WO2002023221A3 - Method and apparatus for identifying the source of an impulsive or explosive event - Google Patents

Method and apparatus for identifying the source of an impulsive or explosive event Download PDF

Info

Publication number
WO2002023221A3
WO2002023221A3 PCT/GB2001/004086 GB0104086W WO0223221A3 WO 2002023221 A3 WO2002023221 A3 WO 2002023221A3 GB 0104086 W GB0104086 W GB 0104086W WO 0223221 A3 WO0223221 A3 WO 0223221A3
Authority
WO
WIPO (PCT)
Prior art keywords
acoustic
impulsive
microphone
explosive
identify
Prior art date
Application number
PCT/GB2001/004086
Other languages
French (fr)
Other versions
WO2002023221A2 (en
Inventor
Roderick Charles Drew
Meng Li
Original Assignee
Serco Ltd
Roderick Charles Drew
Meng Li
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Serco Ltd, Roderick Charles Drew, Meng Li filed Critical Serco Ltd
Priority to AU2001286085A priority Critical patent/AU2001286085A1/en
Priority to EP01965444A priority patent/EP1317678A2/en
Publication of WO2002023221A2 publication Critical patent/WO2002023221A2/en
Publication of WO2002023221A3 publication Critical patent/WO2002023221A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

This invention consists of a system with the capability of acquiring an acoustic signature with high precision, which can be used to identify artillery or other sources of explosive shock waves from their acoustic signatures. It includes two high-performance microphones (20, 22), one of which acts as a triggering microphone (22). This microphone (22) is harboured within a special chamber (12) containing a floating panel or wall (14), which is inserted in such a way that it is free to vibrate slightly. Any impulsive acoustic signal causes an internal impulse pressure to be built up, causing data acquisition to commence. The anti-alias filtered, digitised signal from the measurement microphone (20) is then processed in such a manner that certain parameters can be extracted. The most significant of these parameters are the 'Modified Mach Number', the 'Sound Intensity Level', the 'Acoustic Shock Wave Energy Potential' and the 'Decision Pattern' and two- or three-dimensional 'Decision Function', which can be used to identify the origin of the explosive or impulsive shock wave.
PCT/GB2001/004086 2000-09-13 2001-09-11 Method and apparatus for identifying the source of an impulsive or explosive event WO2002023221A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001286085A AU2001286085A1 (en) 2000-09-13 2001-09-11 Method and apparatus for identifying the source of an impulsive or explosive event
EP01965444A EP1317678A2 (en) 2000-09-13 2001-09-11 Method and apparatus for identifying the source of an impulsive or explosive event

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0022488A GB0022488D0 (en) 2000-09-13 2000-09-13 Method apparatus for identifying the source of an impulsive or explosive ev ent
GB0022488.1 2000-09-13

Publications (2)

Publication Number Publication Date
WO2002023221A2 WO2002023221A2 (en) 2002-03-21
WO2002023221A3 true WO2002023221A3 (en) 2002-08-01

Family

ID=9899402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/004086 WO2002023221A2 (en) 2000-09-13 2001-09-11 Method and apparatus for identifying the source of an impulsive or explosive event

Country Status (4)

Country Link
EP (1) EP1317678A2 (en)
AU (1) AU2001286085A1 (en)
GB (1) GB0022488D0 (en)
WO (1) WO2002023221A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113884951B (en) * 2021-10-22 2024-04-30 广东电网有限责任公司 Capacitive element monitoring method, device and system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE42281E1 (en) 2000-09-11 2011-04-12 Hamamatsu Photonics K.K. Scintillator panel, radiation image sensor and methods of producing them
CN110095493A (en) * 2019-03-21 2019-08-06 南京理工大学 A kind of detection method of explosive

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3116586A1 (en) * 1981-04-27 1984-03-08 Fried. Krupp Gmbh, 4300 Essen Method for determining gun sites
US5544129A (en) * 1994-08-30 1996-08-06 Aai Corporation Method and apparatus for determining the general direction of the origin of a projectile
GB2298278A (en) * 1995-02-21 1996-08-28 Israel State Detecting the direction and location of noise sources
US5917775A (en) * 1996-02-07 1999-06-29 808 Incorporated Apparatus for detecting the discharge of a firearm and transmitting an alerting signal to a predetermined location
US5930202A (en) * 1996-11-20 1999-07-27 Gte Internetworking Incorporated Acoustic counter-sniper system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3116586A1 (en) * 1981-04-27 1984-03-08 Fried. Krupp Gmbh, 4300 Essen Method for determining gun sites
US5544129A (en) * 1994-08-30 1996-08-06 Aai Corporation Method and apparatus for determining the general direction of the origin of a projectile
GB2298278A (en) * 1995-02-21 1996-08-28 Israel State Detecting the direction and location of noise sources
US5917775A (en) * 1996-02-07 1999-06-29 808 Incorporated Apparatus for detecting the discharge of a firearm and transmitting an alerting signal to a predetermined location
US5930202A (en) * 1996-11-20 1999-07-27 Gte Internetworking Incorporated Acoustic counter-sniper system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113884951B (en) * 2021-10-22 2024-04-30 广东电网有限责任公司 Capacitive element monitoring method, device and system

Also Published As

Publication number Publication date
AU2001286085A1 (en) 2002-03-26
GB0022488D0 (en) 2001-09-19
WO2002023221A2 (en) 2002-03-21
EP1317678A2 (en) 2003-06-11

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