Dual Voltage, Multiconfigurable Nonrechargeable Battery Design with Adapter

A novel methodology for real-time characterization of the structural behavior of parachutes during inflation is proposed. This method is based on using embedded fiber optic sensors for stress/strain field measurements. A number of sensors will bearranged in a two-dimensional array of elements. Some of these sensors will be positioned along the radial direction of the parachute canopy and others positioned in the hoop direction. Also, a number of sensors will be connected along the parachutesuspension lines. These sensors will be integrated into an opto-electronic monitoring system. Remote sensing technology will be used for the transmission of information from this opto-electronic system to a ground station.During the Phase I work on this project, the concept of using two types of fiber optic sensors for monitoring stresses in canopy fabrics and suspension lines have been successfully demonstrated. The integration of these two types forms a novel sensorysystem capable of measuring the dynamic structural behavior of a parachute during inflation. The phase II work plan will be directed toward the development and calibration of the required sensors and the integration of these sensors into the sensorysystem. The tasks include the design and manufacturing of all the electronic components for signal processing, data acquisition, and remote display of the sensor output. Small-scale laboratory tests and wind tunnel tests will be performed for systemevaluation and calibration. Finally, a normal full-scale airdrop test using a full-sized personnel parachute will be performed. The system output measurements will be coded and transmitted to a ground station.