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Preproduction and periodic production inspection |
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|  MIL-A-18977D(OS)
4.4 Preproduction and periodic production inspection. The preproduction
and periodic production samples, after satisfactorily passing the quality
conformance inspections detailed in 4.5, shall be subjected to the fol-
lowing tests and examinations. Certified inspection data covering the re-
sults of preproduction and periodic production inspections shall be for-
warded. to the procuring activity.
4.4.1 Vibration
4.4.1.1 Mounting. The amplifier channel, less pack or packaging, shall
be mounted in the servo amplifier case. The case, mounted securely to a
vibration device by means of its mounting holes, shall be tested as speci-
fied in 4.4.1.2 and 4.4.1.3.
4.4.1.2 Vibration, nonoperating. The amplifier channel shall be
subjected to the "Vibration, nonoperating" test of MIL-E-82590 and there-
after shall meet the requirements of 3.4.1.1.
4.4.1.3 Vibration, operating. The amplifier channel shall be sub-
jected to the "Vibration, operating" test of MIL-E-82590 and during and
thereafter shall meet the requirements of 3.4.1.2.
4.4.2 Temperature and humidty
4.4.2.1 High temperature and humidity, nonoperating. The amplifier
channel shall be subjected to the "High temperature and humidity, non-
operating" test of MIL-E-82590 and thereafter shall meet the requirements
of 3.4.2.1.
4.4.2.2 High temperature, operating. The amplifier channel shall be
subjected to the "High temperature, operating" test of MIL-E-82590 and,
while at the test temperature, shall meet the requirements of 3.4.2.2.
4.4.2.3 Low temperature, nonoperating. The amplifier channel shall be
subjected to the "LOW temperature, nonoperating" test of MIL-E-82590 and
thereafter shall meet the requirements of 3.4.2.3.
4.4.2.4 Low temperature, operating. The amplifier channel shall be
subjected to the "Low temperature, operating" test of MIL-E-82590 and,
while at the test temperature, shall meet the requirements of 3.4.2.4.
4.4.3
To test for operating life as specified in
Operating life.
3.3.7:
4.4.3.1 With the amplifier at an ambient temperature of 65 degrees F
to 95 degrees F (18 degrees C to 35 degrees C), and test preparations
made as specified in 4.5.4.1, allow the amplifier channel to operate for
a period of 30 minutes.
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