MIL-PRF-49166-1 Mechanical Scanner, Mx-9872\(V\)1/Ua

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MIL-PRF-49166/1B(CR)

4.4 Examination. Each Mechanical Scanner shall be examined for compliance with the

requirements specified in 3.2 through 3.5. Any redesign or modification of the contractor's

standard product to comply with specified requirements, or any necessary redesign or

modification following failure to meet the specified requirements shall receive particular attention

for adequacy and suitability. This element of inspection shall encompass all visual examinations

and dimensional measurements. Noncompliance with any specified requirements or presence of

one or more defects preventing or lessening maximum efficiency shall constitute cause for

rejection.

4.5 Methods of inspection. Tests shall be performed utilizing the Scan-Interlace ,

PL-1408/UA with the MX9872(V)1/UA with a scan angle of 13.3, � 0.5 degrees at the 60.0, �

0.5 Hz scan rate. Otherwise, the contractor/supplier may use his own test methods, measuring

devices, tools, fixtures, and other equipment during the conduct of verification testing. This

specification cites no test requirements as long as all the performance requirements per Section 3

are fully verified as being met.

4.5.1 Scan angle and frequency.

4.5.1.1 Variable scan frequency. See MIL-PRF-49166.

4.5.1.2 Specific scan frequency (60 Hz). The MX-9872(V)1/UA shall be connected to the

Scan-Interlace, PL-1408/UA, and mounted to a suitable fixture. Power shall be applied and the

output of the azimuth (Scan) transducer (Scan-Interlace, PL-1408/UA) shall be monitored with a

calibrated frequency counter. The Output of the Scan-Interlace, PL-1408/UA shall be adjusted to

obtain the specified frequency. Not meeting the requirements of 3.5.1.2 constitutes failure.

4.5.1.3 Synchronous scan frequency. The MX-9872(V)1/UA shall be connected to Scan-

Interlace, PL-1408/UA and mounted in a suitable fixture. Synchronization from an external stable

source (such as a TV camera vertical sync pulse) and power shall be applied and the output of the

Azimuth (scan) transducer (Scan-Interlace, PL-1408/UA) shall be monitored with a calibrated

frequency counter. Not meeting the requirements of 3.5.1.3 constitutes failure.

4.5.1.4 Scan angle. See MIL-PRF-49166.

4.5.2 Interlace. See MIL-PRF-49166.

4.5.3 Scan direction. With the MX-9872(V)1/UA operating in either the 2:1 side or the

2:1 rear interlace mode, the outputs of the azimuth and interlace position transducers(Scan-

Interlace, PL1408/UA, shall be observed with an oscilloscope). The output waveforms shall

show the applicable shape and phase relationships shown in Figure 1. Not meeting the

requirements of 3.5.3 constitutes failure.

4.5.4 Power consumption. See MIL-PRF-49166.

4.5.5 Scan efficiency. See MIL-PRF-49166.