MIL-STD-810F Method 514.5
Vibration

Vibration testing is performed to determine the resistance of equipment to vibration expected in its shipment and application environments. Vibration can cause:

1. Wire chafing
2. Loosening of fasteners
3. Intermittent electrical contacts
4. Touching and shorting of electrical parts
5. Seal deformation
6. Component fatigue
7. Display / Touch Panel misalignment
8. Cracking and rupturing
9. Excessive electrical noise

Trimble Trimble Yuma®, Nomad®, Recon® and Ranger™ all passed the following tests:

• Procedure I, General Minimum Integrity: Power Spectral Density = 0.04G²/Hz, 20 to 1000Hz, descending 6dB/oct to 2000Hz. Three axes are tested, one-hour per axis.
• Procedure II, Vibration and Loose Cargo: a Logarithmic sweep 5 to 500Hz beginning at 0.20" displacement. Three axes are tested, 30 minutes per axis.