The Power of the Fuze. 60 th Annual Fuze Conference May 11 th, 2017 Harald Wich Diehl & Eagle Picher GmbH

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1 The Power of the Fuze 60 th Annual Fuze Conference May 11 th, 2017 Harald Wich Diehl & Eagle Picher GmbH

2 Overview History, the large Calibre Fuzes Requirements Challenges Miniaturised Fuze Batteries New Test Equipment Conclusions 2 Copyright Diehl & Eagle Picher GmbH

3 Legacy Fuze Batteries PS115 (lead) MOFA post launch DEP 1400x series Requirements Power 1 5 W Energy J Life time < 200 s Rise time > 100 ms 3 Copyright Diehl & Eagle Picher GmbH

4 The Onset In our 2011 presentation we have analysed the requirements and proposed a small Fuze battery 4 Copyright Diehl & Eagle Picher GmbH

The Start Naively we thought substitute a 5 10 mj set-back-generator with a 100 mj fuze battery ¼ the size of the generator is not a big issue we used to build

5 The Start Naively we thought substitute a 5 10 mj set-back-generator with a 100 mj fuze battery ¼ the size of the generator is not a big issue we used to build Artillery/Mortar-Fuze Batteries with 10,000 times more Capacity just reduce the diameter by a factor of 3 and the height by factor of Copyright Diehl & Eagle Picher GmbH

6 Customers Challenge Our 2014 presentation supplemented by DoD SBIR rise time < 10/100 ms current > 2/40 ma voltage > 2.9 V our customer survey 6 Copyright Diehl & Eagle Picher GmbH

7 Bottom Line Requirement Challenges/Highlights * Voltage as high as possible Energy hundred s of mj Power most of the Energy within ms some W s Current hundred s of ma Rise time almost instantaneously t r = close to zero Life time up to 60 s Environment spinning and none spinning * fortunately not all cumulative 7 Copyright Diehl & Eagle Picher GmbH

8 Our first small Battery High Acceleration (no/low spin) DEP at -46 C E > 10 J 8 Copyright Diehl & Eagle Picher GmbH

9 The next small Battery DEP reflecting new customer requirements DEP14202.z; -46 C, spin 9 Copyright Diehl & Eagle Picher GmbH

0.000 0.003 0.006 0.009 0.012 0.015 0.018 0.021 0.024 0.027 0.030 0.033 0.036 0.039 0.042 0.045 0.048 0.051 0.054 0.057 0.060 0.063 0.

03; 2s; -46C, Power = f(t) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 Spannung 0.00 [V] 8R3 0.45-0.50 0.40-0.45 0.35-0.40 0.30-0.

1 Spannung[V] 20R1 Energy = f(t) Spannung[V] 55R1 0.050 0.045 0.040 0.035 0.030 0.025 0.020 0.015 0.010 0.005 0.000 time [s] 0.045-0.

005 2s Battery P 500 mw/cm 2 E 40 mj/cm 2 @ 100 ms until 100 ms time [s] 10 Copyright Diehl & Eagle Picher GmbH

10 Early Voltage/Power Capability Load-Test DEP ; 2s; -46C, Power = f(t) Spannung 0.00 [V] 8R Spannung[V] 12R1#1 3 Spannung[V] 12R2# Spannung[V] 20R1 Energy = f(t) Spannung[V] 55R time [s] s Battery P 500 mw/cm 2 E 40 mj/cm 100 ms until 100 ms time [s] 10 Copyright Diehl & Eagle Picher GmbH

11 current [ma] Load Management Load Profile time [ms] avoid (delay) high current until battery is sufficiently activated (electrolyte has reached the place where it is supposed to be) high capacitive load can be even worse (remember: empty capacitor is a short circuit ) 11 Copyright Diehl & Eagle Picher GmbH

12 New Lab-Test-Equipment projectile w battery slip ring compressed air wiper contact electric valve compression structure 12 Copyright Diehl & Eagle Picher GmbH

13 New Lab-Test-Equipment External Load Panel (e.g. Maccor) or Customer Breadboard Synchronised Load and Data Recording Spin Rate up to 18,000 rpm Test-Time up to 500 s (actually unlimited) 13 Copyright Diehl & Eagle Picher GmbH

14 First Results DEP = none spinning mod of DEP Copyright Diehl & Eagle Picher GmbH

15 Conclusion Lithium Reserve Batteries provide very short Activation Time under high forces Acceleration Spin if properly designed under proper load management 15 Copyright Diehl & Eagle Picher GmbH

Conclusion Lithium Reserve Batteries provide very short Activation Time under high forces Acceleration Spin if properly designed under proper load management Lithium Reserve

16 Conclusion Lithium Reserve Batteries provide very short Activation Time under high forces Acceleration Spin if properly designed under proper load management Lithium Reserve Batteries are able to provide In-Barrel Power! D&EP\Presentations\Fuze\NDIA 60 Fuze Conf\59th Annual Fuze Conference_In Barrel Power Supply, May Copyright Diehl & Eagle Picher GmbH

17 Thank you for your attention! Questions? and don t forget talk to us about your requirements! 17 Copyright Diehl & Eagle Picher GmbH

18 Diehl & Eagle Picher Contact How to Contact us Presenter Harald Wich Mail Diehl & Eagle Picher GmbH Fischbachstrasse Roethenbach a d Pegnitz Germany Phone Fax harald.wich@diehl-eagle-picher.com Web 18 Copyright Diehl & Eagle Picher GmbH

Future Electronic Fuzing for Enhanced Effects. 57 th Annual Fuze Conference July 30 th, 2014 Harald Wich Diehl & Eagle Picher GmbH

Future Electronic Fuzing for Enhanced Effects 57 th Annual Fuze Conference July 30 th, 2014 Harald Wich Diehl & Eagle Picher GmbH Overview Definitions and History Fuze Functions and Categories Modern Electronic