MIL-PRF-49164C(CR)
TABLE II. First article inspection - Continued.
Inspection
Requirement
Test
paragraph
paragraph
Polarity
3.5.11
4.5.11
AC gain balance
3.5.12
4.5.12
Voltage gain drift
3.5.13
4.5.13
Output noise
3.5.14
4.5.14
Total signal bandwidth
3.5.15
4.5.15
Temperature shock
3.6.1
4.6.1
High temperature
3.6.2
4.6.2
Low temperature
3.6.3
4.6.3
Shock
3.6.4
4.6.4
Vibration
3.6.5
4.6.5
Reliability
3.7
4.7
4.2.3 First article reliability. The lower test MTBF (θ1) shall be demonstrated in
accordance with the following subparagraphs.
4.2.3.1 Test level.
·
Temperature: +50°C, (+5 -0)°C
·
Temperature cycling: none
·
Vibration: 2.2 g's, ±10 percent peak acceleration value at any nonresonant
frequency between 20 and 60 Hz measured at the mounting points of the
equipment. The duration of vibration shall be at least 10 minutes during each
hour of equipment operating time. The vibration shall be perpendicular to the
plan of the printed circuit board.
· Equipment on-off cycling: Turn on and let temperature stabilize, hold for 3 hours,
then turn off and let temperature stabilize. This cycle shall continue throughout
the
test.
4.2.3.2 Parameters. The discrimination ratio θo/θ1 shall be 3.
8
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