VTI Instruments X-Modal III Modal Analysis Software with Embedded Data Acquisition

VTI Instruments X-Modal III Modal Analysis Software with Embedded Data Acquisition

Product Overview:

  • Autonomous Modal Parameter Estimation Procedure
  • Multiple Live Parameter Estimation Windows
  • Task Oriented, Easy-To-Use Interface
  • Logical Operation Always "One-Click" away
  • Simplified "Copy & Paste" Data Management
  • Simplified Units Unification Tool
  • Based on MATLAB® Computational Engine Environment
  • Universal File Format (UFF) Data Access
  • Individual Data Channel Calibration



X-Modal III is a comprehensive modal analysis package featuring intuitive, task oriented user interfaces, extensive modal parameter estimation algorithms, parallel display capabilities, flexible data management, and embedded data acquisition capabilities.

Developed by one of the leading research universities in modal analysis and structural dynamics, and supported by leading structural testing groups in aerospace, defense and automotive industries,X-Modal III is used for the most complicated modal test applications in the world.
X-Modal III is based on MATLAB®, an open-source programming environment, and offers the user the ability to take advantage of leading edge technology for modal testing. X-Modal III fully supports the SentinelEX Series of Smart Dynamic Signal Analyzers (DSA’s), as well as VTI’s VT143x family.

  • Modal Analysis
  • Ground Vibration Testing
  • MIMO Shaker Testing
  • Multi-Reference Impact Testing
  • Problem Analysis and Troubleshooting


Open-source Programming Environment

X-Modal III is based on MATLAB®, an open-source programming environment. X-Modal is also not captive to data formats like traditional modal analysis tools. Data can be exported in multiple common file formats to like Universal file format, Excel, Matlab™, Quicktime movie, or JPG. This ensures that the user is not bound to using proprietary software with expensive maintenance fees in order to access stored data.

Extensive Capabilities

X-Modal III offers a wide range of capabilities providing virtually every toolset required for performing complex structural tests.


Data Acquisition Modes Data Signal Processing
  • MIMO FRF Estimation
  • Multiple Reference Impact Testing (MRIT)
  • General Auto/Cross Power Spectra Matrix
  • Block Time Domain
  • Sensor calibration modules
  • General Windowing Support
  • RMS and cyclic averaging
  • H1, H2, Hv FRF Algorithms
  • Pre and post trigger
  • Units support
  • Multiple source control for MIMO


X-Modal supports all commercial MIMO (Multiple Input Multiple Output) MDOF (Multiple Degrees of Freedom) algorithms plus many research options. Autonomous modal parameter estimation procedures are available with all MDOF methods, with statistical mean and standard deviation information available for all modal parameters.