FI812870L - STOERNINGSFILTER FOER FOERBRAENNINGSGASANALYSATOR - Google Patents

STOERNINGSFILTER FOER FOERBRAENNINGSGASANALYSATOR

Info

Publication number: FI812870L
Authority: FI; Finland
Prior art keywords: stoerningsfilter; foerbraenningsgasanalysator; foer; stoerningsfilter foer; foer foerbraenningsgasanalysator
Prior art date: 1980-12-16

Application number

FI812870A

Other languages

Finnish (fi)

Other versions

FI812870A7 (en

Inventor

David L Matlock

Original Assignee

Econics 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.)

1980-12-16

Filing date

1981-09-15

Publication date

1982-06-17

1981-09-15 Application filed by Econics Corp filed Critical Econics Corp

1982-06-17 Publication of FI812870A7 publication Critical patent/FI812870A7/en

1982-06-17 Publication of FI812870L publication Critical patent/FI812870L/en

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
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Mathematical Physics (AREA)
Theoretical Computer Science (AREA)
Spectroscopy & Molecular Physics (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
General Physics & Mathematics (AREA)
Immunology (AREA)
Pathology (AREA)
Investigating Or Analysing Materials By Optical Means (AREA)

FI812870A 1980-12-16 1981-09-15 STOERNINGSFILTER FOER FOERBRAENNINGSGASANALYSATOR FI812870L (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US21728080A	1980-12-16	1980-12-16

Publications (2)

Publication Number	Publication Date
FI812870A7 FI812870A7 (en)	1982-06-17
FI812870L true FI812870L (en)	1982-06-17

Family

ID=22810387

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI812870A FI812870L (en)	1980-12-16	1981-09-15	STOERNINGSFILTER FOER FOERBRAENNINGSGASANALYSATOR

Country Status (4)

Country	Link
JP (1)	JPS57101745A (en)
DE (1)	DE3139312A1 (en)
FI (1)	FI812870L (en)
GB (1)	GB2089972A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS59145957A (en) *	1983-01-08	1984-08-21	Horiba Ltd	Opto-acoustic type concentration measuring device
JPS63262126A (en) *	1987-04-21	1988-10-28	日本精密測器株式会社	Blood pressure measuring method
US5408314A (en) *	1993-02-24	1995-04-18	Perry; Jeffrey	Dark current subtraction with abbreviated reference cycles and recursive filtering
DE19733920A1 (en) *	1997-08-06	1999-02-25	Forschungszentrum Juelich Gmbh	Device for suppressing interference signals with frequency-dependent adaptation
CA2351792C (en) *	2000-06-26	2010-07-27	Murray J. Thomson	Method and apparatus for improved process control in combustion applications

1981
- 1981-09-15 FI FI812870A patent/FI812870L/en not_active Application Discontinuation
- 1981-09-29 GB GB8129354A patent/GB2089972A/en not_active Withdrawn
- 1981-10-02 DE DE19813139312 patent/DE3139312A1/en not_active Withdrawn
- 1981-10-12 JP JP56162593A patent/JPS57101745A/en active Pending

Also Published As

Publication number	Publication date
FI812870A7 (en)	1982-06-17
DE3139312A1 (en)	1982-08-05
GB2089972A (en)	1982-06-30
JPS57101745A (en)	1982-06-24

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Legal Events

Date	Code	Title	Description
2004-08-31	FD	Application lapsed	Owner name: ECONICS CORPORATION