Atec Teseq MD-103 - Manual

A d v a n c e d Te s t S o l u t i o n s f o r E M C
Target for precise ESD pulse
measurements
Very small insertion loss variation
Precise gold plated construction
Includes target, attenuator and
cable
ISO 17025 calibration certificate
for the whole set
Calibration procedures on ESD generators call for high class test equipment and a carefully confi gured
test rig. All the elements incorporated within the measurement chain must be matched to one another
before highly accurate measurements with minimal uncertainties can be contemplated.
Faster oscilloscopes enable more complete measurements and analyses of the fast ESD pulses but, of
course, the rest of the components in the measurement chain must be up to the necessary standard and
exhibit the appropriate frequency response. Therefore the MD 103 set offers a complete measuring path
from the target to the attenuator up to the high quality coax cable. The whole path has to be left together
and should not be disassembled into parts, as the whole coupling path is calibrated in one piece.
An important component in this chain is the measurement target. Through a collaborative effort with
the Swiss Federal Institute of Technology, a new type of construction has been developed featuring a
distortion-free, fl at frequency characteristic up to at least 6 GHz.
Standardization committees work on the pulse defi nitions of ESD generators to be specifi ed more accu-
rately and hence to ensure greater reproducibility during test trials. Simultaneously the description
of the calibration test rig confi guration and the measurement conditions have been newly and more
precisely specifi ed.
The newest recommendations are written in the form of a draft standard that has been submitted to
the ANSI as well as the IEC. Results from extensive round robin investigations confi rm the feasibility
and usefulness of tougher calibration requirements. The draft standard specifi es the overall variation
of the insertion loss of the whole measurement chain including cabling and any additional attenuators
as follows:
±0.3 dB up to 1 GHz
±1 dB between 1 and 4 GHz
As a result, the S21 parameter (insertion loss) of a target becomes a decisive factor. The classical
measurement shunt can no longer satisfy these increased demands. The MD 103 target fulfi ls these
specifi cations comfortably. The MD 103 is manufactured with the highest mechanical and electrical
precision and therefore very narrow tolerances are assured. All the important elements are gold plated.
The target is supplied ready for mounting in a screening wall.
The MD 103 is a measurement device for calibration laboratories and specialists, who work right at the
cutting edge of the latest technological know-how. The set will be delivered as a complete chain, consis-
ting of target, attenuator, cable and a ISO 17025 calibration certifi cate including all relevant calibration
data and graphs. A calibration adapter is also supplied with each target as standard. Thanks to the excel-
lent frequency characteristic and the accurately determined parameters this target cannot negatively
infl uence the uncertainty budget of the measurement chain as a whole.
ESD PULSE CALIBRATION SET
MD 103