Howlett, Dylan (Brigham Young University)
Faculty Advisor: Fullwood, David (Brigham Young University, Mechanical Engineering); Bowden, Anton (Brigham Young University, Mechanical Engineering)
Identifying motion of the human spine, and irregularities in movement can be vital for diagnosing a back injury patient. Modern methods of identifying injuries include an expensive X-ray or MRI scan, simple inspection by a trained professional, or very primitive two point instruments. We have developed a strain gauge with high flexibility that is able to withstand repeated high-strain. This gauge is able to properly measure the motion of the lumbar spine, allowing health professionals and patients to monitor the state of their back. This paper presents a survey of different manufacturing methods for these gauges, including screen printing, extrusion and compression molding. The gauges are analyzed for their piezoresistivity vs strain and optimized for the desired application.