GB1476573A – Apparatus for the determination of unbalance in rotating bodies
– Google Patents
GB1476573A – Apparatus for the determination of unbalance in rotating bodies
– Google Patents
Apparatus for the determination of unbalance in rotating bodies
Info
Publication number
GB1476573A
GB1476573A
GB2502975A
GB2502975A
GB1476573A
GB 1476573 A
GB1476573 A
GB 1476573A
GB 2502975 A
GB2502975 A
GB 2502975A
GB 2502975 A
GB2502975 A
GB 2502975A
GB 1476573 A
GB1476573 A
GB 1476573A
Authority
GB
United Kingdom
Prior art keywords
unbalance
angular position
rotating
revolution
indicating device
Prior art date
1974-06-12
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
GB2502975A
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.)
1974-06-12
Filing date
1975-06-11
Publication date
1977-06-16
1975-06-11
Application filed by Individual
filed
Critical
Individual
1977-06-16
Publication of GB1476573A
publication
Critical
patent/GB1476573A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
G01M1/00—Testing static or dynamic balance of machines or structures
G01M1/14—Determining unbalance
G01M1/16—Determining unbalance by oscillating or rotating the body to be tested
G01M1/22—Determining unbalance by oscillating or rotating the body to be tested and converting vibrations due to unbalance into electric variables
Abstract
1476573 Measuring rotary unbalance A J MORTENSEN 11 June 1975 [12 June 1974] 25029/75 Heading GIN Apparatus for determining unbalance in a rotating body comprises means for supporting the body for rotation, driving means for rotating the body, transducer means for measuring vibration or corresponding pressure variation caused by unbalance of the body when rotating and for converting vibration so measured, or the pressure variation into electrical signals. Electronic means are provided for evaluating the amplitude and angular position of the unbalance from the electrical signals, the electronic means comprising sampling circuits and an angular position indicating device. The electronic means, in use, in each revolution of the body transmits and indicates a succession of signals, each signal in the revolution corresponding to the unbalance at each of a predetermined number of angular positions, e.g. 100. The apparatus further includes storing means for storing at least a fraction of each signal during a number of revolutions so that an average value for the signal for each predetermined angular position may be evaluated thereby providing a determination of the unbalance of the body. The storing means may be capacitors Fig. 1 (not shown), or accumulating circuits Fig. 2 (not shown). In the case of the latter, these circuits may be fed from an analog to digital converter. The angular position indicating device may comprise a disc Fig. 3 (not shown), or other body of revolution, e.g. a cylinder, which, in use rotates with the rotating body. The disc has a plurality of contact points formed by the intersection of radial lines and concentric circles for determining the angular positions, one of the points acting as a synchronizing point. A device is provided for displaying the indication of the angular position of the angular position indicating device when the body under test is stationary.
GB2502975A
1974-06-12
1975-06-11
Apparatus for the determination of unbalance in rotating bodies
Expired
GB1476573A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DK312674AA
DK138345B
(en)
1974-06-12
1974-06-12
Apparatus for determining imbalance in rotating workpieces.
Publications (1)
Publication Number
Publication Date
GB1476573A
true
GB1476573A
(en)
1977-06-16
Family
ID=8119399
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2502975A
Expired
GB1476573A
(en)
1974-06-12
1975-06-11
Apparatus for the determination of unbalance in rotating bodies
Country Status (4)
Country
Link
US
(1)
US4060002A
(en)
DE
(1)
DE2525933A1
(en)
DK
(1)
DK138345B
(en)
GB
(1)
GB1476573A
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2724696C3
(en)
*
1977-06-01
1980-11-06
Carl Schenck Ag, 6100 Darmstadt
Method for determining the unbalance angle and device for this
US4480472A
(en)
*
1982-08-10
1984-11-06
Hofmann Corporation Automotive Service Equipment
Electronic wheel balancer for vehicle wheels
US4457172A
(en)
*
1982-08-10
1984-07-03
Hofmann Corporation Automotive Service Equipment
Electronic wheel balancer with signal conditioning
US4502328A
(en)
*
1982-08-10
1985-03-05
Hofmann Corporation Automotive Service Equipment
Free spinning electronic wheel balancer
EP0168514B1
(en)
*
1984-07-18
1989-05-03
Schenck-Auto-Service-Geräte GmbH
Method and device for arresting a rotating object
US4868762A
(en)
*
1987-09-14
1989-09-19
Balance Technology, Inc.
Automatic digital dynamic balancing machine and method
US7409738B2
(en)
*
2005-04-28
2008-08-12
Freescale Semiconductor, Inc.
System and method for predicting rotational imbalance
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3147624A
(en)
*
1961-02-23
1964-09-08
Gen Motors Corp
Unbalance measuring systems
NL291827A
(en)
*
1961-03-17
US3297860A
(en)
*
1963-06-19
1967-01-10
Technical Measurement Corp
Spectroscopic computer
US3699806A
(en)
*
1967-07-14
1972-10-24
Bjorn Weichbrodt
Early detection of damage to machine elements in rolling engagement
US3681978A
(en)
*
1971-02-23
1972-08-08
Cincinnati Milacron Inc
Method and apparatus for automatically balancing deflection sensors on rotating equipment
1974
1974-06-12
DK
DK312674AA
patent/DK138345B/en
not_active
IP Right Cessation
1975
1975-06-11
GB
GB2502975A
patent/GB1476573A/en
not_active
Expired
1975-06-11
DE
DE19752525933
patent/DE2525933A1/en
not_active
Ceased
1975-06-12
US
US05/586,173
patent/US4060002A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
DK312674A
(en)
1975-12-13
DK138345C
(en)
1979-01-29
US4060002A
(en)
1977-11-29
DK138345B
(en)
1978-08-14
DE2525933A1
(en)
1976-01-08
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Legal Events
Date
Code
Title
Description
1977-10-26
PS
Patent sealed [section 19, patents act 1949]
1985-02-06
PCNP
Patent ceased through non-payment of renewal fee
