Which metric is used to measure the acceleration during the shock test?

The metric used to measure acceleration during shock tests is g-forces. This is because g-forces express acceleration in relation to the acceleration due to gravity. In a shock test scenario, the equipment or components are subjected to sudden impacts or changes in velocity, and the effect of these forces is measured in g's (where 1 g is equivalent to the acceleration of Earth's gravity, approximately 9.81 m/s²). This measurement allows engineers to evaluate how well a device can withstand rapid changes in motion or force, which is critical for ensuring reliability in marine electrical systems.

Other units like Newtons, Watts, and Volts serve different purposes. Newton measures force, Watts measures power (the rate of energy transfer), and Volts indicate electrical potential. Each of these metrics does not directly relate to measuring acceleration, making g-forces the appropriate choice for the context of shock testing.