Tetra Tech Advent employees continue to participate in and develop cutting edge technologies.

1. Method for Detecting and Measuring Voids in Conductor Insulation Systems, Patent Serial Number 6,002,790, Co-Inventors: DA Horvath and SM Avila

2. Method and Apparatus for Determining Remaining Life of Conductor Insulation Systems through Void Size and Density Correlation, Patent Serial Number 6,076,411, Inventor: DA Horvath

Voids in Aged Electrical Insulation

           aged polyethylene

          ethylene propylene