GB2284891B - Particle detection apparatus - Google Patents

Particle detection apparatus

Info

Publication number
GB2284891B
GB2284891B GB9417206A GB9417206A GB2284891B GB 2284891 B GB2284891 B GB 2284891B GB 9417206 A GB9417206 A GB 9417206A GB 9417206 A GB9417206 A GB 9417206A GB 2284891 B GB2284891 B GB 2284891B
Authority
GB
United Kingdom
Prior art keywords
detection apparatus
particle detection
particle
detection
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.)
Expired - Fee Related
Application number
GB9417206A
Other versions
GB2284891A (en
GB9417206D0 (en
Inventor
Michael John Hutchings
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9417206D0 publication Critical patent/GB9417206D0/en
Publication of GB2284891A publication Critical patent/GB2284891A/en
Application granted granted Critical
Publication of GB2284891B publication Critical patent/GB2284891B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0266—Investigating particle size or size distribution with electrical classification
    • 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
    • G01V3/10—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 using induction coils
    • G01V3/104—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 using induction coils using several coupled or uncoupled coils
    • G01V3/105—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 using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • G01V3/107—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 using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Dispersion Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
GB9417206A 1993-12-15 1994-08-25 Particle detection apparatus Expired - Fee Related GB2284891B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939325623A GB9325623D0 (en) 1993-12-15 1993-12-15 Particle detection apparatus

Publications (3)

Publication Number Publication Date
GB9417206D0 GB9417206D0 (en) 1994-10-12
GB2284891A GB2284891A (en) 1995-06-21
GB2284891B true GB2284891B (en) 1997-08-27

Family

ID=10746628

Family Applications (2)

Application Number Title Priority Date Filing Date
GB939325623A Pending GB9325623D0 (en) 1993-12-15 1993-12-15 Particle detection apparatus
GB9417206A Expired - Fee Related GB2284891B (en) 1993-12-15 1994-08-25 Particle detection apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB939325623A Pending GB9325623D0 (en) 1993-12-15 1993-12-15 Particle detection apparatus

Country Status (1)

Country Link
GB (2) GB9325623D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11982665B2 (en) 2020-11-20 2024-05-14 Dodge Industrial, Inc. Oil quality sensor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9417763D0 (en) * 1994-08-31 1994-10-19 Univ Edinburgh Debris monitoring transducer
JP5537487B2 (en) * 2011-04-12 2014-07-02 日本特殊陶業株式会社 Particle detection system
DE102018133507A1 (en) * 2018-12-21 2020-06-25 Minebea Intec Aachen GmbH & Co. KG Metal detector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2025630A (en) * 1977-11-10 1980-01-23 Goring Kerr Ltd Electrical bridge circuit with compensation for long-term drift
GB2228574A (en) * 1987-09-16 1990-08-29 Simpson Roland B Proximity sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2025630A (en) * 1977-11-10 1980-01-23 Goring Kerr Ltd Electrical bridge circuit with compensation for long-term drift
GB2228574A (en) * 1987-09-16 1990-08-29 Simpson Roland B Proximity sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11982665B2 (en) 2020-11-20 2024-05-14 Dodge Industrial, Inc. Oil quality sensor

Also Published As

Publication number Publication date
GB9325623D0 (en) 1994-02-16
GB2284891A (en) 1995-06-21
GB9417206D0 (en) 1994-10-12

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Legal Events

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

Effective date: 19980825