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.

 

New Function

Enhanced performance of base software

The number of measurement channels and sampling points has been expanded, and the setting GUI has been improved.
Performance has been significantly improved.
It allows to build a system that can more efficiently detect abnormalities at multiple points simultaneously.

Performance improvement

Various performance improvements on software have been made.
Measurements and analyses that previously had to be performed in multiple times can now be done all at once, right up to judgment.

  Existing version Version 4.0
Max. number of channels Input 32 ch/Revolution 2 ch Input 42 ch/Revolution 2 ch
Input 48 ch/No revolution ch
Upper limit sampling frequency up tp 8 ch : 102.4 kHz up to 20 ch : 102.4 kHz
up to 16 ch : 51.2 kHz up to 40 ch : 64.0 kHz
up to 32 ch : 25.6 kHz up to 48 ch : 51.2 kHz
Max. number of blocks up to 8 ch : 2500 up to 48 ch : 5000
up to 32 ch : 500

CSV file import/export function for judgment line settings

Added supporting function for the pass/fail judgment settings. This greatly reduces the time required for setting large numbers of conditions.

Other function added

  • Channel addtion, inter-channel power averaging function
  • Moving average processing type 2, etc.

Function enhancements useful for analysis

Convenient functions have been added to various optional functions, making the software even easier to use.

File viewer that makes it easy to compare differences(GN-0130)

The color map display which is frequently used for checking the entrie data has been added on GN-0130 File Viewer Function.
By checking all data other than the remarkable components, or by displaying two graphs side by side, it becomes easier to compare differences in test conditions or test specimens.

Calculation Revolution Speed Tracking Function (GN-0150)

The calculated revolution function, which previously only allowed arithmetic operations on one channel, now supports up to three channels. This is suitable for cases where the rotation speed of internal parts cannot be measured directly.

Automated post-processing analysis after measurement by Auto Sequence Function (GN-0180)

Added functions and commands that allow you to perform automatic post-processing analysis when data files are placed in a specified location.
Even if analysis of multiple conditions is required that cannot be processed with a single license, post-analysis/anomaly judgment can be performed efficiently and consecutively.

Features

  • 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

Color Map Judge function

By setting the judgment plane in any band on the color map, make pass/fail judgment of the analysis data. It is effective in detecting high-order noise components caused by waviness and fine processing scratches on the gear tooth surface, abnormalities in motors/inverters, etc.

Enhanced octave analysis (1/3 Bundled Octave Judge function)

The judgment function using 1/3 bundled octave analysis that allows you to make pass/fail judgment with a sensation similar to human hearing is added. In particular, judgments using data differences between adjacent bands are effective in extracting harsh or muddy noises.

Bivariation Graph Display

By selecting any two data from the data input to the measurement channel/rotation speed channel of the data station, you can display them on a two-axis graph and also perform correlation evaluation. Parameters such as torque, rotational speed, displacement, and vibration acceleration can be used as indexes for run out inspections of motors, etc. during rotating at high speed.

 

 

Function (Option)

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

Able to load 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-5000/DS-3200 series hardware, re-analysis 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 load-only screen is possible in the selected analysis condition.

* GN-1200 enables only loading and recalculating the ORF file.

 

Importing data

Multiple simultaneous display

Overlay

Campbell diagram

Rotation variation analysis

Bivariation analysis

 

Useful for abnormality diagnosis of bearing or gear dents. Characteristic natural frequency peaks seen when they are damaged can be checked

 

Judgment by Spectrum P.O.A.

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)

By connecting the GN-1200 to equipment that performs performance tests on work pieces in the production line, it can output the sound/vibration measurement data of work pieces or equipment, as well as work piece pass/fail judgment results, to the equipment. There are three types of communication formats: LAN format (GN-0120)/LAN+DIO format (GN-0240)/RS-232C+DIO format (GN-0240).

* Special order products.

 

 

 

File viewer function(GN-0130)

This function is for data management of the large number of files which has been measured and made judgment by the GN-1200. 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.

 

 

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.

* Calculation revolution is only available for GN-0150.

 

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

GN-0160 Dent Analysis function
The 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 and effective for checking the presence of dents on gears and scratches on bearings. Further, it can be used for the measurement during not only constant rotation speed but also acceleration/deceleration.

GN-0230 Envelope analysis function
This is a function that uses the same method as GN-0160 to judge periodic whining sounds which are caused by shaft vibration or uneven rotation based on the peak value.

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.

* It will be compatible with the DS-5000 soon.

 

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)

The Grade Line function is for creating grade lines as the base for comparing and assessing the measured peak value in different measurement facilities. Additionally, in order to manage a large amount of measurement data, arbitrary information such as operator/equipment name/measurement details can be added as specifications. This function can be used by factory quality control departments to manage work piece variations and visualize quality change points.

 

 

 

 

Stress tracking analysis function (GN-0210)

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.

GN-0210

 

 

GN-0210

 

 

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

 

モータ

 

Torsion vibration operation function (GN-0220)

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.

 

 

GN-0220

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

 

Specifications

Analysis section
Number of max.ch Input 42 ch/Revolution 2 ch
Input 48 ch/No revolution ch
Upper limit sampling frequency up to 20 ch : 102.4 kHz
up to 40 ch : 64.0 kHz
up to 48 ch : 51.2 kHz
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-5000 series / DS-3200 series
OS Microsoft Windows® 10 Pro (64bit), Microsoft Windows® 11 Pro (64bit)
Microsoft Windows® 10 IoT enterprise 2019 LTSC,
Microsoft Windows® 10 IoT enterprise 2021 LTSC
Please refer to the software operating environment [Windows] for the details of the version.
Microsoft .NET Framework 4.8 or later
CPU Intel Core TM i7 8th generation or later, Base clock frequency 3.0 GHz or higher recommended
Memory 16 GB or more
Display 800 X 600 or more
Interface LAN x 1 port or more (for DS-5000 connection), USB Type-A x 1 port or more (for USB key)
*When using the GN link function, the following ports are required.
TCP/IP: LAN port, RS-232C: Serial port, Digital I/O: PCI port
Optical drive CD/DVD drive

 

Software & Option

Model name Product name Overview
GN-1200 Noise Testing Software Main application, tracking analysis and judgment for the Revolution Input Ch1, 1/3 bundled octave analysis and judgment, list display
GN-0100 ORF Input & Recalculation Function Reading ORF file, recalculation
GN-0110 Secondary Data Processing Function Reading ORF file, recalculation, time axis statistics
GN-0120 GN Link Function (LAN) External communication function using LAN (TCP/IP)
GN-0240 GN Link System (LAN+DIO or RS+DIO) External communication function using LAN(TCP/IP)+DIO or RS-232C+DIO
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. (including GN-0140)
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 Auto analysis function using command files (including GN-0100)
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 analysis of strain gauge signals and inter-channel calculation signals set by arbitrary four arithmetic calculations
GN-0220 Torsion vibration operation function Calculating the torsional amount from the differences between two rotation speed signals (including GN-0140)
GN-0230 Envelop Analysis Function Abnormality detection judgment using envelope processing

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