Other

Shiv Joshi

Cesar Del Solar

Terrisa Duenas

A strain monitoring system including an array of semiconductor strain gauges. Each strain gauge in the array of strain gauges includes a lithographically fabricated 4-resistor bridge for providing a voltage potential corresponding to the strain in the bridge and thin film transistors to provide addressability to each 4-resistor bridge in the array. After completion of the array of strain gauges, in preferred embodiments the array of strain gauges are transferred to polyimide film which is in turn bonded to a surface region of the component to be tested for strains. Each bridge provides voltage signals corresponding to the strain to which the material under the bridge is being subjected. In preferred embodiments control and data acquisition function are separated from the semiconductor strain gage array. Preferred embodiments the system are utilized to monitor strains on components of aircraft, especially light weight robotic aircraft.

Semiconductor strain gauge array

A miniature modular wireless sensor unit. The unit includes three separate easily assembled and disassembled modules: a processor-communications module, a battery pack module, and a swappable sensor module. Preferred embodiments utilize Bluetooth radio communication technology to communicate sensor data. The total size of preferred embodiments is 1.380 inch&#xd7;0.940 inch&#xd7;0.540 inch. Preferred embodiments are easily programmed and calibrated by lay people to automatically communicate sensor information via Bluetooth techniques to a personal computer, laptop or similar equipment. A wide variety of sensors can be utilized with the standard sensor unit. Various battery pack modules are provided to match battery power with needs.

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Rancho Palos Verdes, CA, United States of America

Shiv Joshi