Click on the picture above for a graphical overview.

IMAT (Interface between MATLAB, Analysis, Test) is a suite of utilities offered by ATA Engineering, Inc. which facilitates data sharing between MATLAB, analysis tools, and test software. The IMAT Toolbox provides a framework for easily importing FEA simulation data and measured test data into the MATLAB environment to access its versatile programming and mathematical strengths. Read more in the IMAT brochure.

IMAT+FEA offers significant additional functionality that extends IMAT's capabilities into Simulation. With IMAT+FEA you can work with a much broader range of data from different analytical solvers and utilize the significant strength and capabilities provided by IMAT. It provides the ability to interface with Nastran, Abaqus, and FEMAP, in addition to I-deas.  The imported data is placed into the IMAT data types, so it is easy to use in Matlab, and all of the existing IMAT functionality is readily available.

IMAT+Modal offers significant additional functionality that extends IMAT's capabilities for the modal test engineer. The Genetic Algorithm (GA) for Accelerometer Placement will optimally select accelerometer locations for a modal vibration test. TAMKIT provides procedures for selecting the instrumented DOF and for reducing the FEM matrices to these DOF. Modal Test Kit, or MTK, contains routines that are useful when performing modal survey tests. These routines include methods for sensor and exciter placement, extracting modes from test data, verifying shape extractions through FRF synthesis comparisons, providing shape independence and completeness checks, and other useful routines. AFPoly™, the patent-pending Alias-Free Polyreference modal parameter estimation utility, is a dramatic improvement over the classic polyreference technique.

IMAT+Signal extends IMAT's functionality into signal processing, which in general encompasses processing time domain data into the frequency domain. In addition to command-line functions for tasks such as computing PSD and CSD from time histories, computing FRF, and time domain filtering, IMAT+Signal also provides two GUIs that greatly simplify the process. SPFRF provides a fully functional GUI for converting time histories to FRF, and RTK provides a GUI that facilitates the analysis and order-tracking of rotational events, using the Vold-Kalman filtering technique.

Read more about IMAT in Desktop Engineering.

Where Can I Get IMAT?
You can download IMAT by clicking on the appropriate link below. The IMAT download is password-protected. If you are a current customer, please email us here to receive the password. If you would like a demo, please fill out the demo request form here and the appropriate information will be provided to you. You will also need the Sentinel RMS license server to run IMAT.

» You can find previous versions of IMAT here.

IMAT Prerequisites
IMAT only requires core Matlab to function.  A few IMAT ideas_fn methods (notably those that perform time-domain filtering) require the Signal Processing toolbox, as does the RTK module of IMAT+Signal.  In addition, a few functions such as the window generator and function decimation are enhanced with additional functionality if the Signal Processing toolbox is available, but will work without it.  More specifics can be found in the IMAT documentation.

License Server for IMAT
IMAT uses Sentinel RMS for licensing, so you will need to download the Sentinel RMS license server.  Visit the Sentinel RMS download page for more details.

If you are an existing IMAT customer and are current on software maintenance, please contact ATA to request an updated permanent license

How Can I Obtain an IMAT License?
To obtain a demo license for IMAT, request your 30 day trial license! To obtain your permanent license file, follow these steps:

1. Download and install Sentinel RMS, following the installation directions. 
2. Email us to receive password for IMAT download.
3. Download and install IMAT.
4. Follow the directions for installing the license file.

If you have any questions about the process, please .

More IMAT Information

• IMAT Documentation
• IMAT Frequently Asked Questions
• IMAT Revision History showing what has changed for each version of IMAT.

Last updated: March 2010