Langer P1202, Руководство пользователя

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LANGER
EMV-Technik
DE-01728 Bannewitz
mail@langer-emv.de
www.langer-emv.com
P1202 / P1301 L-ESD set
Pulse-Current Measurement (only P1202) 8.4
Use the measurement output of the P1202 field source to view the internally generated
pulse current. The oscilloscope input has to be set to 50
Ω. Otherwise an external termination
should be used.
Make sure not to exceed the limits of your oscilloscope (Table 12).
If required use an external attenuator
8
.
The appropriate attenuator settings for the oscilloscope (resulting from the shunt / external
attenuator and 50
Ω termination) are found in Table 11. To get a proper pulse-current reading, the
damping factor in the oscilloscope must be set according to the individual attenuator used. The
transfer function is listed below.
Figure 17: Set-up for pulse-current measurement with an oscilloscope.
V
Out
(linear / log)
Attenuator
(linear / log)
Termination oscilloscope
(termination / att.)
Total attenuation
(linear / log)
10 / -20 dB - 50
Ω (-6 dB)
20 / -26 dB
10 / -20 dB 3.2 / -10 dB 50
Ω (-6 dB)
63 / -36 dB
10 / -20 dB 10 / -20 dB 50
Ω (-6 dB)
200 / -46 dB
10 / -20 dB 31.6 / -30 dB 50
Ω (-6 dB)
631 / -56 dB
Table 11: Measurement output
– oscilloscope settings
8
not in scope of delivery