用户手册 — National Instruments SC-2040

目录

• SC-2040 User Manual

  1
• Important Information

  3
  • Warranty

    3
  • Copyright

    3
  • Trademarks

    3
  • Warning

    4
• Contents

  5
• About This Manual

  8
  • Organization of This Manual

    8
  • Conventions Used in This Manual

    9
  • The National Instruments Documentation Set

    9
  • Related Documentation

    10
  • Customer Communication

    10
• Chapter 1 Introduction

  11
  • About the SC-2040

    11
  • What You Need to Get Started

    11
  • Software Programming Choices

    12
    • LabVIEW and LabWindows Application Software

      12
    • NI-DAQ Driver Software

      12
    • Register-Level Programming

      14
  • Optional Equipment

    14
  • Unpacking

    14
• Chapter 2 Configuration and Installation

  15
  • Board Configuration

    15
    • Supplementary Configuration Information

      20
      • Power Supply Selection

        20
      • Shield Selection

        20
      • DAQ Board Ground Isolation Selection

        20
    • Gain Selection

      20
    • Input Mode Selection

      21
  • Installation

    22
  • Power-on Sequence

    22
• Chapter 3 Signal Connections

  23
  • I/O Connector Pin Description

    23
    • Signal Connection Description

      26
    • Analog Signal Inputs

      29
      • DC-Coupled Inputs

        29
      • AC-Coupled Signals

        30
        • Analog Input Ranges

          32
    • Digital Signal Inputs

      33
    • Monitoring Signal Outputs

      33
  • Other Connection Considerations

    33
• Chapter 4 Theory of Operation

  34
  • Functional Overview

    34
  • Analog Circuitry

    36
    • Input Protection

      36
    • Amplification

      36
    • Track-and-Hold (T/H) Circuitry

      36
      • Triggering from the DAQ Board

        37
      • External Triggering

        38
      • Output Connection

        39
      • Power Supply

        39
• Chapter 5 Calibration Procedures

  40
  • Software Calibration

    40
    • Offset Adjustment

      40
    • Gain Adjustment

      41
    • Linearity Adjustment

      41
  • Hardware Calibration

    41
• Appendix A Specifications

  44
  • Analog Input

    44
    • Input Characteristics

      44
    • Transfer Characteristics

      44
    • Amplifier Characteristics

      45
    • Dynamic Characteristics

      45
    • S/H Characteristics

      46
    • Stability

      46
  • Power Requirement

    46
  • Physical

    46
  • Environment

    46
• Appendix B Customer Communication

  47
• Glossary

  51
• Index

  53
• Figures

  7
  • Figure 1-1. The Relationship between the Programming Environment,

    13
  • Figure 2-1. SC-2040 Parts Locator Diagram

    16
  • Figure 3-1. SC-2040 I/O Connectors J11 and J12

    24
  • Figure 3-2. SC-2040 Signal Routing

    28
  • Figure 3-3. Ground-Referenced Signal Connection

    29
  • Figure 3-4. Floating Signal Connection

    30
  • Figure 3-5. Ground-Referenced AC-Coupled Signal Connection

    31
  • Figure 3-6. Ground-Offset AC-Coupled Signal Connection

    31
  • Figure 3-7. Floating AC-Coupled Signal Connection

    32
  • Figure 4-1. SC-2040 Block Diagram

    35
  • Figure 4-2. T/H Amplifier Hold Settling Time and Track Acquisition Time

    37
  • Figure 4-3. MIO-16E Controlled Triggering

    38
  • Figure 4-4. External Triggering

    39
• Tables

  7
  • Table 2-1. Power Supply Selection

    17
  • Table 2-2. Shield Selection

    18
  • Table 2-3. DAQ Board Ground Isolation Selection

    18
  • Table 2-4. Channel Gain Selection

    19
  • Table 2-5. Channel Input Mode

    19
  • Table 2-6. Gain Switches for Each Channel

    20
  • Table 2-7. Switch Settings for Gain Selection

    21
  • Table 2-8. Input Mode Selection Jumpers

    21
  • Table 3-1. Pin Assignments for Connectors J11 and J12

    25
  • Table 3-2. Input Connectors Signal Summary

    26
  • Table 3-3. Output Connectors (J11 and J12) Signal Summary

    26
  • Table 5-1. Calibration Component Identification

    42