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|  MIL-N-81604C(AS)
Para 3.5.1.9.1d
(cont)
(3)
Z Quantizer D-C Amplifier Monitor - This sig-
*
nal shall be the analog d-c output of the
Z axis quantizer d-c amplifier. This output
*
shall have a sawtooth waveform. The voltage
will vary as the integral of Z acceleration.
Positive acceleration will cause the voltage
to change in a positive direction. When the
voltage magnitude increases to approximately
4 volts d-c, the quantizer will output a
*
*
delta Vz pulse and the d-c amplifier output
will reset to a lower voltage level and then
continue to integrate. Refer to 3.4.4.1d for
*
quantizer scale factor information.
Level Detector X Monitor - This signal shall
(4)
be the analog d-c output of the X axis level
*
detector circuit. This signal shall be
identical in characteristics to the Z quantizer
d-c amplifier monitor, except that the reset
*
level is 8 volts d-c rather than 4 volts d-c
*
when in the navigate mode, and 1 volt rather
*
*
than 4 volts when in the align mode.
Level Detector Y Monitor - This signal shall
(5)
be the analog d-c output of the Y axis level
*
detector circuit. This signal shall be
identical in characteristics to the Level
*
Detector X Monitor.
e.
IMU Ground - The IMU shall provide the following
ground line outputs to the test connector:
(1)
Signal Ground
(2)
Power Ground
(3)
Accelerometer Shield Return
.
(4)
Cable Shield Return
(5)
Slew Sense Return
99
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