Sinus Isignal Index

8/6/2019 Sinus Isignal Index

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siNoise si++Workbench -REMUS MATLAB-Toolbox

SOFTWARE FORACOUSTICS


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siNoise is the new modular software from SINUS Mess-technik GmbH for noise measurements and real-timeanalysis with the HARMONIETM, SoundbookTM andNoiseLOG devices.

Due to the successful symbiosis of DSP technology fromSINUS Messtechnik GmbH and the si++ technology fromAkustik Technologie Gtt ingen we are able to of fer a

universally applicable sound level meter and analyzerwith 2 to 8 measurement channels as a range of compa-tible modules.The following measurements, analyses andadditional functions are available:

Sound level meter, type 1

Measurements in compliance with EN60561,EN60804 and IEC61672-1 standards

Time-weighted sound level with time constants(Fast, Slow, Impulse, Peak) and frequencyweightings (A, B, C, FLAT)

Maximum sound level (Lmax), minimum sound

level (Lmin) and equivalent continuous sound level Leq

Sound exposure level (LE), takt-max sound level(LAtm5 ), peak values ( Lpeak, LCpeak, LCeq)

Level-time histories

Calibratable (application for PTB-approval)

Measurement of tonality

Sound recorder / data logger

Recording of audio signals with full and decimatedbandwidth

Additional recording of slowly-changing values

(4 channels)

Recording of rotational frequencies / phaseinformation (2 channels)

Recording of external events (serial telegrams)

Start / stop via various triggers

Third-octave and octave analyzer

Real-t ime third-octave filter according to IEC1260

type 0 Measurements from 0.5 Hz to 20 kHz

Instantaneous, Leq and max-spectrasimultaneously

Sound monitoring system

Remote control via LAN, ISDN, GSM, GPRS

Control module for automatic measurements

Automatic cyclical microphone calibration

Alarm module for SMS and e-mail messages

Audible monitoring in CD quality via LAN or ISDN

A sophisticated flexible trigger system allows effectivemeasurements and reduces the storage of data that areof no interest. In addition to the event of a signal risingabove or falling below a level, the internal clock, exter-nal messages (serial channels) and the slow channelsof Harmonie can also trigger measurements or controlother activities.

With our client-server concept it is possible to simulta-neously record and analyze the stored data, wherebyit is of no importance whether the system is operated

manually or via a network.

siNoiseTMSoftware for Noise Measurement


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The siNoise software package can be ex-panded to make use of up to 32 acousticchannels for multi-channel applications withMSX16 or several synchronized NoiseLOGstations.

System requirements

The siNoise software package runs on all x86

compatible PCs from PIII-700 onwards underWindows2000/XP or alternatively under Linux.The storage capacity should be at least 256MB (RAM) and 40 GB (HD).We offer the system completely installed ona notebook (Panasonic Toughbook series) orwe can also install and test it on your PC as aservice.

siNoise Analysis

The siNoise software also has a module forthe analysis of environmental measurementdata recorded with HARMONIE, Soundbook,NoiseLOG or the NL22/32 sound level metersfrom RION (SAMURAI).

The most important functions are:

Time-domain analysis of acoustic quantities foruser-defined time-bases and periods

Playback and analysis of recorded audio signals

Averaged spectra in third octaves and octavesfrom 0.5 Hz to 20 kHz

Mult i-spectrum analysis as time histories of third

octaves and octaves in various display modes Computation of results and output as

graph or table:

- Sound level and percentile level over selectedperiods

- Calculation of the contribut ions of individualnoise sources

- Calculation of frequency distribution

- Conversion of emission measurements toimmissions

- Determination of the loudest and quietest

periods- Extraction of selectable time domains for

averaging

- Display of several results in severalwindows, or

- Display of superimposed graphs forcomparison in a single window

- Automatic analysis of measurement fileswith user-selectable procedures

- Determination of noise rating levelaccording to TA-Laerm (German TechnicalGuideline on Noise)

Due to its compatibility with the si++Workbenchsystem, practically all measuring tasks in soundand vibration can be solved. Customer-specificadaptations can be made at acceptable costs.


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si++Workbench is the new intuitive software for soundand vibration analysis from Akustik Technologie Gtt in-gen.

With si++Workbench, all activities from the measure-ment to the print-out can be performed within a singleapplication on your computer with great effectiveness.Your own calculation rules can be defined in a clearly

arranged screen form. si++Workbench enables you togo from the measurement to the printed measurementlog with only two mouse clicks.

The si++Workbench software is ideally suited to theHARMONIE and MSX16 mobile systems.

Intuitive operation

1. Sett ing the channel properties. Current measuringrange and level are shown in the units of the sensor.

2. Determining the recording length and setting the

triggers (level and r.p.m. values)3. Selecting whether time data of the recording or the

results of a real-time calculation such as third-octave spectra or level are to be stored. The recor-ding is entered chronologically into the list ofmeasurements.

4. An overview of all measurements is presented,where selections for further processing can bemade.

During the recording, the selected analyses appear inreal time and the data sets are automatically added to

the list of measurements.

si++WorkbenchModular Acoustic Software Package for Real-Time Analysis and Postprocessing

When changing from theanalysis to the documentati-on window, results are immediately displayed with asuitable layout as a print preview, i.e. the print-out willappear exactly the same as the presentation on thatpage.

