VibSoft Software - Features

VibSoft is a comprehensive software and hardware package for acquiring and processing data from Polytec’s line of single-point laser vibrometers. It manages the data acquisition, signal decoding, function generator, data display and remote control of vibrometer controller settings. Measurements can be presented in both time and frequency domains with applying digital filters, signal averaging as well as real-time integration and differentiation.

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More Functionality and Flexibility: Polytec has just released an improved and expanded capability version of its comprehensive software and hardware package for acquiring and processing data from Polytec’s line of single-point laser vibrometers. Among many other items, the new VibSoft release 4.5 features Windows Vista support and extended performance of the Zoom FFT function for high frequency measurements.

Polytec’s family of single-point laser vibrometers are indespensable tools for engineers looking to optimize product performance and to investigate natural dynamic responses.  The VibSoft Data Aquisition packages are specially designed to guarantee a seamless control of the vibrometer settings along with accurate and meaningful data analysis. Easy integration unambigious interfacing and the guarantee to receice a fully tested set of equipment is one of the benefits to rely on the same supplier.

Within VibSoft, the user can access a spectrum of high quality measurement features including a wide range of functions that are standard for FFT analyzers. Also, there are special features designed just for Polytec vibrometers such as vibrometer controller operation and function generator control. VibSoft is designed as an open platform for data acquistion and analysis. Additional software options, such as a powerful post processing tool "Signal Processor", up to 819,200 FFT lines, Visual Basic compatible scripting, MATLab interface, and variouse export filters make VibSoft a flexible tool that fits in all R&D and industustrial environments.

Several versions reaching from 20 kHz to 40 MHz are available to meet your requirement. Polytec provides turn-key solutions for PC-based VibSoft versions, as well as the new USB-based VibSoft-20 featuring 20 kHz acquistion bandwidth and 2-channels. VibSoft-20 was specially designed as a portable solution together with the Portable Digital Vibrometer PDV-100

What You See Is What You Get!

All PC-based VibSoft versions can display and integrate video images from OFV-534 sensor heads and other video enabled measurement system from Polytec 

To learn more about laser-Doppler vibrometry, please visit the Vibrometer University.

Data Acquisition

• Bandwidth 20 kHz to 40 MHz
• 2 or 4 acquistions channels (IEPE (ICP(TM) supported in some versions)
• internal and external (TTL) trigger
• Up to 64 MSamples time domain measurements 

• Provides access to all vibrometer settings via RS-232 interface*

• Sets integrated function generator (optional) to standard and user-defined excitation waveforms

• Provides live video images of the test object and laser beam position when using an OFV-534 Sensor Head equipped with an internal video camera, or an MSV-050/100 Microscope Adapter

• Acquires time and FFT response signatures of arbitrary drive voltages

• Averages the input signal in the time domain

• Differentiates and integrates in time and frequency domain

• Calculates FFT with 12,800 lines of resolution; optional Zoom FFT and extension to 819,200 lines 

• Enables sensitivity calibration for 3rd party sensors

Data Processing

• Displays 3rd octave, magnitude, real & imaginary, and Nyquist diagrams

• Provides complex spectral analysis with auto power, cross power, H1, H2, FRF, phase and coherence functions, and other signal properties

• Applies digital high, low and band pass filters

• Enables automatic test routines and interface with other software using Visual Basic scripting (VBS)

• Exports data in ASCII format and Universal file UFF, provides direct access to binary data for processing in MATLAB

Statistical Parameters

VibSoft’s extensive peak analysis capability is enhanced by a band cursor providing statistical parameters and harmonic oscillator curve fitting as well as a harmonic cursor that plots up to 12 cursor lines at the 2nd, 3rd, … order of the base frequency. VibSoft can export files as a universal file (UFF), ASCII data and as PolyFileAccess, a software component according to the Microsoft COM standard for 3rd party software data access (e.g. MATLAB) ME’scope binary export is available as an option.

Polytec Signal Processor Option

The performance of VibSoft can be greatly enhanced by adding appropriate hardware and software options. Various external or internal function generators support a wide range of
arbitrary waveforms for sample excitation. The Polytec Signal Processor is a powerful user interface to the math library included in VibSoft. Designed as an easy-to-use spreadsheet, measurement data from different sources can be post processed by simple drag and drop operations. Data can easily be shown in one plot, subtracted from a trace in another plot, and integrated in a third plot.

*) depending on Vibrometer model

VibSoft Based on Analog-to-Digital Conversion (PC-based)

The analog-to-digital converter (ADC) board included in these packages is intended for digitizing both the analog velocity and displacement signals from the vibrometer controller output, as well as reference signals of various origins. The PC-based versions are available as turn-key solutions based on industial 19" PC or tower PC tuned to optimal performance for the measurement task including Video-In for camera equipped Vibrometer models. VibSoft operates in conjunction with any single-point laser vibrometer ranging from industrial vibration sensors to high-end OFV-5000 based systems. VibSoft is available as a standard two-channel version with maximum signal bandwidths of either 80 kHz, 1 MHz or 40 MHz. Four channel versions are available for 80 kHz and 1 MHz. The same ADC board is incorporated in the PSV-400 Scanning Vibrometers. VibSoft can therefore be the base for a subsequent upgrade to a PSV system.

VibSoft Based on Analog-to-Digital Conversion (USB-based)

The potable solution for notebook and desktop computes. VibSoft-20 is a full featured 2-channel acquistion system featuring 20 kHz max. bandwidth. It can be operated in conjunction with any single-point laser vibrometer ranging from industrial vibration sensors to high-end OFV-5000 based systems.

VibSoft-VDD for PC-Based Digital Vibrometers (PC-based)

VibSoft-VDD is a software package for PC-based vibrometer systems. In the VDD system, a quadrature demodulator generates the sine and cosine components of the sensor head signal. These are digitized by a high sampling rate ADC board inside the data management system to measure the dynamic displacement of the test object. The VDD PC-Based  Digital Vibrometer is an excellent tool to characterize very small dynamic displacements with 2 MHz bandwidth, flat response and fine resolution. The version is available as a turn-key solutions based on industial 19" PC or tower PC tuned to optimal performance for the measurement task including Video-In for camera equipped Vibrometer models. 

Please refer to "Technical Data" for details

The VibSoft package manages the data acquisition, signal decoding, function generator and data display. It includes a data acquisition board to be installed in the computer, and a Junction Box to connect the vibrometer to the board. The Junction Box provides inputs and outputs for the vibrometer signal, function generator, reference, trigger and others. When using vibrometer hardware equipped with a video camera, choose the VIB-S-Video option to display and save the video image along with the measurement data.

All VibSoft packages include a Visual Basic® compatible scripting engine to implement automated process sequences, for example:

• Carrying out a sequence of measurements
• Exporting data in specific target formats
• Customer specific applications, e.g. monitoring external instruments by programming the digital I/O port, creating customer-specific dialog boxes