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Predictionhigh -4 -3 -2 -1 0 1 2 100 200 300 400 ln ln ( 1 / ( 1 - P f ) ) Failure Stress (MPa) Probability of Failure, P f , (%) 99.9 99.0 90.0 50.0 20.0 10.0 2.0 5.0 Initial 500 1 week 1 month1 year Fatigue of Metal Oxides Can Limit Sensor Function and Capability Prediction of High Temperature Gas Sensors Metal Oxide Mechanical Properties as Life Limiters of Sensors New and next-generatio…

: Metal, Sensor, Ceramic...

Developmentcatalytically Development of Catalytically Selective Electrodes for NOx and NH3 Sensing Background Recent efforts to improve vehicle fuel economy as well as to reduce emissions have demonstrated the need for a NOx sensor. The NOx sensor is an enabling technology which will promote the advancement of both lean burn gasoline engines and diesel engines by permitting improved engine contr…

Sensor-Basedtagging Sensor-Based Tagging and Tracking System Next-Generation Time, Space, and Position Information System Executive Summary ORNL is conferring with the U.S. Army test and training community on the development of a next-generation time, space, and position information (TSPI) system capable of identifying (tagging) assets and tracking their movements along both the linear and rotat…

MEMS-Bio-Chemicaltransducer MEMS Bio-Chemical Transducer Calorimetric MEMS sensor array platform In response to the growing interest in the areas of non-homogeneous chemical reactions and microsensors, we propose a revolutionary approach to signal transduction in which we not only sense chemical reactions with a fine-mesh pixilated array (200 m pixel spacing), but also control the local reaction…

Applicationspecific 144 Preamplifiers, 144 Shaping Amplifiers, 144 Time2Amplitude Converters, 288 Analog Memories and 288 Analog to Digital Converters Application Specific Electronics for Sensor Systems Enabling the Real-World Use of Sensors Highly Integrated Electronics Enable Use of Novel Sensor Technologies Many novel sensor technologies have been conceived and implemented at Oak Ridge Natio…

Nextgeneration August 9, 2002 Next-Generation Tagging and Tracking System The Department of Energy's (DOE's) Oak Ridge National Laboratory (ORNL) and a strategic partner are working to develop the next generation of tagging and tracking systems for both defense and commercial applications. The intent is to address a significant need that currently exists in the training and logistics areas to …

Forcetorque Technology Need High capacity multi-axis force/torque sensors are needed to quantify robotic machines interactions with their environment as well as for applications where determination of payload, center of gravity, and contact forces are required or when large impact loads can occur. Existing sensors suffer from several deficiencies: Small thermal gradients lead to large error…

: Stability, Sensor, Thermal...

Fig 1: Calorimeter Sensor Membranes Catalyst Silicon Die Catalytic and Catalytic Differential Calorimeter Gas Sensors Fabrication and Evaluation Introduction The Environmental Protection Agency and California Air Resources Board mandated on-board monitoring of the exhaust gas conversion efficiency of catalytic converters under its On-Board Diagnostic phase 2 (OBD-II) plan. A variety of exhaust ga…

Hydrogensensors A wheatstone bridge hydrogen sensor on ceramic substrate Low-cost, Thick-film Hydrogen Sensors Patented device for fuel cell, hydrogen storage and process monitoring Palladium Sensors Ready for Commercial Development. In response to the need for highly reliable, low-cost hydrogen sensors, the Oak Ridge National Laboratory (ORNL) is developing an integrated hydrogen measurement…

: Fuel Cell, Sensor, Hydrogen...

Beam anchor Coating Polysilicon beam Bottom plate Substrate Microfabricated Cantilever Micro-Sensor Array Platform Low-cost, very low-power wireless sensor array platform Low cost sensors are critical need and enabling technology in many sectors Numerous national studies and working groups have identified low-cost, very low-power sensors as a critical technology for increasing energy efficiency, …

: Platform, Sensor, Cantilever...
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