rotec
www.rotecus.com

For sales and support in North America, please contact:



125 South Main Street
Milford, MI 48381-1963

Phone (248) 685-8148
Fax (248) 685-1577
www.angerinc.com
   
 info@angerinc.com

rotec GmbH - Frankfurter Ring 193a,
D-80807 München


Phone: +49 89 32 36 51 0
Fax: +49 89 32 36 51 56

Specifications:

Vibration Measurement and Analysis Equipment


|Home| | RAS / USA General Specification | | Trigger & Data Acquisition Boards|
| Software, Measurement and Evaluation| |Triggering| |Measurement Channel Configuration|
|Time Domian Evaluation| |Frequency & Order Domain Evaluation|
|Extras: smooth, frequency & order filter, statistics, scaling, spectra, correlation|
|On-Line Mode (real time evaluations)| |Software, Gear Testing| |Rotation-Angle Calculations|
|Absolute Angle Displacement, Special Markings| |Software, Animation| |Software, Simulation|
|Sensors and Sensor Accessories| |Cables| |General Conditions of Delivery| |E-mail



Evaluations performed with rotec software




1. Time Domain (only for time-histories, offline mode)

Representation as function of time or as a function of the number of revs of a reference speed channel, 2D diagrams   

Evaluations for rotational speed

* rotational speed and fluctuation in rotational speed in [rpm]
* angular velocity in [deg/s, rad/s]
* angular acceleration in [deg/s*s, rad/s*s]
* vibration angle in [deg, rad]

Evaluations for analogue quantities

* analogue value
* 1st and 2nd integral, 1st and 2nd derivative

2-channel evaluations taking transmission errors into account, where applicable

* relative angular displacement (transmission error) in [µrad], [deg], [arc seconds], [µm pitch circle]
* difference in rotational speed in [rpm], slip as a fraction [1] or in [%]



Order vs. speed vs. deg/s/s
angular acceleration


Evaluations for Phases
phases [± 180°, 0 - 360°, ± ] for selected orders or frequencies
absolute phases, phase difference between two orders (or frequencies) or between two channels

* phase of the rotational-speed fluctuation
* phase of the analogue value fluctuation
* phase of the angular displacement, difference in rotational speed,
slip

2. Frequency Domain (Order and Frequency Analysis)
Representation as function of time or as a function of the number of revs of a reference speed channel

* 2-dim and 3-dim diagrams, vector plots
* amplitudes of individual orders (or frequencies) and for selected order intervals
* waterfall, Campbell and contour plots, linear or logarithmic, peak or rms

Evaluations for Amplitudes
* rotational speed fluctuation in [rpm]
* angular velocity in [deg/s, rad/s]
* angular acceleration in [deg/s*s, rad/s*s]
* vibration angle in [deg, rad]
* degree of non-uniformity in [%]
* fluctuation in analogue value
* 1st and 2nd integral, 1st and 2nd derivative

2-channel evaluations taking transmission errors into account, where applicable
* relative angular displacement (transmission error) in [µrad], [deg], [arc seconds], [µm pitch circle]
* difference in rotational speed in [rpm], slip as a fraction [1] or in [%]


3. Extras: smoothing, filtering, statistics, scaling, correlation

smoothing for 2-dim curves
* SPLINE for smoothing of curves containing few data points. User-selectable stepwise graduation.
* FIT for smoothing of noisy curves. User-selectable stepwise graduation.
* AUTO for automatic smoothing.
frequency filter IIR, time domain (for time histories)
* user-selectable filter order (1 to 10) and cut-off frequency
* filter types: Butterworth, Chabychev, Cauer, Bessel
* characteristics: low-pass, high-pass, band-pass, band-stop order filter (for time histories)
the orders are deleted in the time domain. This ensures that the data are not distorted due a Fourier transformation followed by an inverse transformation. One individual order or alternatively an order interval may be deleted.
statistics for time histories
* histogram
* cumulative distribution
statistics for overviews (spectra)
* arithmetic, harmonic and geometric mean, median
* variance and standard deviation
scaling of axes
* offset for all axes
* amplification for all axes

spectra (for time histories)
* versus frequencies and orders, linear or logarithmic
* reverse transformation (inverse FFT)

correlation
* auto-correlation and cross-correlation (normalized, not normalized)
* convolution


smoothing menu

filter menu
correlation menu


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