The paper presents a discussion of the measured speed control accuracy of a Hydro-Mechanical constant speed drive with precise speed trim. The error between the generator output frequency and the precise reference oscillator frequency is measured during generating system operation representing a greatly accelerated flight schedule. The digital instrumentation used to measure the error was developed specifically for this test and is described. The tests were made possible by the availability of a Programmed Test Area (PTA) which allows the test conditions to be repeated accurately through the application of Digital Programming. The test results indicate that frequency control accuracy is essentially determined by the reference.
Experimental Determination of Hydromechanical Constant Speed Drive Precise Frequency Control Accuracy
IEEE Transactions on Aerospace and Electronic Systems ; AES-2 , 4 ; 164-169
1966-07-01
2693513 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Engineering Index Backfile | 1963
|CONSTANT SPEED DRIVE TO CONTROL VARIABLE APU SPEED AND CONSTANT GENERATOR OUTPUT FREQUENCY
Europäisches Patentamt | 2023
|Tema Archiv | 1975
COMBINED HYDROMECHANICAL DRIVE OF PLANETARY GEARBOX GEAR SHIFTING RANGES
Europäisches Patentamt | 2015
|