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Analysis Softwares

  • Multi-channel real-time
    data acquisition program
  • Real-time frequency
    analysis program
  • Post-processing system for
    Acquired data calculation
    & analysis
  • Sound & Vibration
    Factor Analysis
  • Dynamic Character analysis
    system for Rotor
  • Real-time frequency analysis program
    RS-300
  • Real-time FFT analysis
  • Real-time Octave filter (1/1, 1/3 Octave) analysis
  • Computation of frequency response function (FRF, COH, etc.)
  • The order ratio analysis of a rotation body (Order tracking)
  • Digital Filter analysis function
  • Real-time & 3-D analysis such as Waterfall, and Color-contour
  • Sound pressure level measuring function (A-, B-, C-weighting)
  • Data and Image transfer function to Microsoft Word and Excel

Products Information

RS-300 Series are real-time analysis program for inputting the various signals into a PC through a data acquisition device, and users can select modules of the RS-300 for composing users' optimum system at moderate prices(see selection guide).
This program is a noise & vibration analysis program that supports octave filtering analysis, impact test, order tracking, digital filtering and other various functions based on spectrum analysis such as real-time FFT, Cross spectrum, PSD. Each function modules meets ISO, JIS and ANSI standard requirements, and wecan offer customized S/W for users' convenience. Including PPD IV, user also can applythis program to all the library provided hardware. Also, report making preparation (comparable with MS Word, Excel), measuring condition setup file is added.

Feature and composition

Measurement condition setup
Channel setupSampling frequency 400 to 51200Hz single step (up to H/W Spec)
Block size 160 to 51200
Overlap0, 25, 50, 75%
OverloadRecording Effective data within the overload range of user
Type of sensor Selecting types of input sensors
Sensitivity(mV/Unit)Sensitivity of sensors or user-defined unit & scale factor
Input range 0.2, 0.5, 1, 2, 5, 10, 20V (depends on H/W)
Window functionHanning, Hamming, Flat-top, Blackman, Triangle, Kaiser Bessel, Rectangular
TTL PulseSelect it when using TTL Pulse input.
Calibration Noise/vibration gauge, Zero offset calibration function
Auto-calibration for all channels
Measurement setupRecording method Choosing between time, times of averaging, and unlimited recording
Average method Linear, Exponential, Peak holder
The Number of average timesUser-defined
File save Able to save time series and all analysis data
Trigger Pre-/Post-trigger, Level, Time interval trigger
Test environmentRecording of test environment such as tester, test place, temperature, humidity, etc.

Setup window will be changed by the hardware selected or added by user.
The above setup window is based on PPD of RECTUSON.

Frequency Analysis Module

RS-300 standard modules have various results displayed and saved by real-time FFT analysis


· Time series data
· Auto spectrum
· Power spectrum
· Power spectrum density
· Cross spectrum


· Frequency response function
· Coherence
· Cepstrum
· Correlation
· S/N ratio


Frequency weighting filter : A-, B-, C-weighting
Coordinate : Real, Imaginary, Magnitude, Phase
Graph type : Lin, Waterfall, Color contour
Export of saved files support

Octave Filter Module

ANSI Standard S1.11
· 1/1 Octave filter(6-pole filter, 16Hz~16kHz)
· 1/3 Octave filter(6-pole filter, 12.5Hz~20kHz)
· 1/n Octave filter(option)
· Displays and saves octave values for overall and each band.
· Weighting filter : A-, B-, C-weighting
· Average method : Linear, Exponential
· Number of average : User define

You can reduce the load of your PC, if you apply these algorisms to the DSP chips inside PPD.

Impact Test Module

Impact test module makes it easy to analyze through the excitation of impact hammer and the analysis result values are as follows. You can export the result file of a test to Modal analysis program to analyze it

· FRF, Cross spectrum : Real, Imaginary, Magnitude, Phase
· Coherence : Coherence, Coherence power
· Scope, Auto spectrum, Impulse power, Cross correlation,
  Nyquist plot, S/N ratio
· Window : Force, Exponential Window
· Method : Fixed Hammer, Roving Hammer