A detector device
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Applicant
Aktiebolaget Bofors
Representative
Gunnar Olsson
Application number
EP88850311A2
Kind
A2
Document number
0314646
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A detector device

0314646 - EP88850311A2 - EPO

Application Sep 20, 1988 - Publication May 03, 1989

Lars-Erik Skagerlund

Abstract

Transmitter and receiver devices (2, 3, respectively) are included in an active optic proximity fuse for realizing increased resistance to aerosols. The transmitter and receiver units operate with optical radiation (6, 7; 8, 9, respectively) and include a signal processing unit (4) which is intended to react to a target (10) located in a sensing regin (AV) and reflecting optical radiation emitted from the transmitter device to the receiver device. The sensing region displays, most proximal a carrier (1) of the proximity fuse, an inner sensing limit which is located at an inner distance (L) from the carrier. The signal processing unit (4) operates with preparatory signal processing and/or time measurement of reflected signals when the target is located within the sensing region, and emits an activation signal only when the target passes the inner sensing limit.

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