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LabVIEW Sound and Vibration Analysis 4.0 LabVIEW声音和振动工具包4.0下载 适用LabVIEW7.1版

LabVIEW声音和振动工具包提供了音频测试、声学测量和振动测量应用所需的函数和显示控件。
LabVIEW声音和振动工具包是一个软件附加组件，包含易于使用的功率谱、正弦扫频和倍频程分析VI。它还可进行音频和失真测量、频率分析、频率响应测量和瞬态分析。该工具包还对分析解决方案进行了更新，以符合不断发展的IEC标准。LabVIEW声音和振动工具包提供了50多个可立即运行的LabVIEW示例，旨在帮助用户快速开始开发应用程序。

SV工具包，在2019及之后版本，使用32位、64位分开安装文件的方式，在2018及之前的版本则使用同一个安装文件，即同一安装文件可支持32位、64位LabVIEW，与VISION模块类似。具体的请查看下面的自述文件。

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LabVIEW Sound and Vibration Analysis 4.0 LabVIEW声音和振动工具包4.0下载

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NI LabVIEW Sound and Vibration Toolkit ReadmeVersion 4.0

Overview

• Scaling a signal to engineering units (EU)

• Calibrating a measurement channel

• Applying weighting filters

• Integrating time-domain signals

• Performing level measurements

• Performing frequency analysis

• Performing fractional-octave analysis

• Performing swept-sine measurements

• Performing single-tone measurements

• Performing distortion analysis

• Performing transient analysis

• Performing limit and mask testing

• Displaying results
  

New Features

• Express VIs, located on the S&V Express Measurements palette, perform the most common sound and vibration measurements:
  

  – Sound level measurements
  – Vibration level measurements
  – Fractional-octave analysis
  – Power spectrum
  – Zoom power spectrum
  – Frequency response function
  – Spectrum peak search
  – Power in band measurements
  – Filtering
  – Limit testing

• The SVL Measure Propagation Delay (DAQmx) VI supports a Maximum Length Sequence (MLS) test signal.

• The new SVT Sound Level VI performs several types of sound level measurements at the same time: exponential, Leq, running Leq, and peak.

• The new SVT Vibration Level VI performs several types of vibration levels at the same time: RMS, running RMS, peak, max-min, and exponential.

• The new SVL Max-Min Level VI measures maximum, minimum, and maximum minus minimum amplitudes.

• The new SVT Octave Analysis VI, SVT Third-octave Analysis VI, and SVT Fractional-octave Analysis VI offer compliance with both the IEC 1260:1995, class 1 and the new ANSI S1.11-2004, class 1 standards.

• The new SVT Get Octave Value VI and SVT Get Octave Subset VI extract a single value or a range of values from an octave spectrum.

• The new SVT FFT Spectrum (Complex) VI returns the complex FFT spectrum so that any window or averaging can be applied before performing distortion or single tone measurements such as SNR, SINAD, THD, THD+N, gain, phase, cross-talk, noise, dynamic range, or SFDR.

• The SVT Frequency Response (Mag-Phase) VI accepts different input data types to compute the frequency response function between a single stimulus and a single response, a single stimulus and multiple responses, multiple stimuli and a single response, and multiple stimuli and multiple responses.

• The SVL Unit Conversion VI converts magnitude and power spectra to power spectral density (PSD) and vice versa.

• The new SVR SNR without Harmonics VI computes the signal-to-noise ratio (SNR) in a single measurement.

• The SVT Idle Channel Noise VI returns the median noise level, signal-to-noise ratio, and maximum spur detected.
  

System Requirements

• Microsoft Windows 2000/NT/XP

• Minimum of 250 MB of free hard disk space

• Minimum of 256 MB of RAM

• LabVIEW 7.1 or later Full Development System or Professional Development System installed and properly licensed

• NI-DAQ 7.2 or later installed for NI-DAQmx support
  

Installation Instructions

• National Instruments recommends removing any previously installed versions of the Sound and Vibration Toolkit. Refer to the Uninstallation Instructions section below for information about uninstalling previous or current versions of the Sound and Vibration Toolkit.

