Development of a 3-component strain-gauge for use on the whirling arm

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dc.creator Holloway, W. G.
dc.creator Kumar, P. E.
dc.creator Osbourn, W. 2017-07-31T09:03:12Z 2017-07-31T09:03:12Z 1969-10 2020-11-30T18:29:58Z 2020-11-30T18:29:58Z
dc.description.abstract This note covers the development of two strain-gauge balances for use on the Whirling Arm Facility of the College. The main requirements for this balance were:- (a) to withstand 700 lbs of sideload without it interfering with the lift, drag and pitching moment measurements, (b) to have a high sensitivity without too heavy a structure. The balance originally designed for this purpose proved to be unacceptable because of undue interference due to sideload and the non-repetitive nature of its calibration curves. With the information gained from this first balance a second balance of exceedingly simpler design, was manufactured and was found to give good calibration curves and sensitivity, with little interference from sideloads. A trouble free method of recording the signals from the strain-gauge bridges is being developed and should be operating within the near future. It concluded that a new model, with its c.g. lying on the transverse centre-line of the balance, will be needed if sideload interference is to be further reduced.
dc.language en
dc.publisher College of Aeronautics
dc.relation CoA/N/AERO-178
dc.relation 178
dc.title Development of a 3-component strain-gauge for use on the whirling arm
dc.type Report

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