Sensor arrangement, especially for a landmine

US5489909A · kind A · utility

Assignee

• Diehl GmbH & Co. · DE

Inventors

• Frank-Lutz Dittmann · Eckental, DE
• Wolfgang Babel · Linz, DE
• Robert Westphal · Opfingen, DE

Key dates

• Filing date: May 29, 1992
• Grant date: Feb 6, 1996
• Expiry date: May 29, 2012

Classification

• Technology area (CPC G): Physics
• CPC primary: G06V10/255
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A sensor arrangement for an active member, especially such as a landmine which is deployed against ground and airborne target objects, including a waking or proximity sensor which is responsive to the approach of a target object. A high degree in the precision of direction-finding, in addition to target classification; can be achieved by means of a larger passive bearing or direction-finding base, such as can be set up through the positioning of at least three microphones about the mine or at a certain distance from the mine. Hereby, such a passive acoustic direction-finding or bearing base evidences the advantage in contrast with essentially the active high-frequency direction-finding, in that the mine cannot be located from the target object and thus is able to remain in constant operation upon the activation of a waking or proximity sensor without any danger of the mine having its presence betrayed. For a remote distance resolution for a multiple target-recognition, there must be evaluated a larger passive measurement base, as a result of which this evaluation, for instance, is then operatively associated with the active sensor (radar).