GB1374699A – Device for delivering an electrical signal when two independent parameters are in a predetermined relationship
– Google Patents
GB1374699A – Device for delivering an electrical signal when two independent parameters are in a predetermined relationship
– Google Patents
Device for delivering an electrical signal when two independent parameters are in a predetermined relationship
Info
Publication number
GB1374699A
GB1374699A
GB945472A
GB945472A
GB1374699A
GB 1374699 A
GB1374699 A
GB 1374699A
GB 945472 A
GB945472 A
GB 945472A
GB 945472 A
GB945472 A
GB 945472A
GB 1374699 A
GB1374699 A
GB 1374699A
Authority
GB
United Kingdom
Prior art keywords
photo
shafts
electrical signal
velocities
predetermined relationship
Prior art date
1971-03-02
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
GB945472A
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.)
Automobiles Citroen SA
Original Assignee
Automobiles Citroen SA
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.)
1971-03-02
Filing date
1972-03-01
Publication date
1974-11-20
1972-03-01
Application filed by Automobiles Citroen SA
filed
Critical
Automobiles Citroen SA
1974-11-20
Publication of GB1374699A
publication
Critical
patent/GB1374699A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
G01P3/42—Devices characterised by the use of electric or magnetic means
G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
Abstract
1374699 Photo-electric apparatus SOC ANON AUTOMOBILES CITROEN 1 March 1972 [2 March 1971] 9454/72 Heading G1A Photo-electric apparatus is arranged to produce an electrical signal when two independent parameters attain a predetermined relationship. The apparatus of Fig. 1 indicates when two angular velocities reach equality and can be adpated to indicate other relationships. The respective angular velocities of two rotating shafts are converted by devices C 1 , C 2 (comprising magnetic drums 5 within spring biased metallic cups 6) into angles A 1 , A 2 of rotation of shafts la, 2a. Mounted on shaft 2a, to rotate therewith, is an arm 8a having a cylindrical sector plate 9a carrying a photo-cell, photo-diode or photoresistor 4a. The other shaft 1 a carries a similar arm 13 with a screen 1la having an aperture 12a. Lamp 3a is mounted on the axis of shafts la, 2a. The arrangement is such that whatever the angular position of photo-cells 4a, when equality between A 1 and A 2 is reached, the aperture 12a allows light to reach the photo-cell to provide an output signal. By arranging a plurality of detectors at different angular positions on the plate 9a, other predetermined relationships between the angles A 1 , and A 2 and thus the velocities of original shafts, may be indicated. A typical application is in the determination of the correct time for coupling of a synchronous motor to a system. Another application envisaged is one in which the two parameters are the speed of rotation of an internal combustion engine and the angle of opening of the throttle, respectively.
GB945472A
1971-03-02
1972-03-01
Device for delivering an electrical signal when two independent parameters are in a predetermined relationship
Expired
GB1374699A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR7107179A
FR2127272A5
(en)
1971-03-02
1971-03-02
Publications (1)
Publication Number
Publication Date
GB1374699A
true
GB1374699A
(en)
1974-11-20
Family
ID=9072765
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB945472A
Expired
GB1374699A
(en)
1971-03-02
1972-03-01
Device for delivering an electrical signal when two independent parameters are in a predetermined relationship
Country Status (5)
Country
Link
DE
(1)
DE2209615B2
(en)
ES
(1)
ES399923A1
(en)
FR
(1)
FR2127272A5
(en)
GB
(1)
GB1374699A
(en)
IT
(1)
IT957245B
(en)
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE925626C
(en)
*
1953-02-25
1955-03-24
Zwick & Co Kg
Device for switching between force and extension counting ranges on testing machines
DE1077446B
(en)
*
1958-02-21
1960-03-10
Rau Swf Autozubehoer
Switch for switching on a signal circuit in measuring instruments
DE1090872B
(en)
*
1958-05-21
1960-10-13
Gossen & Co Gmbh P
Light contact instrument with an upper and a lower limit value assigned photoelectric cells
DE1859393U
(en)
*
1962-07-28
1962-10-04
Hans Trappenberg
CONTACT DEVICE FOR POINTER MEASURING DEVICE.
FR1429599A
(en)
*
1965-03-16
1966-02-25
Cav Ltd
Speed control device in particular for testing fuel injection pumps
US3491247A
(en)
*
1967-06-07
1970-01-20
Ampex
Accurate once-around pulse generating system
1971
1971-03-02
FR
FR7107179A
patent/FR2127272A5/fr
not_active
Expired
1972
1972-02-18
ES
ES72399923A
patent/ES399923A1/en
not_active
Expired
1972-02-29
DE
DE19722209615
patent/DE2209615B2/en
not_active
Withdrawn
1972-03-01
IT
IT937372A
patent/IT957245B/en
active
1972-03-01
GB
GB945472A
patent/GB1374699A/en
not_active
Expired
Also Published As
Publication number
Publication date
DE2209615B2
(en)
1980-12-11
ES399923A1
(en)
1975-04-01
DE2209615A1
(en)
1972-09-14
FR2127272A5
(en)
1972-10-13
IT957245B
(en)
1973-10-10
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Legal Events
Date
Code
Title
Description
1975-04-03
PS
Patent sealed
1977-03-23
435
Patent endorsed ‘licences of right’ on the date specified (sect. 35/1949)
1985-10-23
PCNP
Patent ceased through non-payment of renewal fee
