GB2160661A - Object detector - Google Patents

Object detector

Info

Publication number
GB2160661A
GB2160661A GB08515989A GB8515989A GB2160661A GB 2160661 A GB2160661 A GB 2160661A GB 08515989 A GB08515989 A GB 08515989A GB 8515989 A GB8515989 A GB 8515989A GB 2160661 A GB2160661 A GB 2160661A
Authority
GB
United Kingdom
Prior art keywords
oscillator
electrode
object detector
discharged
oscillators
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB08515989A
Other versions
GB2160661B (en
GB8515989D0 (en
Inventor
Iain Godfrey Saul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Consolidated Technology Corp
Original Assignee
Consolidated Technology Corp
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 Consolidated Technology Corp filed Critical Consolidated Technology Corp
Priority claimed from PCT/AU1984/000229 external-priority patent/WO1985002268A1/en
Publication of GB8515989D0 publication Critical patent/GB8515989D0/en
Publication of GB2160661A publication Critical patent/GB2160661A/en
Application granted granted Critical
Publication of GB2160661B publication Critical patent/GB2160661B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/088—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with electric fields

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Object detector for detecting studs within walls having an oscillator (G1, R1, R2, D1, C1) with a capacitance (C1) which is cyclically charged and discharged. An electrode (14) is coupled to the oscillator and arranged to produce an electric field therearound. This field is partially discharged when an object is brought near the electrode to vary the output of the oscillator to permit detection of the object. In one specific form there are two oscillators, the outputs of these being variably influenced by introduction of the object near the electrode. <IMAGE>
GB08515989A 1983-11-09 1984-11-08 Object detector Expired GB2160661B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPG230383 1983-11-09
PCT/AU1984/000229 WO1985002268A1 (en) 1983-11-09 1984-11-08 Object detector

Publications (3)

Publication Number Publication Date
GB8515989D0 GB8515989D0 (en) 1985-07-31
GB2160661A true GB2160661A (en) 1985-12-24
GB2160661B GB2160661B (en) 1987-02-11

Family

ID=3770400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08515989A Expired GB2160661B (en) 1983-11-09 1984-11-08 Object detector

Country Status (4)

Country Link
EP (1) EP0165256A4 (en)
JP (1) JPS61500379A (en)
CA (1) CA1229673A (en)
GB (1) GB2160661B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2853058B1 (en) * 2003-03-27 2005-05-13 Valeo Securite Habitacle DETECTION OF PRESENCE BY CAPACITIVE SENSOR

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1289455A (en) * 1970-06-04 1972-09-20
SU748319A1 (en) * 1978-06-02 1980-07-15 Предприятие П/Я Р-6303 Pulsed eddy-current metal locator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099118A (en) * 1977-07-25 1978-07-04 Franklin Robert C Electronic wall stud sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1289455A (en) * 1970-06-04 1972-09-20
SU748319A1 (en) * 1978-06-02 1980-07-15 Предприятие П/Я Р-6303 Pulsed eddy-current metal locator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AU A 12319/83 *
AU A 12831/83 *

Also Published As

Publication number Publication date
EP0165256A1 (en) 1985-12-27
GB2160661B (en) 1987-02-11
JPS61500379A (en) 1986-03-06
GB8515989D0 (en) 1985-07-31
CA1229673A (en) 1987-11-24
EP0165256A4 (en) 1986-09-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee