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Method of making an impact locating device with at least three transducers fixed to an interaction surface

A technology for positioning devices and manufacturing methods, which can be used in target indication systems, attack equipment, targets, etc., and can solve the problems of complex and expensive calibration methods

Active Publication Date: 2022-04-19
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this post-fix calibration method is complex and expensive

Method used

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  • Method of making an impact locating device with at least three transducers fixed to an interaction surface

Examples

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Embodiment Construction

[0045] The impact location device 10 shown in front view in FIG. 1 comprises an interaction surface in the form of a plate 12 having a front surface A for receiving an impact P, and a rear surface B (the rear surface is shown in FIG. 3 ), Four piezoelectric transducers PT A 、PT B 、PT C and PT D Distributed and fixed on the rear surface. These four transducers—only their functional parts are delimited by short dashed lines in Figure 1, with four corresponding centrally positioned points C A 、C B 、C C and C D as a center. They are designed to capture the mechanical traveling waves propagating in the interaction plate 12 from the impact P and convert the mechanical traveling waves into electrical signals.

[0046] Apparatus 10 also includes pairs of four piezoelectric transducers PT A 、PT B 、PT C and PT D A central processing unit 14 for electronic processing of the supplied electrical signal is designed to send the piezoelectric transducer PT to the piezoelectric tra...

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Abstract

A method of manufacturing an impact positioning device, the device comprising: an interaction surface (12) having an impact-receiving front surface; and at least three transducers (PT), which should be distributed and fixed on the front surface (A) of the interaction surface (12) or the rear surface (B); the method of manufacture comprises the steps of: determining (102) the centering point (102) of each transducer (PT) on the front surface (A) or rear surface (B) of the interaction surface (12). C); each transducer (PT) is fixed (102) around its central anchor point (C) by forming its underlying conductive layer (28) of the first electrode. The method of manufacture further includes, after securing (102) each transducer (PT), machining (104) the free upper conductive layer (26) of at least one transducer (PT) using a machine tool (32) at least until the transducer ( The step of the intermediate piezoelectric layer (24) of the PT) is formed so as to center the second electrode (34) of the transducer (PT) around the central anchor point (C).

Description

technical field [0001] The invention relates to a method of manufacturing an impact locating device with at least three transducers fixed on an interaction surface. The invention also relates to the shock positioning device resulting from this manufacturing method. [0002] More specifically, the invention relates to the manufacture of an impact locating device comprising an interaction surface with a front surface for receiving an impact, and at least three transducers distributed and fixed on the interaction surface On the front or rear surface, the transducer is designed to capture the mechanical traveling wave propagating in the interaction surface from the impact and convert the mechanical traveling wave into an electrical signal. The manufacturing method includes the following steps: [0003] - determine the central positioning point of each transducer on the front or back surface of the interaction surface, [0004] - fixing each transducer around its central position...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41J5/056
CPCF41J5/056
Inventor J-M·亚历山大R·博登C·博尔兹马赫尔
Owner COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES