Armor plate damage detection system

Patent metadata

Field	Value
Publication number	US-10429253-B2
Application number	US-201615379386-A
Country	US
Kind code	B2
Filing date	Dec 14, 2016
Priority date	Dec 14, 2015
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

An armor plate damage detection and testing system is disclosed that uses an initial electrical signal to generate mechanical energy waves that travel across the armor plate and reflect off the plate surfaces, wherein the reflections of those waves are recorded and analyzed with reference to a previously stored wave reflection signature to determine if damage has occurred to the armor plate. The analyzed results are communicated to the user in real time using a display unit and can further be communicated to a remote entity through an incorporated wireless transmitter.

First claim

What is claimed is:

1. An armor plate testing system comprising:
an armor plate;
a transducer adapted to apply a mechanical signal to the armor plate at a first location, the transducer being adapted to receive, at the first location, a reflected mechanical signal resulting from the mechanical signal, and to covert the received mechanical signal to an electrical signal, wherein the transducer is mounted on or around the armor plate, and the tranducer is the only mechanical signal transducer operationally mounted on or around the armor plate.

2. An armor plate testing system as in claim 1 , wherein the transducer comprises a piezoelectric sensor.

3. An armor plate testing system as in claim 2 , wherein the diameter of the piezoelectric sensor is less than or equal to L·V where L is a chosen excitation pulse length and V is a velocity of the mechanical wave in the material being tested.

4. An armor plate testing system as in claim 1 , further comprising:
a memory configured to store a representation of the electrical signal as a first value.

5. An armor plate testing system as in claim 4 , wherein the memory is a non-volatile memory and the representation of the electrical signal is stored as a known-good value in the non-volatile memory, and the non-volatile memory is attached to the armor plate.

6. An armor plate testing system as in claim 1 , wherein the system comprises a microprocessor configured to compare the electrical signal to a previously determined known-good value of the electrical signal.

7. An armor plate testing system as in claim 6 , further comprising a display configured to display a result the comparison of the electrical signal to a previously determined known-good value of the electrical signal.

8. An armor plate testing system as in claim 7 , wherein the display comprises first and second light-emitting indicators, the first indicator to indicate a fail and the second indicator to indicate a pass.

9. An armor plate testing system as in claim 7 , wherein the display is located remotely from the armor plate, the display being linked by wire or wirelessly to the microprocessor.

10. An armor plate testing system as in claim 1 , further comprising an user-activated button or switch to apply the mechanical signal to the armor plate.

11. An armor plate testing system as in claim 1 , further comprising a user actuator that is remote from the armor plate, wherein the user actuator communicates with the microprocessor either wirelessly or through a wired connection.

12. An armor plate testing system as in claim 1 , further comprising a timer configured to automatically apply the mechanical signal to the armor plate.

13. An armor plate testing system as in claim 1 , further comprising a detector to detect forces on the armor plate, and wherein the testing system is configured to self-activate in response to a detection of forces.

14. An armor plate testing system as in claim 1 , wherein the mechanical signal is a mechanical waveform.

15. An armor plate testing system as in claim 1 , wherein the transducer is mounted on the armor plate.

16. An armor plate testing system as in claim 1 , wherein the transducer is located between a ceramic layer and a plastic layer.

17. An armor plate testing system as in claim 1 , wherein the transducer is located between a ceramic layer and a cover.

Assignees

• Revision Military Sarl
• Revision Military Ltd

Inventors

• Carkner Steve

Classifications

• F41H5/0414

  Layered armour containing ceramic material · CPC title

• F41H5/00

  Armour; Armour plates (processes for manufacturing or treating B21, C21, {heat treatment C21D9/42; wall or panel structure for safes E05G1/024}) · CPC title

• F41H5/0428

  Ceramic layers in combination with additional layers made of fibres, fabrics or plastics · CPC title

• G01L1/16 Primary

  using properties of piezoelectric devices · CPC title

• F41H1/00 Primary

  Personal protection gear (shields for personal use F41H5/08; {footwear for use in minefields A43B3/0026}; for protection against chemical warfare A62B) · CPC title