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A wearable Flexible Blast Monitor to detect, record and display the peak shock experienced by personnel exposed to high energy explosions can help in early detection of possible traumatic brain injury (TBI). Sensors fabricated on flexible substrates allow for the systems to be mounted on non planar surfaces overcoming the limitations of rigid sensors. The design detailed here uses a contact mode measurement...
A diaphragm-type optical fiber pressure sensor, which has a sleeve for fiber insertion, is proposed, and its fundamental characteristics are demonstrated. The sleeve structure is fabricated by deep reactive ion etching (DRIE). The diaphragm with the sleeve is suitable for highly reliable and easy bonding between the sleeve and an optical fiber. The light intensity change by a Fabry-Perot interferometer...
Capacitive humidity sensors were fabricated using countersunk interdigitated electrodes coated with amorphous nanostructured TiO2, SiO2, and Al2O3 thin films grown by glancing angle deposition. The capacitive response and response times for each sensor were measured. The sensor utilizing TiO2 exhibited the largest change in capacitance, increasing exponentially from ~ 1 nF to ~ 1muF for an increase...
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