Testing Standard
Mechanical endurance limits are verified through a standardized protocol that subjects components to harmonic oscillations. The iec 60068-2-6 provides a methodology for subjecting hardware to swept sine vibrations across a defined frequency range.
Sinusoidal Vibration
Rhythmic movement applied along three mutually perpendicular axes simulates the steady state mechanical stress found in industrial applications. While using iec 60068-2-6, a laboratory controls the rate of frequency change to ensure that any resonance points are identified. The test profile might span from 10 Hz to 2000 Hz depending on the intended installation environment.
This exposure reveals hidden flaws in the mounting or internal assembly of a component.
Compliance Procedure
Verification of a product involves monitoring its performance before and after the vibration sequence. A device compliant with iec 60068-2-6 must maintain its functional integrity and stay within specified calibration limits after the test ends. Physical inspection follows the mechanical stress to check for loose parts or cracked housings.
Results are documented in a formal test report that lists the specific g levels and durations applied.
Displacement Limit
Low frequency vibrations are governed by the maximum distance the test table moves rather than the acceleration itself. Below a certain crossover frequency, iec 60068-2-6 focuses on a constant displacement to prevent excessive strain on large components. As the frequency increases, the control shifts to a constant acceleration peak.
This dual approach ensures that the test remains realistic across the entire spectrum. Designers analyze these results to confirm that the internal components will not fatigue during transport.