MIL-PRF-23359H
4.7.2.3 Bounce. The detecting set shall be loaded, complete with
accessories, in the transport case. Test the detecting set on a package-
testing machine, with a plywood base, capable of maintaining a constant speed
of 260 rpm (4-1/3 cycles per second) with an amplitude of 1.27 cm for a 2.54
cm excursion. Place the detecting set inside the "fence" with 2.54 cm spare
or "throw". Bounce the detecting set in the three mutually perpendicular
directions; that is, the ends, the sides, and the top and bottom of the
detecting set case shall be subjected to the bumping, each side for a period
of 15 minutes (total time 45 minutes). After this test, the detector shall be
assembled and tested in accordance with 4.5.1.a, b, and c, for all targets.
Any physical damage or failure of the detector to operate in accordance with
4.5.1 shall constitute failure of this test.
4.8
Operational characteristics.
4.8.1 Operational tests. User testing shall assess the ability of the
soldiers, regardless of MOS, to operate, support and maintain each of the
detector candidates in an operational environment during daytime and night
time. Operator and maintenance training shall be conducted in accordance with
the training plan for each type of mine detector. Mine detectors shall be
employed in a manner as prescribed by the operating manual (see 6.4).
4.8.2 Operational detection capabilities. The detector shall have a
greater than 92 percent probability of detecting standard metallic military
mines and mines containing small metallic content buried in various types of
soils at depths consistent with doctrinal placement of mines when operated by
an MOS-immaterial soldier. The distance from the ground to the bottom of the
head when the detector is employed shall be approximately 5 to 20 cm. Mine
lanes shall require the mine detector to be used in areas of long grass,
underbrush, leaves and stones, and with the detector head submerged in water.
The test shall evaluate the ability of soldiers to use the mine detectors when
walking, standing, or in the prone/crawling position while wearing cold
weather gear as well as MOPP IV gear. Testing shall be conducted in existing
weather conditions.
During testing, maintenance and system support package adequacy data shall be
collected and assessed. Machine/operator interface shall be of special
interest during testing. Of particular concern is: the period of time an
operator can continuously operate the mine detector before having to be
replaced; the ease by which the operator is able to locate mines; the number
of times the operator must adjust the null; and the ease of transporting,
configuring, operating, and maintaining the detector.
4.9 Continual operation. Two detectors shall be provided with a fresh set
of batteries and balanced, if required, in ambient conditions. The detectors
shall be placed in saturation with a target placed at the point(s) on the
search head where a maximum signal is received. Leave the detectors as such
for 16 hours. At the 15-hour 45-minute mark, null the detectors, without
changing batteries, and test in accordance with 4.5.1.a through 4.5.1.c.
Failure to operate in accordance with 4.5.1 shall constitute failure of this
test.
4.10 Low voltage performance. Place the mine detector in an ambient
temperature of +25 ±5 °C. Adjust the power source voltage to the detector's
standard operating voltage dc, balance the detector in air and reduce the
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