GB715136A - Improvements in or relating to balancing machines for use in determining the amount and location of the running out-of-balance of rotary bodies - Google Patents

Improvements in or relating to balancing machines for use in determining the amount and location of the running out-of-balance of rotary bodies

Info

Publication number
GB715136A
GB715136A GB2784751A GB2784751A GB715136A GB 715136 A GB715136 A GB 715136A GB 2784751 A GB2784751 A GB 2784751A GB 2784751 A GB2784751 A GB 2784751A GB 715136 A GB715136 A GB 715136A
Authority
GB
United Kingdom
Prior art keywords
generator
supports
oscillations
voltage
pair
Prior art date
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
GB2784751A
Inventor
Denis Arthur Drew
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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.)
Filing date
Publication date
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB2784751A priority Critical patent/GB715136A/en
Publication of GB715136A publication Critical patent/GB715136A/en
Expired legal-status Critical Current

Links

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

715,136. Electric indicating systems. ROLLSROYCE, Ltd. Nov. 27, 1952 [Nov. 27, 1951], No. 27847/51. Class 40 (1). In a balancing machine wherein a pair of A.C. generators each produce a voltage of amplitude determined by the oscillations of an associated bearing support for a rotary body to be tested and the unbalance voltage from each generator is combined with a fraction of the unbalance voltage from the corresponding other generator in appropriate phase sense to compensate for errors due to oscillations coupled from the associated bearing .support of such other generator each compensating voltage is derived between the adjustable sliding contacts of a pair of resistance potentiometers connected across the appropriate generator, the sliding contacts being ganged together to move in opposite directions over their respective resistances. A rotary body 11 is mounted in the bearing supports 10a, 10b, of a balancing machine which may be of the kind described in Specification 714,351 and on rotation of the body the supports oscillate in a common plane in the direction of the arrows 10c. The supports are coupled to moving coil electromagnetic generators 12a, 13a and 12b, 13b, whose output voltages representing the oscillations of the associated supports energise pairs of parallel potentiometer resistances 14a, 14b having sliders 15a, 15b, mechanically coupled so that as one slider moves towards one junction of a pair the other slider moves towards the opposite junction. A single control multicontact two-position switch is arranged to inter-connect the output of either generator in series with the amplitude and phase sense adjustable output of the opposite compensating potentiometer to energise a coil 25a of a wattmeter whose other coil 25b is energised from an alternator 26 driven at the same speed as the rotary body, and which indicates the compensated magnitude of the un-. balance in the selected generator plane. The generator and compensating voltages may be amplified.
GB2784751A 1951-11-27 1951-11-27 Improvements in or relating to balancing machines for use in determining the amount and location of the running out-of-balance of rotary bodies Expired GB715136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2784751A GB715136A (en) 1951-11-27 1951-11-27 Improvements in or relating to balancing machines for use in determining the amount and location of the running out-of-balance of rotary bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2784751A GB715136A (en) 1951-11-27 1951-11-27 Improvements in or relating to balancing machines for use in determining the amount and location of the running out-of-balance of rotary bodies

Publications (1)

Publication Number Publication Date
GB715136A true GB715136A (en) 1954-09-08

Family

ID=10266265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2784751A Expired GB715136A (en) 1951-11-27 1951-11-27 Improvements in or relating to balancing machines for use in determining the amount and location of the running out-of-balance of rotary bodies

Country Status (1)

Country Link
GB (1) GB715136A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041881A (en) * 1962-07-03 Method and devices for determining vectorial

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041881A (en) * 1962-07-03 Method and devices for determining vectorial

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