Boots – shoes – and leggings
Patent
1988-04-28
1990-01-16
Lall, Parshotam S.
Boots, shoes, and leggings
364550, 340665, 340683, 73577, 73583, G01M 700
Patent
active
048947873
ABSTRACT:
A novel system for determining the magnitudes of loads on rotating helicopter components from signals remotely measured on the helicopter fuselage is characterized by a processor which decomposes the measured signals into corresponding Fourier components and extracts selected components therefrom. A programming module performs a multiplication on the respective Fourier components to correlate the measured components with corresponding determinative parameter values. The parameter values are established in a calibration process which is characterized by determination of the independent values of a measured signal set using a Jones orthogonalization process. The signals output from the coefficient programming module are provided to a multiplying resolver which receives synthesized reference sinusoids from a digital processor and generates time dependent signal components therefrom. These signals are ultimately summed in an analog summer circuit whose output signal corresponds to the desired parameter signal.
REFERENCES:
patent: 4345472 (1982-08-01), Hara et al.
patent: 4485678 (1984-12-01), Flanuele
patent: 4722062 (1988-01-01), Breitkopf et al.
patent: 4758964 (1988-07-01), Bittner et al.
patent: 4764882 (1988-08-01), Braschel et al.
Flannelly William G.
Gunsallus Clifford T.
Lang George F.
Kaman Aerospace Corporation
Lall Parshotam S.
Mattson Brian M.
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