3-Axis Center of Gravity Measurement Device

The goal of the project is to create a fixture for measuring the mass and center of gravity for standard SEL devices with complicated geometries and uneven weight distribution in all three dimensions.

=Problem Definition=

Background
SEL designs and manufactures many digital products ranging from transmission protection to control systems around the globe. To better understand the failure modes of the products, a series of mechanical analysis is performed by SEL. But Computer-Aided Design (CAD) models lack detailed information about component density, which leads to inaccurate measurement of the Center of Gravity (CG) of the product. By building a device, which measures the CG of the product automatically, using mass sensors will help to solve the issue of incorrect CG measurement of SEL products.

Deliverables
Proof of understanding of center of gravity measurement techniques

Requirements
Calculates the center of gravity for complex objects in 3 dimensions​ Can measure objects approximately 20" cube down to the size of a cellphone​ Is completely automatic after the sample is inserted​ Displays a result within 3 seconds of measurement concluding​ Has an accuracy within 1% or 0.1 inches​ Hold a static load of 50 pounds​ Operate 1 year without maintenance​ Operate from a standard 120VAC outlet

=Design Considerations=

=Project Learning=

=Final Design=

=Validation=

=Team Members=

=Additional Documentation=

Project Schedule



Meeting Minutes



Presentations



Client Interview