• Insert the Sound and Vibration Toolkit CD into the CD-ROM drive of the computer. If the CD startup screen does not appear, use Windows Explorer to run the autorun.exe program located in the top-level folder on the CD.

• Follow the setup instructions that appear on the screen.
  

Uninstallation Instructions

• Open the Add or Remove Programs dialog box from the Control Panel.

• Select National Instruments Software and click the Change button.

• Under NI Products, select NI LabVIEW Sound and Vibration Toolkit and click the Remove button.
  

Redistributing Executable Sound and Vibration Applications

Accessing the Help

Finding Examples

Known Issues

• Only one Waterfall Display or Waterfall Display for Octave can be open at any given time.

• Waterfall Display and Waterfall Display for Octave are not supported on RT targets. The Getting Started example also is not supported on RT targets.

• National Instruments strongly recommends that you take precautions to limit the effects of out-of-band aliasing in any frequency domain measurements. Aliasing can cause a wide range of obvious or subtle problems in audio, acoustic, and vibration measurements. Dynamic Signal Acquisition (DSA) devices use transparent digital and analog hardware filtering to eliminate aliased input and output frequencies. Multifunction DAQ (MIO) devices are more susceptible to the effects of aliased frequencies. If you are using a non-DSA measurement device, NI recommends addressing potential aliasing through high sampling rates, built-in analog filters on S Series devices, and/or external analog filters. The Aliasing and Sample Rate example program, available in NI Developer Zone, provides an introduction to issues of aliasing in time-domain and frequency-domain measurements.

• Sending an array of floating-point or integer data to a waveform data type input of a Sound and Vibration Toolkit analysis VI does not produce expected results. LabVIEW automatically coerces an array wired to a waveform data type input, but the sampling interval (dt) is lost in the process. Do not wire numeric arrays to waveform data type inputs. Instead use proper waveform data.

• The improved tone-detection algorithm requires finer frequency resolution for THD and IMD measurements. The lowest frequency of interest must be greater than or equal to 17(df) where df is the frequency spacing of the complex spectrum. If this requirement is not satisfied, the VI returns error –1944.
  
  Error -1944:
  Sound and Vibration Toolset: There is insufficient frequency resolution to perform this measurement. Improve the frequency resolution by increasing the number of samples used to compute the FFT and/or decreasing the sampling frequency of the acquisition.

• Loading some Sound and Vibration Toolkit VIs in a version of LabVIEW greater than 7.1.1 might result in the following warning:
  
  sml_dispose fft table.vi
     -LabVIEW changed a constant that was wired to a Case structure to a hidden control to maintain compatibility with LabVIEW 7.1 and earlier.
  
  You can safely ignore this warning by clicking the OK button. Save the changed VI to prevent future warnings. Saving the VI does not change the functionality of the VI.

• The Read Swept Sine Measurements (DAQmx) VIs return incorrect results when you specify a value other than 0 for the time to settle control in the SVT Set Swept Sine Coupling and IEPE Excitation (DAQmx) VI.

• When mass compiling some of the Sound and Vibration Toolkit examples VIs or some of the Sound and Vibration VIs, you will receive several warnings in the Status window if you do not have the Traditional DAQ driver or the NI-DAQmx driver installed. If you are not using Traditional DAQ or NI-DAQmx, you can safely ignore these warnings. If you are using Traditional DAQ or NI-DAQmx, you need to install the driver before performing a mass compile.

• When you convert an S&V Express Measurements Express VI into a subVI, you must make the subVI reentrant and save the subVI before executing it. Making the subVI reentrant ensures that if you use multiple instances of the same subVI, each instance properly maintains any state information required by the subVI.

• If you have an application that uses the SVT Integration (frequency) VI that shipped with version 2.0 or 3.0 of the Sound and Vibration Toolkit, the application will be broken in this version of the Sound and Vibration Toolkit. The connector pane for the SVT Integration (frequency) VI changed between version 3.0 and version 3.1 of the Sound and Vibration Toolkit. To fix the application, replace the SVT Integration (frequency) VI with the SVL Integration (frequency) VI, located on the Spectrum Extended Measurements palette, and reconnect the input and output terminals.