FFT Spectrum Analyzer Multipurpose

FFT analyzers

The OROS series multi-function FFT analyzer is PC-based, high-performance, high reliability and easy to operate.

We have further increased the arithmetic processing speed and increased the real-time analysis capacity to more than 16 times that of the conventional model (OR20 series). An ethernet LAN cable is used as the interface.

In addition, the number of simultaneous recording channels in the frequency range (40 kHz) has been expanded to a maximum of 1000 channels and the dynamic range has been improved to 140 dB. These improvements allow a user to measure time signals over a wide frequency range simultaneously on multiple channels.

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• 

  Analyzer Cascade mode

• 

  Modal FRF measurement

• 

  Acoustic Sound intensity

• 

  Vibration on trubomachinery

• 

  NVH automotive measurement

• 

  In flight measurement

Main Features

• From 2-32 channels
• Synchronous measurements up to 1000ch is possible by combining multiple analyzers (*)
• Compact and lightweight (4ch model 1.5kg, 10ch model 3.0kg)
• Achieves high-speed communication with a PC through an ethernet LAN interface
• Equipped with an output channel as a standard
• Built-in internal battery as a standard
• Record, Fast Fourier Transform analysis, octave analysis, and tracking analysis can be performed simultaneously at high sampling frequencies
• Realtime measurements and post-analysis can be performed with the same software platform (NVGate)
• In addition to sound and vibration, strain and temperature can be measured at the same time using XPODS (**)
• CAN-bus module compatible (***)
• Recording is possible with analyzer in standalone mode or in conjunction with a PC (****)

(*) Synchronous measurements that combine multiple analyzers is possible only for TW OR35 / TW OR36 / TW OR38.

(**) The strain / temperature module(XPOD) can be installed only on TW OR35 / TW OR36 / TW OR38.

(***) CAN-bus module can be installed only on OR10/ TW OR35 / TW OR36 / TW OR38.

(****) Stand-alone measurements are possible only with SSD-equipped models OR10 / TW OR35 / TW OR36 / TW OR38.

Introducing the hardware

Small and lightweight

OR10-8ch model: 0.8kg

O4: 4ch model: 0.5kg

OR35 TW: 10ch model: 3.0kg

OR36 TW: 16ch model: 5.2kg

OR38 TW: 32ch model: 8.2kg

Ethernet LAN interface

Achieves high-speed communication with a PC through an ethernet LAN interface

Built-in battery

OR10/ OR35/ TW OR36 / TW OR38: Models have a built-in battery.

OR10 can be operated by battery for 4hours

OR35 can be operated by battery for 3 hours.

TW OR36 / TW OR38 can be operated by battery for 2 hours.

04 operate with battery PC.

External battery

We provide a compact and lightweight external battery that can be installed on all models.

Can be used for up to 8 hours with one external battery.

Can be stored in a "PC integrated carrying case".

Synchronous Measurement Of Up To 1000 Channels is Possible by Combining Multiple Analyzers

(TW OR35 / TW OR36 / TW OR38 only)

High-precision synchronous measurements (0.2 ° @ 20kHz) are possible by simply connecting each analyzer using a general-purpose LAN cable. Function measurements can be taken with the hammer connected to the third unit in the chain and the accelerometers connected to each unit. Tracking analysis can be completed with the accelerometers connected to each unit while using a tachometer connected to the second unit in the chain.

Measure From Sound / Vibration and Strain Gauge / Temperature

(OR35 / TW OR36 / TW OR38 only)

By mounting a strain gauge conditioner and thermocouple conditioner on the Oros FFT analyzer, it is possible to measure strain and temperature data in addition to sound and vibration data.

Thermocouple amplifier: Supports types J, K, T, N, E (with temperature compensation)

CAN-bus Module Available

(OR10/ TW OR35 / TW OR36 / TW OR38 only)

By using the CAN-bus module, tracking analysis can be performed using information such as the engine speed flowing from the CAN-bus. By using this function, tracking analysis can be performed without using a tachometer.

