Multi-channel comparator for NV inspection on the production line
MI series

This software has a comparator function for abnormality diagnosis based on sound/vibration analysis.
You can perform simultaneously the tracking analysis and pass/fail judgment for 2 revolution input channels.
It is ideal for vibration analysis of CVT and in-line 100% inspection such as carrier noise analysis of motors.





  • Pass/fail judgment of data analyzed by setting threshold value
  • The pass/fail judgment function is equipped as standard, and it can be used as a multi-channel comparator.

  • Simultaneous analysis for measured signals
  • To reduce cycle time, the simultaneous measurement and parallel analysis on multiple channels are required during inspecting work-in-process on a production line.

  • Automatic measurement using communication
  • The operation patterns (acceleration/deceleration/constant speed) can be continuously registered as one step and automatic measurement is available in combination with the optional communication function.

Major windows

Pattern setting

Up to 20 steps of measurement patterns can be selected by combinations of three items (acceleration/deceleration/constant speed).

Upper/lower-limit rotation speeds and data import interval can be set to each step of each input (Rev1, Rev 2 and calculation revolution).

Noise judgment

Judgment, displaying on the screen, and signal output

1. Sections of judge line:up to 32
2. Judge line setting:up to 32
3. Multi judge function



Function (Option)

ORF input & Recalculation function (GN-0100)/ Secondary processing function (GN-0110) Upgraded

Able to read and recalculate the ORF (ONO SOKKI original format of time-series data) format data. In addition to the recalculation function, following functions are available.
It is effective to improve the measurement by checking resonance and abnormal movement of the work piece. When the offline tracking mode is connected to the DS-3200 series hardware, reanalysis is possible by changing the analysis condition immediately after measurement using the most recently recorded data. Also, reanalysis of the ORF file imported to the following read-only screen is possible in the selected analysis condition.

* GN-0100 is only available for reading and recalculation of ORF file.



Rotating fluctuation analysis display


Added judgment function by P.O.A and crest factor
Useful for abnormality diagnosis of bearing or gear dents. Characteristic natural frequency peaks seen when they are damaged can be checked


Judgment by Partial Overall

The peak becomes large when a bearing or a gear has damage. The damage can be checked by narrowing to specific frequency bands and making judgments using power addition.



Judgment by Crest factor

Focusing on that the measurement waveform has the characteristic frequency component when damaged, the breakage can be checked by making judgment with peak value/real mean square.


GN link function (GN-0120)

The measurement data and pass-fail judgment of workpiece of the sound/vibration devices can be outputted when the GN-1100 is connected to the device which performs the test of workpiece in the transmission or engine production line. The communication formats are LAN, RS-232C*, DIO*, etc.

* Special order products.




File viewer function(GN-0130) UPGRADE

This function is for data management of the large number of files which has been measured and made judgment by the GN-1100. It can be used for searching the workflow information of measured data, and enables to narrow down the multiple workflow data measured in similar condition to perform overlay comparison or averaging.



he display layout can be customized freely in viewer function. You can make a format as you like.


Dual Rev. tracking function (GN-0140)/ Calculation Rev. tracking function (GN-0150)

This function is for the simultaneous tracking measurement which is standardized the Rev 1/ Rev 2/ calculation revolution in each step.
Calculation revolution can be set by combination of four arithmetic operation buttons, based on Rev1 and Rev2.
To use this function, it is possible to perform tracking analysis which is based on the rotating input and output axes with no correlation or rotating axis which cannot be perform rotating measurement for more detailed workflow checking.


Dent Analysis function (GN-0160)/ Envelope analysis function (GN-0230)NEW

With the GN-0230, envelope processing is applied to the time-axis waveforms of the measured vibration and sound pressure, and the magnitude at peak, the phase (period), the ratio for each period of the waveform are monitored. It is suitable for detecting abnormalities that occur in a specific period.
The GN-0160 is effective for checking the presence of dents on gears and scratches on bearings. It can be used for the measurement during not only constant rotation speed but also acceleration/deceleration.

1. Dent measurement:Up to 32 pairs
2. Number of rotation axis:Up to 6 axes
3. Reference rotation:Rev1/Rev2
4. Rotation ratio:Rotation speed ratio/gear ratio
* When using the envelope analysis function, the peak value is used for each rotation.

Real-time Octave Analysis (GN-0170)

The GN-0170 can make pass/fail judgment of work and equipment by 1/3 octave analysis. This function makes it possible to quantitatively perform "judgment close to the auditory sensation of human" having a characteristic proportional to the frequency component, and supports to build up the human-independent test system.
Also, it can recalculate the optimum threshold using data group judged to be normal in the past, and automatically generate judgment lines.
This function contributes to reduce man-hours in standard management at the time of judgment.


Setting example of judgment line




Statistically processes normality judgment data and automatically generates judgment lines. The value outside the normality range is judged to be abnormal.
* Manual setting is also possible (file import etc.).

