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Optical Based Proximity Sensor for Fuzing


TECHNOLOGY AREA(S): Electronics 

OBJECTIVE: The objective of this effort is to develop a small, low cost, optical based proximity sensor for fuzing applications. Once a proof-of-concept optical design is demonstrated, a cost model should be established, as well as a transition plan to bring the sensors into production. Emphasis during all phases of this project should be on developing a sensor with minimized cost and size. 

DESCRIPTION: Most current fielded proximity sensor today are RF based. With the increasingly cluttered RF environments, the need for different proximity sensor base technologies has been realized. A few key requirements for this sensor are volume <5cm^3, <150mW, -45º to +145ºF operating temperature, ability to survive high G environments (up to 50,000G), <$150 in production of 100k units per year. The targets of interest can range from indirect ground/water targets, to urban environments, along with direct fire engagements on small air targets. Standoff distances anywhere from 0.1m up to 20m could be possible. 

PHASE I: During Phase I, a feasibility study of the proposed sensor concept shall be conducted to provide evidence that demonstrates the concept can meet the stated requirements. This study should identify the equipment and resources needed to prototype a device, as well as initial device designs and unit cost estimates. 

PHASE II: Phase II shall begin by prototyping the initial sensor design and evaluating its performance against the stated requirements. It is expected that one or more design iterations will occur during the 2nd phase. Phase II will end with a proof-of-concept prototype that demonstrates the performance and producibility of the sensor through a gun fired test. Deliverables include quarterly progress reports, prototype hardware, a manufacturing plan, a field test and a final report. 

PHASE III: Phase III shall begin with the execution of the manufacturing plan developed in phase II. Continued development of the sensor shall be pursued to reduce manufacturing costs. Key military applications for these devices are for end game fuzing. This technology can be expanded to commercial applications including car safety awareness systems. 






KEYWORDS: Fuze, Fuzing, Electronic, Diode, Optical, Laser 

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