Recording is possible without the use of a PC by using the FFT analyzer in stand alone mode

(OR35 / TW OR36 / TW OR38 only)

The FFT analyzer is equipped with a record-only button. Simply select a predefined measurement setup and press the record button to record onto the FFT analyzer alone without the use of a PC.

In addition, the back of the Fast Fourier Transform Spectrum Analyzer Multipurpose is equipped with an audio terminal and power supply. It is possible to record audio data while also measuring the time signal. The analyzer also can supply power to required sensors, such as proximity probes, tachometers and DC sensors.

Software Introduction

• Easy-to-use interface
• Real-time measurement / post-analysis can be performed with the same software platform (NVGate)
• One-click report creation function

Start the Measurement Quickly and Easily

You can start measuring immediately by using the quick function provided in the OROS FFT analyzer mult function. This is completed by defining the number of input channels in the channel field and the measurement/analysis content in the show results area.

The Oros series FFT spectrum analyzer multifunction uses an interface similar to the ribbon interface used by Microsoft Office. All menus are accessible via the ribbon interface, making it easy to change measurement settings.

One-click Setting Function

With the Oros series multi-purpose FFT analyzer, you can display related measurement condition settings by double-clicking on the measurement screen. For example, if you double-click on the FFT analysis screen, the dialog for setting the measurement conditions for FFT analysis will be displayed on the screen as shown below.

Control Panel

In addition, the OROS FFT spectrum analyzer is equipped with a control panel function that allows users to save frequently used measurement settings for quick access. By using this function, all settings can be changed on the control panel. For example, the following is the setting screen for a hammer test. By saving the input settings, threshold settings, and FFT analysis settings to the control panel as shown below, it is possible to make all the necessary settings quickly by only using the control panel.

Various filters can be applied to recorded signals & FFT analysis results

Four types of filters: Low-pass filter, high-pass filter, band-bus filter, and band-stop filter, can be applied to the results of recorded signal and FFT analysis. By using a filter, it is possible to remove abnormal noise components from the recorded signal and perform processing such as reproducing the extracted abnormal noise components.

Extract arbitrary order components from the color spectrum graph in real time

Any order component can be extracted in real time from the color spectrum graph.

Easy-to-read Layout

The area for arranging windows is called a layout. The OROS multi function FFT analyzer can create up to 16 layouts per project. You can easily arrange your windows by using the layout function. And your windows will open the same way each time.

It is possible to display up to 32 screens in one layout.

Up to 512 windows (= 16 x 32) can be displayed.

Layout utilization example:

Layout 1: Record waveform, FFT analysis result, order ratio analysis result displayed

Layout 2: Display 3D frequency analysis results and 3D order ratio analysis results

Layout 3: Display 3D octave analyzer analysis results

Easy operation <Graph layout selection button>

You can easily arrange windows just by selecting the grid menu.

Batch copy of measurement data with one menu. Numerical data can be transferred to Excel all at once.

Data measured at different times can be overwritten by dragging which allows for easily comparing measurement data.

One-click report creation function

Simply click the report button located on the ribbon interface to create a report file containing the current measurement results.

• The content of the report is customizable. Customize it to the format that best suits your needs.

Measurement data search function

Various information (meta-data) can be added when saving measurement data. You then can search for measurement data and projects based on the added information.

Filter:

• Project name
• Measurement date and time
• Measurement conditions
• Measurement target
• Measurement site
• User

Fail judgment function as standard

The pass / fail feature of NVGate can be performed automatically after setting the desired bounds.

In the example below, a dialog is displayed when the product fails, but it is also possible to output a contact signal instead of the dialog.