Application example

Abnormality inspection of transmission and speed reducer
Abnormality inspection of a motor
Abnormality inspection of an engine
Analysis of low frequency sound
Measurement of equipment noise/ vibration
Measurement of sound pressure characteristics of various acoustic products


Auto sequence function (GN-0180)

You can specify the series of operational commands from setting change to result output, and call them later to perform the same operation repeatedly.
Describing commands promotes efficiency of recalculations, and reduces operation errors.

Offset tracking function (GN-0190)

This function allows tracking analysis of the noise caused by the carrier frequency, which is used to change the frequency driving a gear from an inverter in hybrid automobiles, and the order originated from the carrier frequency.


Grade line function (GN-0200)

In grade line function, grade line is created as the base for comparing and assessing a work by the measured peak values of sound/ vibration in different measurement facilities.

To manage the multiple measurement data in the specification information setting, any specification information can be attached to the measurement data.

This function can be used for mass production workflow grade guideline or data management in the quality control division. It will be able to use for visualizing of the dispersion or quality difference of workflow.





Stress tracking analysis function (GN-0210) UPGRADE

This function analyzes in real time the repeated stress and load behaviors applied when the works are in operation by using detected signal of a strain gauge. Helpful to check the strength and safety.







Application example

Production line quality inspection of unit, such as motor, transmission, and speed reducer.

Abnormality inspection of prototype vehicles and parts incorporated in test equipment.

Strength evaluation of new materials.

And other various scenes




Torsion vibration operation function (GN-0220) NEW

This function calculates the difference in rotation speed between the rotation speed signal from the reference axis and the compared axis, and outputs the torsional amount of the rotating shaft.
If a high load or high torque is applied to a part or unit in the direction of rotation, it may cause abnormalities such as shaft damage or abnormal noise. By using this function, it is possible to evaluate the torsional amount and obtain data for verifying the durability of parts and the presence or absence of abnormalities.




Calculating the torsional amount from the differences in rotation speed.
The analysis result can be output as a binary text file and used for various post-processing analysis.



Analyzing torsional resonance by O-Solution




Application examples

Inspection of motor shaft torsion and rotation fluctuations

Torsion inspection of clutches and dampers

Rotation transmission measurement of drive unit, etc.


Example of system configuration


Analysis section
Number of 32 ch
Frequency analysis range 40 kHz (2 to 8 ch)
20 kHz (10 to 16 ch)
10 kHz(18 to 32 ch)
Number of analysis tracks 16 tracks+OA
Frequency analysis FFT 6400 lines/bundled of octave
Max. analysis order 1600th order
Rev. reference Revolution1 / Revolution2 /calculation revolution of Rev.1 and Rev.2
Average Exponential average/moving average
Composite calculation Sound : max.1ch, Vibration : max.10ch


Operating environment
Front end DS-3200series
OS Microsoft Windows® 7 Ultimate/Professional SP1 (64-bit)
Microsoft Windows® 7 for Embedded Systems (64-bit)
Microsoft Windows® 10 Pro, (64-bit)
Microsoft Windows® 10 IoT enterprise 2019 LTSC
Please refer to the software operating environment [Windows] for the details of the version.
Microsoft .NET Framework 4.6 or later
CPU Equivalent to or faster than Intel Core TMi7 3 GHz
Memory 8GB or more
Display 800 X 600 or more
Interface USB 3.0 x 2 port or more or USB 3.0 x 1 port + USB 2.0 x 1 port or more
Optical drive CD/DVD drive (required in installation)



Model name Product name Overview
GN-1100 Noise Testing Software Basic software, tracking and judgment of Rev 1 input, tracking analysis extension.
GN-0100 ORF Input & Recalculation Function Reading ORF file, recalculation
GN-0110 Secondary Data Processing Function Reading ORF file, recalculation, Campbell diagram, overlay function, rotation fluctuation (GN-0100 included)
GN-0120 GN Link Function External communication function* of LAN (TCP/IP)
GN-0130 File Viewer Function Search for data file, overlay, peak list display
GN-0140 Dual Rev Tracking Function Simultaneous processing of tracking analysis and pass-fail judgment of 2 rotation inputs.
GN-0150 Calculation Rev Tracking Function Simultaneous processing of tracking analysis and pass-fail judgment of three rotation inputs.
GN-0160 Dent Analysis Function Dent judgment during tracking measurement of acceleration/deceleration
GN-0170 Real-time Octave Analysis Function
Pass/fail judgment by 1/3 octave analysis
GN-0180 Auto Sequence Function Measurement function by command files (GN-0100 included)
GN-0190 Offset Tracking Function Tracking analysis of the high frequency noise caused by inverter carrier signal.
GN-0200 Grade Line Function Creating grade lines, setting of specification information, search function, output of peak data
GN-0210 Stress Tracking Analysis Function Tracking of signal which requires DC calibration including a stress signal.
GN-0220 Torsion vibration operation function NEW Calculating the torsional amount from the differences between two rotation speed signals (including GN-0140)
GN-0230 Envelop Analysis Function NEW Abnormality detection judgment using envelope processing

* Windows®7 、Windows®10 are registered trademarks of Microsoft Corporation in the United States and other countries.
* Intel, Intel logo, Intel Core, Core Inside are trademarks of Intel Corporation in the United States and other countries.