AutoWave - EM Test

emc test equipment
Specifications
AutoWave
Simulation and recording
of automotive supply systems
The automotive industry is facing the necessity to investigate the behaviour
of the battery voltage variations and their effects on the electronic
components connected to the supply network of the cars, testing emission
and immunity.
The two major international standards describing test procedures to
simulate different phenomena related to the battery supply lines are,
ISO 16750-2 for 12V and 24V supply voltages and ISO 21848-2 for
42V supply voltage.
These test procedures are used by several vehicle manufacturers for their
test specifications.
However, there exists a large variety of different vehicle manufacturers’
specifications which are applying the ISO test procedures but with different
test parameters. Also there are some manufacturers specifying procedures
which are not based on any International Standard. They mainly
are based on in-house experience.
Hence it is a difficult task for test laboratories and suppliers to keep in
line with all these specifications. Therefore the measuring and test
equipment need to be very flexible to perform as many measurement
and tests as possible with the least number of equipment.
EM TEST AG Tel: +41 (0)61 717 91 91
Sternenhofstr. 15 Fax: +41 (0)61 717 91 99
CH-4153 Reinach

AutoWave
Introduction:
The new AutoWave of EM TEST is the appropriate instrument allowing
to simulate all kind of voltage profiles to test the immunity of
the connected electronic components and to investigate the voltage
variations in the battery supply system of a vehicle using an adequate
DC source.
The Architecture of AutoWave:
AutoWave is based on Dual Processor Technology, using an integrated
high power computer, a DSP and a data storage media (hard
disk or flash drive). Thus is capable to work in real time for recording
an generating waveforms.
AutoWave can be controlled either via a GPIB or Ethernet interface.
The Ethernet interface allows fast up- and download of data files.
The USB plug allows also the data exchange with an USB stick
(import of plot files, export of measurement data etc.).
A CAN bus interface is provided for trigger purposes.
The benefits of AutoWave:
- 4-channel arbitrary generator
- 2-channel transient wave recorder
- Sophisticated wizard for wave form generation
- Configurable trigger and DUT monitoring features
- Library containing latest standards versions
- Powerful graphics interface
- Multiple interfaces
- Large memory capacity
- Wide-range supply voltage input
The functions of AutoWave:
The main functions of this versatile test and measuring instrument
are:
WaveGenerator
Easy generation of waveforms as per many automotive standards.
Generation of all kinds of voltage profile via software
Replay of imported data or plot files
WaveRecorder
Recording of voltage variations and replay of measured data via an
adequate dc source or amplifier
Evaluation of a DUT under real world conditions.
AutoWaveControl software. Export of measured data to other analysing
programs such as “MathLab”.
WaveGenerator:
The WaveGenerator does much more than a simple arbitrary generator
as available on the market for common use can do. It is specifically
designed for generating all kinds of wave shapes such as
voltage profiles, cranking waveforms and many more covering the
requirements of the automotive industry.
In its basic configuration the WaveGenerator is equipped with two
output channel. This can be expanded by another two channels for
test requirements such as Ford ES-XW7T-1A278 AC, CI230 requiring
the application of up to four wave forms simultaneously. Each channel
has an output range of 10V with 16bit resolution and a frequency
range from DC up to 50kHz.
The WaveGenerator is controlled by the most versatile and userfriendly
AutoWaveControl software providing the abilities to
- generate any wave form by linking various segments like
DC level, sine wave, sine wave sweep, square wave, triangular
wave, ramp, exponential wave shape, dips etc..
- create wave forms from segments based on mathematical
formulas.
- define wave forms based on point to point data.
- import any plot file from an external measuring instrument.
Using the new WaveGenerator complex and highly sophisticated
wave forms can easily be programmed in a single step with the
AutoWaveControl software package.
AutoWaveControl for WaveGenerator:
AutoWaveControl software for WaveGenerator incorporates a
library of standards including international standards and a number of
manufacturer specifications, updated to the latest state.
The basic AutoWaveControl software includes the following functions:
- Download of pre-programmed standard test routines from the
software into AutoWave.
- Generation of artificial waveforms by graphical or mathematical
tools.
- Management of data files.
EM TEST AG Tel: +41 (0)61 717 91 91
Sternenhofstr. 15 Fax: +41 (0)61 717 91 99 autowavev110.doc
CH-4153 Reinach email: sales@emtest.ch 26.09.06
Switzerland URL http://www.emtest.com Page 2/4