Automate post-analysis processing

The same processing can be continuously performed for record files measured multiple times. By using this function, it is possible to automate the generation of reports, and it is possible to generate the same number of post-analysis results and EXCEL-based reports as record files with one click. Processing that used to take more than a week can now be done in a few hours.

specification

Main specifications

	O4	OR10	OR35	OR36	OR38
Dynamical Input channel
Number of analysis channels	2, 4	4, 8	6, 10 (Select Analysis or tachometer on 2 channels)	4, 8, 12, 16	8, 16, 24, 32
Terminal shape	BNC	Lemo (deliverd with "Lemo to BNC" cable)	BNC
Input coupling and sensor support	Compatible with AC, DC / ICP (sensor with built-in amplifier) ​​and TEDS
Cutoff frequency	-3dB at AC cutoff frequency 0.35Hz
Input voltage range	+/-: 100mV to +/-: 40V (auto range function)
Maximum voltage	60V
Anti-Aliasing filter	400dB / OCT
Input impedance	1MΩ <100pF
A / D converter	24-bit
Dynamic range	>140dB
Channels-to-channels phase accuracy	± 0.02 ° (10V, 20kHz range)
Input filter	Acoustic A, C, Z, low pass, high pass, band pass, integrator, differentiator, time axis integration function
Sampling frequency of the signal	Select from 13 ranges between 102.4kHz and 2.048kHz.
Tachometer channel (Ext synch channels)
Number of input channels	2 channels			2 channels (up to 6 channels as an option)
Sampling frequency	6.4MHz (counter method)
Voltage range	+/- 300mV 40V
DC input
number of input channels	none		Analysis channel can be switched and used
Voltage range	none		22 bits, ± 40V, offset DC 100μV or less
Samplingfrequency	none		15Hz or 12.5Hz
Calibration function
Calibration method	Automatic sensitivity calculation by numerical input or reference signal (for position and standard vibration oscillatory meter)
How to use at the time of measurement	Select by registered sensor name such as model name and machine number
Trigger function
Trigger type	Edge, period, △ RPM, △ level, manual, multi (A or B, A and B, A after B)
Trigger delay	Pre- and post-trigger functions
Trigger signal	Select from any input channel
Record function
Sampling frequency	13 ranges from 102.4kHz to 2.048kHz possible to select 2 types of range together
A / D converter resolution	24-bit or 16-bit
Hard drive size	PC hard drive	64 GB SSD		128 GB removable SSD hard drive (256GB or 512 GB optional)
FFT analysis performance
Analysis frequency range	0.8Hz-100kHz	0.8Hz-40kHz
FFT block size	256, 512, 1024, 2048, 4096, 8192, 1638
Number of analysis lines	101, 201, 401, 801, 1601, 3201, 6401
Zoom analysis	2 to 128 times (all channels at the same time)
Overlap setting	0-99.99%
Window function	Flat Top, Hanning, Humming, Kaiser Vessel, Rectangular, Force / Response
Average mode	Time, frequency, fdsa / linear, exponential, peak hold
Analysis / display function
Time series	Real-time waveform, record waveform, DC, Max, Min, RMS
FFT analysis	Linear power spectrum, average spectrum, PSD, cross spectrum, transfer function (H1, H2), copying function
Display color	Display color: Arbitrary specification of trace, cursor, background, and grid display colors
Options:
