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Experimental Modal Analysis Software
Operational Modal Analysis
Impulse Hammer Test
Modal Analysis Test
NVH Analyzer Software

Modal Analysis Test System
2 Channel FFT Analyzer for Vibration,
Modal- and FRF Analysis

The NVH Analyzer software was developed by engineers who themselves have been performing contract measurements at home and abroad for two decades.

The software offers the mechanical engineer, only the necessary functions, in order to master purposefully and cost as well as time-efficiently the tasks.

Driver support for: 2 channel sound cards, Plug.n.DAQ Lite, RogaDAQ2, DT9837 and Sinus Messtechnik Apollo Lite series.

ROGA Instruments covers the most common NVH analysis requirements within one software package, and can be operated online and offline.

Impulse Hammer Test

Modal Analysis System
Impact Hammer Test Equipment
  • NVH Analysis Software
  • Plug.n.DAQ Lite
  • Impulse Hammer IH-02
  • IEPE Accelerometer

Price : RFQ

  • Vibration Analysis Software
  • Signal Analysis
  • Order Analysis
  • Experimental Modal Analysis Software
  • Operational Vibration Shape Analysis
  • Machine diagnostics Machine monitoring
  • Balancing of inelastic rotors
  • Sound level / sound power

Flow chart of the software

1. Task measurement
2. Setup-data acquisition
3. Parameters analysis
4. Graphic settings
5. START-Measurement
6. Save measurement

After selecting a measuring task, the modules are automatically called up one after the other. 

The settings must be saved in each module so that these settings are called up the next time the programme is started.

 

 

The supported modules are only visible, if they are activated for the customer.

 

  • When they are purchased by the customer.

 

 

 

A measurement task is selected here.

FRF – Transfer functions
Signal
Triggered Signalblock with
1024, 2048, 4096, 8192, 16384,32768,65536 Samples
FFT-Spectrum
FFT-Spectrum of Signal-Block
FFT T-AVG
Averaged FFT-Spectrum
FRF-Ref Mag + Phase
Transfer function Magnitude + Phase for 1 to 4 References
Coherence
Coherence Function
INV FRF-Ref Mag
Inverse Transfer function Magnitude for 1 to 4 References
FRF-Ref Real-part / Imag-part
Transfer function Real-Part and Imaginary-Part for 1 to 4 References
FRF-Ref Nyquist
Transfer function Nyquist for 1 to 4 References
Magnitude A / Magnitude B
Spectrum Channel A / Spectrum Channel B

Spectral investigations can be carried out in this module. 

This module is suitable for the measurement of transfer functions which can then be evaluated in a modal analysis system.
The transfer functions [m/s²/N] as compliance function and the inverse FRF function [N /m] as stiffness can be displayed simultaneously.

The following tasks can be analyzed in this module:

  • FFT-Analysis
  • Order analysis
  • Acoustic Analysis
  • Level measurements of structure-borne sound
  • Level measurements of air-borne sound
Functions
Signal
Triggered Signalblock with
1024, 2048, 4096, 8192, 16384,32768,65536 Samples
FFT-Spectrum
FFT-Spectrum of Signal-Block
Speed
Speed vs time collected by the counter
Order-Spectrum
Order-Spectrum
Order-Amplitude vs. Speed + Time
Phase of a selected Order vs. Speed + Order vs. Time
Order-Phase vs. Speed + Time
Phase of a selected Order vs. Speed + vs. Time
Order-Polar
Polar Graph Magnitude/Phase of selected Orders
Signal-Ringbuffer
Collected Signal of the Ringbuffer
Angular Resampling Signal
Resampling Signal vs Rotating angle
1X Amplitude vs. Speed
1. Order Amplitude vs. Speed
1X Amplitude vs. Time
1. Order Amplitude vs. Time
1X Phase vs. Speed
1. Order Phase vs. Speed
1X Phase vs. Time
1. Order Phase vs. Time
Time domain Level acc.
Level m/s² vs. Time 125 ms 30 ms 1 s weighted
Time domain Level vel.
Level mm/s vs. Time 125 ms 30 ms 1 s weighted Time domain
Time domain Level disp.
Level μm vs. Time 125 ms 30 ms 1 s weighted
Time domain Speed
Speed vs. Time
Time domain 1X-Ampl. acc.
1. Order m/s² Acceleration Level vs. Time
Time domain 1X-Phase acc..
1. Order m/s² Phase vs. Time
Time domain 1X-Ampl. vel.
1. Order mm/s Velocity Level vs. Time
Time domain 1X-Phase vel.
1. Order mm/s Phase vs. Time
Time domain 1X-Ampl. disp.
1. Order μm Displacement Level vs. Time
Time domain 1X-Phase disp.
1. Order μm Phase vs. Time
Time domain RMS
Root mean square vs. Time
Time domain Mean-value
Mean-value vs. Time
Time domain Peak-Peak
Peak-Peak vs. Time
FFT-Avg.
FFT-Spectrum averaged
Time domain Sound Level
Sound Level Linear vs. Time dB
Time domain Sound Level A-Filter
Sound Level A-Weighted vs. Time dB A
Time domain Sound Level C-Filter
Sound Level C-Weighted vs. Time dB C
Time domain Sound Power dB
Sound-Power vs. Time dB
Time domain Sound Power dB A
Sound-Power vs. Time dB A
Time domain Sound Power dBC
Sound-Power vs. Time dB C
Sound Power FFT
FFT-Spectrum as Sound Power
Sound Power dB vs. Speed
Sound Power dB vs. Speed
Sound Power dBA vs. Speed
Sound Power dBA vs. Speed
Sound pressure dB vs. Speed
Sound Pressure dB vs. Speed
Sound pressure dBA vs. Speed
Sound Pressure dB A vs. Speed
Sound Power dB vs. time
Sound Power dB vs. time
Sound Power dBA vs. time
Sound Power dBA vs. time
Sound pressure dB vs. time
Sound pressure dB vs. time
Sound pressure dBA vs. time
Sound pressure dBA vs. time
1/3 Octave-Spectrum
1/3 Octave-Spectrum Lin / A / C Filter
1/3 Octave-Sound Power
1/3 Octave-Spectrum Sound-Power Lin / A / C Filter
AVG. Sound pressure dB vs. Speed
Sound Level (Average of all Microphones) dB vs. Speed
AVG. Sound pressure dBA vs. Speed
Sound Level (Average of all Microphones) dB A vs. Speed

The following tasks can be analysed in this module:

  • FFT-analysis
  • Order analysis
  • Unbalance calculation
Functions
Signal
Triggered Signalblock with
1024, 2048, 4096, 8192, 16384,32768,65536 Samples
FFT-Spectrum
FFT-Spectrum of Signal-Block
Speed
Speed vs time collected by the counter
Order-Spectrum
Order-Spectrum
Order-Amplitude vs. Speed + Time
Phase of a selected Order vs. Speed + Order vs. Time
Order-Phase vs. Speed + Time
Phase of a selected Order vs. Speed + vs. Time
Order-Polar
Polar Graph Magnitude/Phase of selected Orders
Signal-Ringbuffer
Collected Signal of the Ringbuffer
Angular Resampling Signal
Resampling Signal vs Rotating angle
1X Amplitude vs. RPM
1. Order Amplitude vs. RPM
1X Amplitude vs. Time
1. Order Amplitude vs. Time
1X Phase vs. RPM
1. Order Phase vs. RPM
1X Phase vs. Time
1. Order Phase vs. Time

Modul FFT / Order analysis / Acoustic

After selecting the measurement task, the Data Acquisition window is displayed.

The settings for each measuring channel must be made here. For the speed, 3 signal types can be selected Pulse or periodic signal, Analogue (mV/RPM) or Frequency (mV/Hz). The Execute command accepts the settings and parameterises the hardware. The settings can be managed with Save and Load..

Filter

Filters can be switched on here during data collection. The raw data are therefore filtered.

FFT Analysis Setup

Animation of structural models with NVH Analyzer modal analysis software

Impulse hammer Measurement and comparison of transfer functions

1/3 octave analysis including IEPE microphone calibration

Adjustment of the measuring card with sensor calibration part 1

Setting the graphic with Analysis functions part 2

Additional software settings with Analysis functions part 3
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