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MIL-DTL-81963 Servocomponents, Precision Instrument, Rotating, Common Requirements And Tests, General Specification ForThis specification covers common requirements and tests for analog, digital and analog/digital precision instrument rotating servocomponents \(synchros, electrical resolvers, electrical, linear resolvers, transolvers, shaft angle encoders, servomotors, tachometer-generators, servomotor-tachometer generators, stepping motors, and gear heads\). This specification will be used with the applicable general specification, which covers a particular class of servocomponents \(for example, synchros\), together with the documents and the specification sheet that cite MIL-DTL-81963 as a direct reference detailing the specific requirement for the individual servocomponent.

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MIL-DTL-81963C
R1
R2
R1
DC
DC SOURCE
AMPLIFIER
RECORDER
M
R4
R3
R2
CENTER
MOTOR
SCALE
SERVOCOMPONENT
DC METER
UNDER TEST
M
-
MOTOR, 1 REV/MIN.
R1
-
RESISTOR, DECADE, 1K
R2, R3
-
RESISTOR, DECADE, 10K
R4
-
RESISTOR, DECADE, 10 OHM
NOTE: A current limiting resistor (1K), if required, would be connected in series with the "dc"
source.
FIGURE 13. Brush contact resistance variation test circuit.
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