Time domain analysis (ORNV-TDA)
Analysis items	Monitor display for arbitrary time (msec to day), effective value for arbitrary section, Min, Max, Peak, Peak / Peak, RMS, DC, crest factor, Skew, Kurtosis
1/n octave analysis (ORNV-OCT)
method	Digital filter operation on time domain
Analysis band	1/1, 1/3, 1/12, 1/24 octave (IEC1260: 1995 Class 1, ANSI S1.11-1986)
Analysis frequency	Simultaneous analysis of all channels at 20kHz is possible (DSP option may be required)
Average	Fast, Slow, lmpulse, LEQ, constantBT, linear repeat,exponential
Multi-sound level meter [ORNV-OVA]
Operation method	Time series signal digital operation
Acoustic weithing	Linear, A, C
Measurement	Leq, Fast, Slow, lmpulse, average, Peak, Max, Min
Average	Fast, Slow, lmpulse, LEQ, constantBT, linear repeat,exponential
Synchronous Order tracking analysis [ORNV-ORD]
Analysis function	Instantaneous and average spectrum,phase, order profile and overall.
Maximum rotation speed	1,200,000 RPM
Max analysis ordersetting	6.25, 12.5, 25, 50, 100, 200, 400
Number of analysis lines	25-800
Analysis bandwidth	resampling method and fixed sampling method
display	Simultaneous display of 3D display and tracking order, simultaneous display of time signal
Rotational torsion analysis [ORNV-IVC]
Operation method	Digital Frequnecy Voltage converter
Number of analysis channels	2ch		2ch (up to 6ch as an option)
Rotation diagnosis function [ORNV-FFTDiag]
Analysis items	Envelope analysis, cepstrum, self-cross function, MAX, MIN, peak detection from block data, simulated tach,
Output Channel
Number of output channels	1ch (lemo conector, include)	no output	2ch	2ch (up to 6ch as an option)
Output waveform	Sinus, step sinus, sweep sinus, chirp, multi-sinus, random (pink and white), DC voltage, record signal		Sinus, step sinus, sweep sinus, chirp, multi-sinus, random (pink and white), DC voltage, record signal
Digital / Analogic converter	24 bits		24 bits
Output voltage	+/- 10V		+/- 10V
Output Inpedence	50 Ω		50 Ω
Frequency range	~ 100kHz		~ 40kHz
Sweep mode	Sweep and step, analyze, trigger and sync, linear and log		Sweep and step, analyze, trigger and sync, linear and log
Synchronization with the analysis	Synchronization and free run		Synchronization and free run
Output protection	Stabilization with time specification and forced stop button		Stabilization with time specification and forced stop buttoz
Data
Image and print	Image, printing for Windows and user template creation function for Word and Excel
File	TXT, UFF, MATLAB, WAV (OROS and Audio) SDF, binary, ATFX (optional)
Data entry	WAV, TXT, UFF and OR20 series AE2
Dimensions / weight
Dimensions (width x height x depth mm)	35 x 110 x 185	37 x 174 x 120	56 × 246 × 222	102 x 260 x 311	102 x 364 x 311
Weight	0.5kg	0.85kg	2.8kg	5.2 kg	8.2 kg
Power supply
AC	AC 100V-240V
DC	USB 3.0 type C 5V	USB 15V	10V-28V, 20VA	10V-28V, 60VA	10V-28V, 100VA
DC battery internal operating time (built-in)	NA : using PC battery	4h	3h	2h	2h
Recommended operating temperature range	0 ℃ ～ 40 ℃			0 ℃ ～ 50 ℃			0 ℃ ～ 45 ℃
cooling fan	Fan less	Fan less	Automatic control by built-in temperature sensor, forced stop possible (however, forced ON when the temperature rises above 50 ° C)

