Analisi delle strutture per prove di suscettività irradiata nell'ambito della sezione RS105 della norma MIL-STD-461G. Pubblicata in occasione del seminario MIL nel 2017.

1. montena technology
Switzerland
montena.com
The impulse
to your progress
NEMP TEST SYSTEMS
FROM MONTENA
Werner Hirschi
Managing director

2. 07/09/2017
2
 Explosion in an altitude of
several hundreds of km
 (High Altitude EMP –
HEMP)
 Gamma ray impulse
 Compton effect in the
stratosphere (+ other
effects)
 Emission of an
electromagnetic pulse
 Irradiation of an area with
a diameter of several
hundreds of km on earth
Nuclear Electromagnetic Pulse (NEMP)

3. 07/09/2017
3
Setup shown in MIL STD 461 – RS105

4. 07/09/2017
4
Pulse as per MIL-STD 461 E/F/G
RS105
Rise time (between 10% and 90% points) between
1.8 ns and 2.8 ns (electric field continuously
increasing)
Full width half maximum (FWHM) pulse width
equal to 23 ns ± 5 ns
Peak value of the electric or magnetic field for
each grid position: 0 dB ≤ magnitude ≤ 6 dB above
limit

5. 07/09/2017
5
Pulse as per MIL-STD 461 E/F/G RS105

6. 07/09/2017
6
EMP simulator from montena
Distributed
Termination
load
HV
generator
Radiating
line
Ground
plane
Derivative
field
sensor

7. 07/09/2017
7
E-field pulse propagation

8. 07/09/2017
8
Triangular line <–> parallel plates

9. 07/09/2017
9
EUT zone
EUT location and max EUT size
 Field strength 50kV/m (-0, +6dB)

10. 07/09/2017
10
EUT zone
EUT location and max EUT size
 1/3 of the high of the plate (MIL-Std 461)

11. 07/09/2017
11
EUT zone
EUT location and max EUT size
 1/2 of the width of the plate (MIL-Std 461)

12. 07/09/2017
12
Typical test setup installation

13. 07/09/2017
13
Peak E-field homogeneity

14. 07/09/2017
14
Pulse shapes at different locations
Good homogeneity along the vertical axis

15. montena technology
Switzerland
montena.com
The impulse
to your progress
STANDARD NEMP TEST
SYSTEM SIZES

16. 07/09/2017
16
Mobile NEMP simulators dimensions

17. 07/09/2017
17
Mobile NEMP simulator (1.8 m)
Approx. EUT size: 1 x 1 x 0.5 m
1.8 m high RS105 test system with a 80 kV pulse generator
1.8 m

18. 07/09/2017
18
Mobile NEMP simulator (3.6 m)
Approx. EUT size: 2 x 2 x 1 m
3.6 m high RS105 test system with a 230 kV pulse generator

19. 07/09/2017
19
Mobile NEMP simulator (7.2 m)
7.2 m high radiation line
Approx. EUT size: 5 x 3.5 x 3 m (L x W x H)
Indoor or outdoor installation
7.2 m
Up and ready
in less than 3 h

20. 07/09/2017
20
Mobile NEMP simulator (7.2 m)
7.2 m high radiation line
Approx. EUT size: 5 x 3.5 x 3 m (L x W x H)
Pulse Generator 520 kV

21. 07/09/2017
21
Mobile NEMP simulator (3.6 m)
Example of a 5.4 m high NEMP simulator with a
360 kV pulse generator
5.4 m

22. 07/09/2017
22
Custom designed fix NEMP
simulators
Example of a 9 m high radiation line at Armasuisse
(Switzerland)
9 m

23. 07/09/2017
23
Custom designed fix NEMP simulators

24. 07/09/2017
24
Custom designed fix NEMP simulators
800kV pulse generator connected to the 9 m high NEMP simulator

25. 07/09/2017
25
Custom designed fix NEMP simulators
Succefully realized project of a 25m high, 140m long NEMP simulator
with a 2MV pulse generator

26. 07/09/2017
26
Summary
 Montena offers a large range of movable NEMP
simulators with accessories
 Experience in design and development of
permanent NEMP simulators
 Refurbishment of existing installations

27. montena technology sa
route de montena 89
1728 Rossens
Switzerland
products@montena.com
montena.com
The impulse
to your progress
Thank you
for your attention
Werner Hirschi
Managing Director