NEMESYS GmbH
NEW MEASUREMENT SYSTEMS

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FUNCTIONAL PRINCIPLE:

Any analog signals in the range of 10V are captured synchronous using up to eight (sixteen) input channels.
The signals are sampled at the same time with a resolution of 16 bits (0.3 mV, 97 dB typical dynamic range). The sample rate is up to 48 kHz per channel regardless of the number of channels used. Combined digital and analog anti aliasing filters give a high quality phase reproduction.
Based on a time window or an external trigger input the sampled data is normalized for further evaluations.

Vibration Analyzer AA8 / 22KB

In addition the hardware supplies a high performance digital signal processing unit enabling the following functions:

Filter for every channel using FIR architecture with linear phase response.
Order tracking filters when using the zero pulse input. Phase linear FIR filters are used.
Delay of single channel signals to synchronize time delayed input channels.
Online display and calculations (fourier transformation, add, sub, correlation)
Various trigger functions based on speed and time values.
Resampling of the input signals to get a constant number of input samples by a 50 times over sampling filter and interpolation architecture.
The results with the corresponding phase information are transmitted via the RS 232 port.

Vibration Analyzer AA8 in serial connection / 24KB

Using the WinVA software (shipped with an AA8) the results may be displayed online. Processing and storing of the data is supported by this software.


COMPLETE PACKAGE INCLUDING SOFTWARE WinVA:

The software WinVA completes the system and guarantees a user friendly operation.
A software package for Windows NT/95 is a scope of supply of the analog signal Analyzer AA8. Additionally a serial cable for the RS 232 interface and a link cable for the operation of two AA8 is supplied.

WinVa software
/ channel setting / 75KB

The settings of the analog signal Analyzer AA8 may be interactive set up and stored. Measurement results may be online displayed, evaluated and stored in files.
A wide range of diagram types (waterfall, orbit, order tracking...) is available.


FEATURES:

Modular design
Analysis of eight (sixteen) analog input channels in the frequency range of 0.01 to 22’000Hz with up to 4’000 spectral lines, in the order range with up to 200 spectral lines.
Sample rate of up to 48’000Hz per channel regardless of the number of channels used.
State of the art floating point DSP (digital signal processing) system
User friendly operation using a PC
0scilloscope mode with DSP based functions on the Vibration Analyzer AA8
Windows software WinVA Two programmable analog outputs: Sine with special functions and a resolution of 20 Bits. Output of single or combined measurement signals
Serial transmission rate of 115200 Baud
Portable device for at site applications
Uninterruptable power supply
Application specific tested by well known companies
DA2 (Vibration Analyzer with digital inputs for torsional vibrations)connectivity


TECHNICAL SPECIFICATIONS

Power supply: 110-240 VAC /12-24 VDC / 40 VA
Uninterruptable power supply with built in rechargeable batteries
Remote functions via RS 232 interface
Online operation including analog output without host available
Online oscilloscope mode with mathematical functions using the integrated graphics LCD
Transmission of digitized measurement results using the RS 232 interface
Evaluation and display of measurements using the WinVA software package for Windows NT/95
Networking of Vibration Analyzer devices (e.g. AA8/DA2, DA2/DA2 ..)

ANALOG INPUTS

Eight analog inputs (sixteen using two AA devices in network mode)
Input range: 10V
Sample rate up to 48kHz per channel regardless of the number of channels used
Resolution: 16bit / 0.3mV
Input impedance: about 5kOhm

DIGITAL INPUT

Trigger input with a programmable switching threshold of 0.1 to 5V
Programmable number of Trigger pulses per revolution in the range of 0.5 to 1’000
Input voltage: Operating 0-15V (Max. 16V)
Input impedance: Programmable for NPN (2 kOhm) or PNP (1 kOhm) pickup types

ANALOG OUTPUTS

Two analog outputs. Programmable as sine outputs or result outputs of single or combined input channels
Output voltage: 10V
Resolution: 20 Bit (19µV)

DIGITAL I/O

RS 232 interface for transmission of measurement data (115200 Baud)
RS 232-2 interface for connection Vibration Analyzer DA2 devices (115200 Baud)
Link port for connecting Vibration Analyzer AA8 devices (240 Mbaud)
Synchronous programmable serial interface for direct connection of devices supporting digital interfaces (up to 25 Mbaud)

SCOPE OF SUPPLY

Analog Analyzer AA8
Software package WinVA for Windows NT/95
RS 232 / link port cable

DIMENSIONS AND WEIGHT

300*200*80 mm
5,1 kg

All specifications subject to change. All trademarks are the property of their respective owners.


About Nemesys Products Price List Press Release Question Back to Homepage

Nemesys GmbH phone: +41-1-480 02 74
Wernerstrasse 19 fax: +41-1-480 02 75
CH-8038 Zuerich - Switzerland email:
 support@nemesys.ch

2001Author: Andrebossert@nemesys.ch