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|  MIL-F-48673 (AR)
0.02 5 HZ
RC
Where
R - Load Resistance (ohms)
c-
plus shunt capacitance of cable
Transducer Capacitance
and load (farads)
Strain-gage type transducers may be used provided the undamped
natural frequency is equal or greater than 1.5 KHZ with the damping
approximately 0.64 to 0.70 of critical. (Resonant frequencies
greater than 1.5 KHz are recommended.)
c. Filters. A band-pass filter may be used to display and
record the fundamental frequency of the shock pulse providing it has
band-pass within the frequency range of 0.2 to 650 Hz and will not
degrade the response of the system to exceed the limits specified in
item a, above.
d. Fixture. The holding fixture for the FCC-FTS shall be the
same test fixture used for the vibration test.
4. 8.1.5.2 Shock test equ i pment. The test equi ment listed in
`i
Table XV is required to conduct the shock tests.
A l1 measurements
shall be made with instruments whose accuracy and calibration has
been verified periodically and meet specification requirements.
TABLE XV.
Shock test equipment
.
Calibration
Description
Ranqe/Accuracy
Type/Model
Period
Oscilloscope
0-50 MHz\+ 3%
H-P/180-1801A
As Req'd
Mechanical shock and
O to 750 g, 100 lbs LAB/SD-16-42
As Req'd
Data Acquisition
-1oo
System
Scope Camera
N/A
453
As Req'd
Vertical
Plug in
DC -24MHz 23%
AS Req'd
CA
Amp
Electrical Power
115 vat, 60 Hz
Facility
N/A
10, 30A
Electrical Power
115 VAC, 400 Hz
Facility
IV/A
10, 30A
51
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