Sensors based on semi-conductive strain gauges for automated structural health monitoring and medical applications
Abstract »Semi-conductive strain gauges are used to measure stress and temperature and possess all key characteristics required by sensitive elements for structural health monitoring of long-life, safety critical items and medical applications. Their key characteristics are:
• high gain, which generates a very high signal-to-noise ratio in applications;
• long-term stability and repeatability, which makes them suitable for long-life items;
• miniature size, allowing flexible sensor design and direct gauging of parts at peak-stress or peak thermal load zones;
• high resistance, minimizing power consumption and allowing automatic, embedded wireless monitoring application (passive RFID without battery, autonomous wireless mesh networks, etc.).
Proven applications range from industrial, robotics, defence, piping infrastructure and civil structures to critical medical applications in cardiology, orthopedics and neurology.
Key benefits are increased safety and minimization of life-cycle costs: as such they are an ideal support for structural health monitoring of long-life systems.
This paper illustrates the technology and shows some proven applications.
Biography: Dr. Robert Mueller is President and General Manager of Micron Instruments, Simi Valley, California. Micron Instruments is an industry-leading manufacturer of semiconductor strain gages and transducers.
Dr. Mueller has a M.S. in Mechanical Engineering and a Ph.D. in Computer Science. www.microninstruments.com