MIL-PRF-49166C(CR)
average interlace waveform amplitude (Figure 1) shall not change more than ±20 percent from
the initial setup at ambient temperature (see 3.14.3) over the specified high temperature
operating range
3.7.3 Low temperature. The Scanner shall not be damaged (see 3.14.1) by operation to -
54°C or storage to -62°C. After soaking at -62°C, the average interlace waveform amplitude
(Figure 1) shall not change more than ±20 percent from initial setup at ambient temperature (see
3.14.3) when stabilized at -30°C .
3.7.4 Shock. The Scanner shall not be damaged (see 3.14.1) by high intensity shocks of
100 g's peak amplitude with 11 milliseconds duration and by bench handling tests. The average
interlace waveform amplitude (Figure 1) shall return to the initial amplitude within 0.2 second
after the Scanner is subjected to the operating shock environment, not to include bench handling
test .
3.7.5 Vibration. The Scanner shall not be damaged (see 3.14.1) by vibration over a
frequency spectrum at the specified g levels and amplitudes as shown in Figure 3 for the x, y, and
z axes defined in Figure 4. During specified vibration, the average interlace waveform amplitude
(Figure 1) shall not deviate from the amplitude without vibration by more than ±50 percent. The
sinusoidal cycle time shall be 120 minutes per axis The dwell time shall be 1/6 of the cycling time
at each resonance .
3.8 Soldering. Electrical soldering shall conform to ANSI/IPC-S-815A.
3.9 Reliability. The Scanner shall have a mean time between failure (MTBF) of least 6,058
hours θ°.
3.10 Nameplates and product marking. Unless otherwise specified, Scanner parts and
components, subassemblies, and assemblies shall be marked for identification and reference
designation markings in accordance with the applicable drawing or the requirements of the
contract or purchase order. Use requirement 67 of MIL-HDBK-454 for guidance.
3.11 Treatment and painting. Unless otherwise specified, the Scanner and its components
and parts shall have a surface treatment which will prevent rust, corrosion, and fungus growth in
the full range of environmental requirements. External color and surface shine shall reduce light
reflection and reduce recognition. Adherence must be assured through the full range of
environmental and use factors.
3.12 Preconditioning. Each Scanner shall be operated for at least 8 hours prior to Group A
inspection .
3.13 Workmanship. All electronic parts, components, assemblies or sub-assemblies
shall be free of smudges, excess solder, metal chips or the existence of any foreign material on
any surface. Bearing assemblies shall be free from rust, dirt or tool marks. Wires or integrated
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