Introduction; Vibration Profiles - OPTICOM MIL-STD-810F Manual

1.0

INTRODUCTION

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On June 10 , 2005 Weir-Jones Engineering Consultants Ltd. (WJEC) was retained by
Opticom Technologies Inc. to perform a set of vibration tests on its Model CC-02-4.3 CCTV camera.
The primary objective in testing the camera was to verify its structural integrity. This was done by
subjecting the unit to the worst-case vibrational stresses expected in its application environment.
The testing consisted of vibrating the Model CC-02-4.3 CCTV camera in the two mutually
perpendicular axes in accordance with the profiles defined in Sections 4.9 of the SAE J1455 (August
1994) Standard and Method 514.5 of the MIL-STD-810F (January 2000) Standard. The testing of
the camera was performed on June 14 and 15 , 2005.
2.0

VIBRATION PROFILES

The vibration testing of the Model CC-02-4.3 CCTV camera comprised of subjecting the unit
to the Sinusoidal profile as defined in Section 4.9 of the SAE J1455 (August 1994) Standard and to
the Random profile as defined in Method 514.5 of the MIL-STD-810F (January 2000) Standard. The
parameters of the Sinusoidal and Random profiles are summarized below with the graphical
representation of the Sinusoidal profile shown in Figure 1 and that of the Random profile shown in
Figure 2.
Sinusoidal (truck chassis-mounted)
Amplitude*
Sweep rate
Duration
* the step function is intended to simulate the ramp-up from 10 to 20 Hz.
Random (Basic Transportation for U.S. Highway Truck)
Breakpoints
Duration
Weir-Jones Engineering Consultants Ltd.
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- 2 G's from 10 to 12 Hz
2.5 G's from 12 to 14 Hz
3 G's from 14 to 16 Hz
3.5 G's from 16 to 18 Hz
4 G's from 18 to 2,000 Hz
- 0.5 octave per minute
- 180 minutes per axis for each axis. Unit to be operational as
intended during testing.
- as per Figure 514.5C-1
10 Hz 0.015 G /Hz
40 Hz 0.015 G /Hz
500 Hz 0.00015 G /Hz
Overall G level of 1.04
RMS
- 60 minutes is equivalent to 1,000 miles of travel. Unit is
recommended to be operational as intended during testing.
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