PC requirement

Connections	Type: Ethernet, Connector: RJ45
Operating systems	Windows 7 / Windows 10 / Windows 11
Recommended	CPU : Quad core processor (Desktop : Intel Core i3 or Ryzen 3, Laptop : Intel Core i5 or Ryzen 5) RAM : 6 GB Storage : SSD, 1 GB free + storage for signals

Function

Sound Level Meter

Waterfall analysis (three-dimensional display)

Signal record and post analysis

Resonance frequency by impact hammer

Vibration on rotordynamics (orbit,...)

Modal Analysis

Sound Power

Frequency analysis, spectrum analysis

Noise / acoustic analysis

Time series analysis (data logger)

Vibration of rotating machines

Customization (ex: automatic measurement)

Sound Quality

Monitoring

Catalog download

Download

Applications/ Case study

Main application and commonly used functions:

FFT analyzers are used in research and development, quality control, inspection, service departments, etc.

Improvements in vehicle quietness, ride quality, comfort, maneuverability, etc.

• Frequency analysis
• 1 / N octave analysis
• Resonance frequency measurement by vibration
• Experimental mode analysis

Responding to quality problems caused by vibration and noise of vehicles and rotating equipment

• Overall measurement
• Frequency analysis
• Turbomachinery Analysis
• Rotation order ratio / RPM tracking analysis
• Rotational torsional vibration analysis
• Resonance frequency measurement by vibration

Environmental problems caused by noise from construction machinery, office machines, home appliances, etc.

• Overall measurement
• Frequency analysis
• 1/N octave analysis

Problems with processing accuracy due to minute vibrations in microscopes, machine tools, semiconductor manufacturing equipment, etc.

• Frequency analysis
• Resonance frequency measurement by vibration
• Experimental modal analysis

A collection of application examples using the OROS FFT analyzer OROS series

Introducing solution examples that can be provided by various functions unique to OROS FFT analyzers.

• Vibration measurement of cutting machine

Introducing what approach can be taken using the OROS FFT Analyzer to identify mechanical resonance problems due to changes in cutting conditions.
Download on my.oros.com (need register)

• Monitoring of wind power generation equipment and abnormality diagnosis

Measuring vibration noise generated from rotating machines (gearboxes, generators, etc.) in wind power generation equipment is indispensable for equipment maintenance and longevity. In addition to the real-time analysis capability of rotating machinery, which is the strength of the OROS FFT analyzer, remote control / monitoring and stand-alone functions can be used to more efficiently diagnose equipment for wind power generation equipment.
Download on my.oros.com (need to register)

• Diesel engine camshaft rotational twist measurement

In the prototype of a small diesel engine, there is a problem that the rotational torsional vibration of the timing belt and the camshaft resonates, causing a large vibration. By measuring rotational fluctuations and rotational twists with high accuracy using the six tachometer channels mounted on the OROS FFT analyzer, it is clarified which rotational order is dominant for vibration.

Download on my.oros.com (need register)

• Much more Application note on my.oros.com

• 

  Allen Gears: gear box rotating vibration

• 

  Conrad: On helicopter vibration measurement

• 

  Mecalac: Sound power acoustic measurement

• 

  Porsche: acoustic sound quality measurement

• 

  Bosch: Sound power acoustic measurement on anechoic chamber

• 

  IFF Weimar: Vibration on block press

• 

  Blade vibration

• 

  Sicor: Elevator motor vibration

• 

  dBVib: On site measurement on turbomachinery

• 

  BSCA: Vibration balancing test

• 

  Washing macine FRF resonnance frequnecy test

• 

  Vibration measurement

• 

  GDF SUEZ: Windturbine monitoring measurement

• 

  3 analyzers working together

• 

  Alstom: Measurement on turbine

Some references:

Full technical support

• Hotline dedicated

Responsiveness is the key to offer the best level of services. OROS relies on a powerful network of subsidiaries, offices, resellers, maintenance centers and qualified partners. They are the first steps of efficiency.

Tel: +33.4.76.90.52.40
Email: customer.care@oros.com

Your local distributor

• User training course

OROS proposes training specially dedicated to customers every year for free (depending on countries). This is an opportunity to take advantage of your analyzer system capabilities, to get premium information on OROS range evolution, to discuss with your peers, and for OROS, to listen to your product enhancement desires.

• Worldwide presence and accredited maintenance center

With a worldwide coverage of distributor network and maintenance center (China, Europe, India, Japan, Saudi Arabia, South Korea, USA), OROS is in close proximity to its customers, reducing maintenance downtime.

Find Your local distributor

Technicians are certified on a regular basis by OROS specialists, enabling them to repair, calibrate and upgrade all OROS systems.

• Premium contract

1, 2 or 4 years renewable contracts to extend your warranty.

• Access to the latest software version.
• Full coverage on your instrument (calibration and maintenance)
• Guaranteed turn around time (4 days) for hardware repairs and calibration
• Privileged access to extended services at a preferential rate: urgent loan within 1 day.

Video content

We have released videos such as product introductions and demonstrations.

Click here for the youtube video content page

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