Boots – shoes – and leggings
Patent
1977-10-31
1979-06-19
Smith, Jerry
Boots, shoes, and leggings
235302, 364580, G06F 1104, G06F 1520
Patent
active
041588843
ABSTRACT:
A portable test set provides field measurements of trim adjustable parameters for a gas turbine engine. Analog input signals from sensors disposed about the engine are filtered, to reduce electromagnetic interference, conditioned, amplified, converted to digital form and provided to a microprocessor. The microprocessor uses the digital input signals and stored data to calculate values for measured trim parameters and outputs the results to a digital readout for display. Circuitry is also provided to permit the operator of the test set to input known data to the engine and/or aircraft in order to verify performance of cockpit instrumentation. The test set also may be placed in an internal test mode for verification of its proper performance.
REFERENCES:
patent: 3287965 (1966-11-01), Brahm et al.
patent: 3485093 (1969-12-01), Muller et al.
patent: 3750465 (1973-08-01), Howell et al.
patent: 3813647 (1974-05-01), Loo
Anderson Ivan R.
McKinley Frederick C.
General Electric Company
Lawrence Derek P.
Policinski Henry J.
Smith Jerry
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