AutoWave
WaveRecorder:
Apart from the traditional transient pulses and voltage variation tests
car manufacturers and their suppliers more and more need to take
care about phenomenon that occur on the supply system when all
subassemblies and components are installed and connected to the
real wiring harness.
The WaveRecorder allows to investigate the effects of subassemblies
and components connected to the battery supply voltage of a
vehicle. Voltages (up to 200Vpp) and currents (via current clamp)
can be measured on two channels simultaneously.
Based on its outstanding technical design the WaveRecorder is
specifically adapted to the requirements of the automotive industry.
Features:
- The built-in storage media (hard disk) allows measurements of up
to 48h depending on the selected sampling rate of 5Hz – 500 kHz.
- The recorded and the generated wave shapes as well as imported
plot files can be reproduced on 4 channels simultaneously.
- The manual operating mode allows to record and replay voltage
profile characteristics to simulate real operating conditions.
AutoWaveControl for WaveRecorder:
The advanced AutoWaveControl software for WaveRecorder includes
the following functions:
- Management of data files.
- Record and replay functions.
- Export of measured data to other analysing tools such as
“MathLab”.
EM TEST AG Tel: +41 (0)61 717 91 91
Sternenhofstr. 15 Fax: +41 (0)61 717 91 99 autowavev110.doc
CH-4153 Reinach email: sales@emtest.ch 26.09.06
Switzerland URL http://www.emtest.com Page 3/4

Technical Data
AutoWave
Number of output
channels
Output voltage 10V,
unipolar or bipolar
Resolution 16 Bit
Frequency range DC ... 50kHz
2 channels;
2 additional channels can be added as
an option (ExtBoard)
Wave Forms
Segment types DC voltage
Sine wave
Sine wave sweep
Square wave
Triangular wave
Saw-tooth wave
Ramp up / Ramp down
Exponential wave
Segment duration Unlimited
Number of segments 100
per wave form
WaveRecorder
Number of input
channels
2 channels
( ExtBoard for AutoWave required )
Input voltage ranges 5V, 10V, 20V, 50V and 100V;
unipolar or bipolar
Resolution 16 Bit
Accuracy better than 0.2%
Frequency range DC ... 50kHz
Sampling rate
5Hz ... 500kHz
(selectable)
Memory Capacity Min. 40GB on hard disk;
File size max. 1GB
Display and Controls
Display Text LCD 2 lines, 40 characters
LED indicators Power On
Active channel 6 ( 2 inputs, 4 outputs )
Trigger
Functional status hard disk
Operation 6 function keys
Trigger and DUT Monitoring
Trigger 2 inputs, 2 outputs
DUT monitoring 2 inputs, configurable
Interfaces
GPIB
Ethernet
USB (for memory stick)
CAN bus (for trigger)
Frame bus (internal system bus)
General Data
Temperature 0...40°C
Humidity 10%...90% non-condensing
Power supply AC: 90V ... 250V , 47Hz...63Hz
Fuses AC: 1A slow blow
Power requirement 40W max.
Dimension 100 x 380 x 390 mm
Weight 6kg
Technical data subject to change without notice.
EM TEST AG Tel: +41 (0)61 717 91 91
Sternenhofstr. 15 Fax: +41 (0)61 717 91 99 autowavev110.doc
CH-4153 Reinach email: sales@emtest.ch 26.09.06
Switzerland URL http://www.emtest.com Page 4/4