Figure 1-1. NI 5911 Connectors

    8
  • Figure 1-2. VirtualBench-Scope Soft Front Panel

    9
  • Figure 1-3. Acquire Tab of VirtualBench-Scope Settings Dialog Box

    12
  • Figure 2-1. NI 5911 Block Diagram

    13
  • Figure 2-2. Noise-Free Measurements of Signal

    14
  • Figure 2-3. Trigger Sources

    21
  • Figure 2-4. Below-Level Analog Triggering Mode

    22
  • Figure 2-5. Above-Level Analog Triggering Mode

    22
  • Figure 2-6. High-Hysteresis Analog Triggering Mode

    23
  • Figure 2-7. Low-Hysteresis Analog Triggering Mode

    23
  • Figure 2-8. Timing with Hold-Off Enabled

    24
  • Figure 2-9. Multiple Buffer Acquisition

    25
  • Figure B-1. Sine Wave Demonstrating the Nyquist Frequency

    36
  • Figure B-2. Analog Bandwidth

    37
  • Figure B-3. 1 MHz Sine Wave Sample

    38
  • Figure B-4. Transfer Function of a 3-Bit ADC

    38
  • Figure B-5. Dynamic Range of an 8-Bit ADC with Three Different Gain Settings

    40
  • Figure B-6. Difficult Pulse Train Signal

    41
• Tables

  6
  • Table 2-1. Input Ranges for the NI 5911

    15
  • Table 2-2. Available Sampling Rates and Corresponding Bandwidth in Flexible Resolution Mode

    18