GB2180639B - Lidars - Google Patents

Lidars

Info

Publication number: GB2180639B
Authority: GB; United Kingdom
Prior art keywords: lidars
Prior art date: 1985-07-23
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

Application number

GB8518554A

Other versions

GB2180639A (en

GB8518554D0 (en

Inventor

Dr Arthur Maitland

Dr Roger Bradley Millington

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.)

Teledyne UK Ltd

Original Assignee

English Electric Valve Co Ltd

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.)

1985-07-23

Filing date

1985-07-23

Publication date

1989-08-09

1985-07-23 Application filed by English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd

1985-07-23 Priority to GB8518554A priority Critical patent/GB2180639B/en

1985-08-29 Publication of GB8518554D0 publication Critical patent/GB8518554D0/en

1987-04-01 Publication of GB2180639A publication Critical patent/GB2180639A/en

1989-08-09 Application granted granted Critical

1989-08-09 Publication of GB2180639B publication Critical patent/GB2180639B/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
- G01N2021/3513—Open path with an instrumental source
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
- G01N2021/392—Measuring reradiation, e.g. fluorescence, backscatter
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
- G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques

Landscapes

Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
Analytical Chemistry (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Chemical & Material Sciences (AREA)
Optics & Photonics (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
General Physics & Mathematics (AREA)
Immunology (AREA)
Pathology (AREA)
Optical Radar Systems And Details Thereof (AREA)
Investigating Or Analysing Materials By Optical Means (AREA)

GB8518554A 1985-07-23 1985-07-23 Lidars Expired GB2180639B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB8518554A GB2180639B (en)	1985-07-23	1985-07-23	Lidars

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB8518554A GB2180639B (en)	1985-07-23	1985-07-23	Lidars

Publications (3)

Publication Number	Publication Date
GB8518554D0 GB8518554D0 (en)	1985-08-29
GB2180639A GB2180639A (en)	1987-04-01
GB2180639B true GB2180639B (en)	1989-08-09

Family

ID=10582703

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8518554A Expired GB2180639B (en)	1985-07-23	1985-07-23	Lidars

Country Status (1)

Country	Link
GB (1)	GB2180639B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3788742A (en) *	1971-06-24	1974-01-29	Westinghouse Electric Corp	Gas monitoring system
US3998557A (en) *	1974-06-03	1976-12-21	Massachusetts Institute Of Technology	Gas detector
GB2060873A (en) *	1979-10-01	1981-05-07	Hartmann & Braun Ag	Photoelectric gas analysis device
US4425503A (en) *	1980-08-05	1984-01-10	The United States Of America As Represented By The Secretary Of The Army	Method for detecting the presence of a gas in an atmosphere

1985
- 1985-07-23 GB GB8518554A patent/GB2180639B/en not_active Expired

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3788742A (en) *	1971-06-24	1974-01-29	Westinghouse Electric Corp	Gas monitoring system
US3998557A (en) *	1974-06-03	1976-12-21	Massachusetts Institute Of Technology	Gas detector
GB2060873A (en) *	1979-10-01	1981-05-07	Hartmann & Braun Ag	Photoelectric gas analysis device
US4425503A (en) *	1980-08-05	1984-01-10	The United States Of America As Represented By The Secretary Of The Army	Method for detecting the presence of a gas in an atmosphere

Also Published As

Publication number	Publication date
GB2180639A (en)	1987-04-01
GB8518554D0 (en)	1985-08-29

Publication	Publication Date	Title
GB8523849D0 (en)	1985-10-30	Rangefinders
ZA865090B (en)	1988-02-24	Substituted di-t-butylphenols
GB8627519D0 (en)	1986-12-17	Substituted benzylhydroxylamines
GB2183417B (en)	1990-01-17	Rangefinder
GB2233182B (en)	1991-05-01	Rangefinder
ZA865091B (en)	1988-02-24	Substituted di-t-butylphenols
ZA866595B (en)	1987-04-29	Substituted oxathiolanes
GB2180639B (en)	1989-08-09	Lidars
GB2315940B (en)	1998-06-24	Radar
GB2317763B (en)	1998-07-15	Radar
DE3662040D1 (en)	1989-03-16	Substituted aminoxyethylsulfoxides and -sulfones
GB2317764B (en)	1998-07-15	Radar
CS535185A1 (en)	1987-03-12	Zapojeni zobrazovaciho televizniho retezce v defektoskopickem zarizeni
CS870485A1 (en)	1987-10-15	Zpusob stanoveni sacharozy v medu
CS214385A1 (en)	1987-07-16	Ulozeni membrany v elektromigracnim pristroji
CS238885A1 (en)	1988-05-16	Sposob urcenia najspolahlivejsej prenosovej cesty medzi dvojicou uzlov v telekomunikacnej sieti
CS379785A1 (en)	1986-12-18	Zpusob mereni vykonu elektromagnetickeho zareni absorbovaneho v ekeltricky ztratovych prostredich
CS487785A1 (en)	1987-01-15	Zapojeni indikace plynovych bublin v tekutem sodiku proudidcim v potrubi
CS172285A1 (en)	1985-11-13	Zapojeni bloku tvorby kmitoctu v zapisovaci
CS568485A1 (en)	1988-06-15	Tvoric oleje v nepretrzite cinnosti
CS599985A1 (en)	1987-07-16	Zapojeni v pristavacim radiolokatoru
CS635885A1 (en)	1986-11-13	Axialna fixacia lozisk valiveho ulozenia hriadela v jednostranne pristupnom naboji
CS718985A1 (en)	1987-09-17	Zpusob stanoveni obsahu hydroxylovych skupin v rganickych latkach
CS1001085A1 (en)	1987-03-12	Zpusob zvyseni obsahu pryskyric v borovych stromech
CS723885A1 (en)	1987-09-17	Zpusob stanoveni koncentrace mikroorganismu v submersnich kultivacich

Legal Events

Date	Code	Title	Description
1990-07-04	PCNP	Patent ceased through non-payment of renewal fee