GB1527834A – Photometry
– Google Patents
GB1527834A – Photometry
– Google Patents
Photometry
Info
Publication number
GB1527834A
GB1527834A
GB8835/77A
GB883577A
GB1527834A
GB 1527834 A
GB1527834 A
GB 1527834A
GB 8835/77 A
GB8835/77 A
GB 8835/77A
GB 883577 A
GB883577 A
GB 883577A
GB 1527834 A
GB1527834 A
GB 1527834A
Authority
GB
United Kingdom
Prior art keywords
disc
light beam
speed
march
chopped
Prior art date
1976-03-03
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
GB8835/77A
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.)
Leybold Heraeus Verwaltung GmbH
Original Assignee
Leybold Heraeus Verwaltung GmbH
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.)
1976-03-03
Filing date
1977-03-02
Publication date
1978-10-11
1977-03-02
Application filed by Leybold Heraeus Verwaltung GmbH
filed
Critical
Leybold Heraeus Verwaltung GmbH
1978-10-11
Publication of GB1527834A
publication
Critical
patent/GB1527834A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
238000005375
photometry
Methods
0.000
title
abstract
2
230000001276
controlling effect
Effects
0.000
abstract
1
230000001105
regulatory effect
Effects
0.000
abstract
1
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
G01J1/00—Photometry, e.g. photographic exposure meter
G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
G01J1/34—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using separate light paths used alternately or sequentially, e.g. flicker
G01J1/36—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using separate light paths used alternately or sequentially, e.g. flicker using electric radiation detectors
Abstract
1527834 Automatic speed control LEYBOLD-HERAEUS-VERWALTUNG GmbH 2 March 1977 [3 March 1976] 8835/77 Heading G3R In photometry apparatus, wherein a light beam is chopped by a rotating aperatured disc 1, the disc speed is regulated by controlling two A.C. magnets 6, 7 in an eddy current drive for the disc. The phase between, or the actual size of, the energizing currents to the magnet coils are varied according to the difference between the measured disc speed and a reference. The speed signal is obtained from the chopped light beam, or from a tachometer independently of the light beam.
GB8835/77A
1976-03-03
1977-03-02
Photometry
Expired
GB1527834A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2608669A
DE2608669C3
(en)
1976-03-03
1976-03-03
Device for measuring the optical absorption capacity of a solid, liquid or gaseous sample
Publications (1)
Publication Number
Publication Date
GB1527834A
true
GB1527834A
(en)
1978-10-11
Family
ID=5971371
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB8835/77A
Expired
GB1527834A
(en)
1976-03-03
1977-03-02
Photometry
Country Status (5)
Country
Link
US
(1)
US4155010A
(en)
DE
(1)
DE2608669C3
(en)
FR
(1)
FR2343243A1
(en)
GB
(1)
GB1527834A
(en)
IT
(1)
IT1104568B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US6439411B1
(en)
*
1998-02-16
2002-08-27
H. Obrist & Co., Ag
Container closure system with warranty element
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4403251A
(en)
*
1980-06-26
1983-09-06
Domarenok Nikolai I
Thermovision pyrometer for remote measurement of temperature of an object
AT390928B
(en)
*
1986-10-17
1990-07-25
Voest Alpine Ag
Device for sensing wheel bearings and wheel tyres of rail vehicles which have been heated up to an unacceptable degree
DE3723177C2
(en)
*
1987-07-14
1996-08-22
Fisher Rosemount Gmbh & Co Ges
Radiation chopper
DE3830181A1
(en)
*
1988-09-06
1990-03-15
Leybold Ag
SLIDING BEARING ARRANGEMENT FOR A RAPIDLY ROTATING SHAFT
DE8902686U1
(en)
*
1989-03-06
1990-04-05
Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
DE3942821A1
(en)
*
1989-12-23
1991-06-27
Rosemount Gmbh & Co
RADIATION CHOPPER DEVICE WITH A CHOPPER DISC DRIVEN BY AN ELECTRIC MOTOR
Family Cites Families (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1838146A
(en)
*
1929-12-12
1931-12-29
Central Scientific Co
Electromagnetic device
DE1014755B
(en)
*
1955-09-19
1957-08-29
Dr Konrad Hoffmann
Method for determining the quotient of two light currents
DE1164116B
(en)
*
1961-05-19
1964-02-27
Continental Elektro Ind Ag
Device for speed control of the luminous flux switching means of photometers
DE1227688B
(en)
*
1962-04-17
1966-10-27
Sick Erwin
Device for measuring the intensity ratio of a first and a second bundle of rays
DE2166382A1
(en)
*
1970-07-04
1974-04-11
Horiba Ltd
DEVICE FOR CALIBRATING THE RADIATION INTENSITY IN OPTICAL MEASURING DEVICES
DE2065118A1
(en)
*
1970-10-27
1972-07-20
Siemens Ag
Light chopper for an ultrared gas analyzer that works according to the two-beam principle. Eliminated from: 2052609
US3729264A
(en)
*
1971-08-09
1973-04-24
Horiba Ltd
Analyzer using the rotor of a motor as a light chopper
US3863071A
(en)
*
1972-06-08
1975-01-28
Infra Systems Inc
Infrared measuring system with channel spectra negation
US4048500A
(en)
*
1976-11-08
1977-09-13
The United States Of America As Represented By The Secretary Of The Navy
Infrared background suppression
1976
1976-03-03
DE
DE2608669A
patent/DE2608669C3/en
not_active
Expired
1977
1977-02-21
IT
IT20507/77A
patent/IT1104568B/en
active
1977-02-28
US
US05/773,028
patent/US4155010A/en
not_active
Expired – Lifetime
1977-03-02
GB
GB8835/77A
patent/GB1527834A/en
not_active
Expired
1977-03-03
FR
FR7706312A
patent/FR2343243A1/en
active
Granted
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US6439411B1
(en)
*
1998-02-16
2002-08-27
H. Obrist & Co., Ag
Container closure system with warranty element
Also Published As
Publication number
Publication date
DE2608669B2
(en)
1980-10-30
FR2343243B1
(en)
1982-01-15
DE2608669A1
(en)
1977-09-15
US4155010A
(en)
1979-05-15
FR2343243A1
(en)
1977-09-30
DE2608669C3
(en)
1981-06-25
IT1104568B
(en)
1985-10-21
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Legal Events
Date
Code
Title
Description
1979-01-24
PS
Patent sealed [section 19, patents act 1949]
1991-12-11
732
Registration of transactions, instruments or events in the register (sect. 32/1977)
1993-10-27
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19930302
