Solartron’s Orbit® Network can be used to connect multiple sensors together to check complex shapes, such as a knee prosthesis. For checking the knee joint pictured here, three Gauging probes were used to check a top surface, while a flowmeter was used to check the diameter and angle of a critical hole in the base of the joint.  All readings can be synchronized and output to an SPC software pack via the Orbit® Network. 

The Challenge

Creating a Knee Prosthesis involves the precise manufacturing of three parts: a femoral, a polyethylene femur tibia, and a tibia base. The geometry of these mechanical parts is critical in enabling comfort for a patient's knee to provide a normal function and improve quality of life. For measurement, all critical angles must be checked to ensure the parts will have proper fit and form. All data must be output to a computer for statistical analysis.

The Solution

The Solartron Orbit® Network can be used to network multiple sensors and output to an SPC Software program. Also, the Solartron Digital Orbit probes can be used to check critical dimensions of the structure.

• A Flowmeter can be used to check the angle via the principle shown in Figure A. The Flowmeter is then connected into the Orbit network using an Analogue Converter Module.
• Digital Probes can also be used to check other features of the component.
• All data is output to an SPC software manufactured by Solex Metrology. Full traceability is also maintained.