If necessary, the presentation can be changed with the

layout editor. Changes can be saved as a new layoutor printed out immediately as new documentation.

si++Workbench contains the new si++ documentationmodule siDoc2, where further information can be inte-grated together with the plots in pre-designed layoutsor custom layouts can be designed. Under Windows,graphics can also be exported via the Windowsclipboard. The si++ Project Management module isavailable as an optional extra, making all relevant datainstantly available.

Overview of Functions

The following analysis functions are available in thereal-time display during recording:

Time signal

Level history

Sound power level

Order level

Third-octave spectra

Sound power third octave

FFT spectra

Order spectra


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si++Workbench includes the following analyses:

Spectral analysis for airborne sound:

Spectrogram

Mean spectrum

Level over time

Mean level Third-octave spectrogram

Mean third octaves

Articulation index

Psychoacoustics:

Loudness

Specific loudness

Sharpness

Roughness

Fluctuation strength

Human-ear filter bank

Modulation analysis

Sound power measurement:

Sound power over time

Mean sound power

Sound power in thirdoctaves

Mean sound power inthird octaves

Third octaves over time

Mean third-octave spectra K2 calculation

Order analysis:

R.p.m. display and correction options for badpulse tracks

Total level and selected orders over r.p.m.

Order spectrum over r.p.m.

Mean order spectrum over r.p.m. Third-octave order spectrum

Mean third-octave order spectrum

Spectrogram over r.p.m. Level over r.p.m.

Further functions:

Averaging of results

Determination of minima and maxima

Calculation of transfer functions

Spectral analysis of structure-borne sound

Sound intensity measurement Monitoring of audio recordings

Monitoring of filtered recordings

Data conversion from and to other formats

The number of available functions is continuallyincreasing. The si++toolbox allows over 200commands to be combined for defining newcalculation rules, so that a tailor-madeanalysis can be implemented forpractically any task.

We also carry out such adaptations as aservice for our customers.


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This signal analysis software package from CAESARDatensysteme GmbH, which is mainly intended formechanical engineers, works optimally together withthe HARMONIE and MSX16 multi-channel hardwareplatforms.

The mechanical and test engi-neer is provided with synchro-

nous digital measuring chan-nels having high resolution andenough outputs for measure-ments in the laboratory, withtest rigs and on the road.

The -REMUS software pa-ckage is multi-functional andoffers the competent useralmost unlimited possibilities.

During the measurements the

selected results are displayed inup to 16 real-time windows.

The measurement data arerecorded in parallel on thehard disk and are available forfurther analysis as required.

In addition to the measurement data typical for mecha-nical engineering, airborne sound measurements (thirdoctave, FFT, sound level) can also be recorded andanalyzed.

Data can be stored and output in variousdifferent formats (WMF, WAV, Graph andothers).

Overview of -REMUS functions:

Signal analysis

Order analysis

Modal analysis

Rotor balance analysis

The Signal analysis package of -REMUS

includes:

Time history: A,- B-, C-, KB-and MS-weighted

FFT real, imaginary, amplitude,phase, Nyquist

Power and cross-powerspectra

Transfer functions, coherence

1/1-, 1/3-, 1/12-, and1/24-octave analysis

-REMUSSignal Analysis Software for the Production Engineer


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The Order analysis package of -REMUS allows therecording and analysis of run-ups and run-downson- and offline with:

Displays of amplitude, order and octaves

Waterfall and Campbell diagrams

Scaling with respect to theangular position

Torsional vibration analysis

The Modal analysis package is perfor-med with transfer functions that havepreviously been recorded during thesignal analysis.

Transfer functions in UFF-format canalso be imported.

The following modal quantities aredetermined:

Natural frequency Damping ratio

Eigenvectors

A user-friendly measurement data managementsystem, a geometry editor and animation facilitatethe engineers work.

The Rotor balancing package includes two modes forbalancing rotors, differentiatingbetween rigid and flexible rotors.

A rotor showing no elastic distor-tions at a constant spin speed iscalled a rigid rotor otherwise itis described as a flexible rotor.-REMUS optimally supportsboth cases .

The screen-shots illustratethe processes involved inbalancing rigid rotors:

Initial run

Taring run

Balance prediction Balance run

Balance protocol


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The MATLAB toolbox from SINUS enables HARMONIEand MSX16 users to benefit from the power, flexibilityand high performance of the MATLAB engineering tool,which is widely used in industry and research.

The SINUS hardware can be directly operated from thecommand level of MATLAB, via function calls or viagraphical user interfaces.

As a partner of The MathWorks Inc., SINUS MesstechnikGmbH can support you in the development of your own

MATLAB applications as well as delivering the requiredMATLAB modules.

In addition to running programs in interpreter mode, asis possible for every user of a MATLAB license, MATLABprograms can now also be compiled via C code.

In addition to the performance gains attained, thelicense freedom and the protection of source code areof considerable economic importance both for thedevelopers and for the end-users.

Current applications include:

Development of algorithms and applications forsound and vibration measurement

Demonstration experiments for acoustics as auniversity subject

Research in meteorology

Environmental research

Measurement methods in tropospheric research

Research into automatic signal recognit ion

Design and testing of car components

3D intensity measurements using the icroflownprobe

The graphics on this page are taken from severalMATLAB applications using HARMONIE and MSX16in the framework of our own development projects.

MATLAB ToolboxMATLAB Power for HARMONIE and MSX16

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