Search Results - sensors

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Addressing Co-Channel Interference with PRK-Based Scheduling for Predictable Link Reliability in Wireless Networked Sensing and Control
Reliable wireless communication is a basic enabler for networked sensing and control in many cyber-physical systems, yet co-channel interference is a major source of uncertainty in wireless communication. Integrating the protocol model's locality and the physical model's high fidelity, the physical ratio-K (PRK) interference model bridges the gap b...
Published: 5/25/2016   |   Inventor(s): Hongwei Zhang
Category(s): Communications, Computer Software, Electronics, Sensors, Software
In-Cylinder Cycle-by-Cycle NOx Measuring Technique in Spark Ignited Engines
Currently, there is no technique that determines the quantity of NOx present at the end of the combustion cycle in spark ignited engines. Existing technologies for measuring NOx in spark ignited engines are limited to slow response sensors placed in the engine exhaust. Wayne State University researchers have developed a novel technique to determ...
Published: 4/24/2012   |   Inventor(s): Naiem Henein, Fadi Estefanous, Tamer Badawy
Category(s): Electronics, Automotive & Transportation, Physical Sciences, Powertrain, Sensors
A Flexible Biocompatible Graphene Sensor for Point-of-care Diagnosis
A Wayne State University researcher has developed a novel method applying graphene to sensitive, high-throughput, multiplexing, for label-free and low-cost electrical biosensing applications. Graphene is a flat single layer of sp2 bonded carbon atoms that are packed in a honey comb lattice, and have shown to have exceptional electronic, mec...
Published: 11/23/2011   |   Inventor(s): Mark Ming-Cheng Cheng
Category(s): Materials, Diagnostics, Life Science, Other, MEMS, Nanomaterials, Physical Sciences, Sensors
Simultaneous Ion Sensing and Gas sampling in Combustion Engine Cylinders and Other Combustion Systems
Through the investigation of the sources of ionization in internal combustion engines, Wayne State University researchers have developed an invention to measure both ionization and gas sampling. Measurement of species such as NO, CO and CO2 produced in the combustion chamber throughout the engine cycle help to understand combustion behavior ...
Published: 7/19/2011   |   Inventor(s): Naiem Henein, Tamer Badawy, Fadi Estefanous
Category(s): Electronics, Automotive & Transportation, Physical Sciences, Powertrain, Sensors, Other
In-Cylinder Cycle-by-Cycle Soot Measuring Technique in Diesel Engines
Currently there is no device or technology to allow for onboard soot measurement in diesel engine vehicles. Wayne State University researchers have developed a technique which utilizes the ion current signal produced from an ion current sensor installed in the combustion chamber of each cylinder to determine the quantity of soot present in the cyli...
Published: 7/19/2011   |   Inventor(s): Fadi Estefanous, Tamer Badawy, Naiem Henein
Category(s): Physical Sciences, Automotive & Transportation, Powertrain, Energy & Environment, Sensors, Other
Autonomous Operation of Electronically Controlled Diesel Engines on a Multitude of Fuels Using Ion Current and Other Combustion Sensors
WSU researchers have developed a method to enable advanced diesel engines to operate properly on fuels of different chemical and physical properties. This technology will allow conventional diesel engines to precisely adjust the operating parameters to meet the production goals in fuel economy and emissions at a relatively low cost. With the incr...
Published: 7/18/2011   |   Inventor(s): Naiem Henein, Tamer Badawy
Category(s): Physical Sciences, Automotive & Transportation, Powertrain, Energy & Environment, Renewable Fuels, Sensors
Vibration Energy Harvesting Device Based on Air-Spaced Piezoelectric Cantilevers
WSU researchers have designed an energy harvesting device using an air-space piezoelectric cantilever instead of the piezoelectric bimorph. Current vibration energy harvesting devices typically employ piezoelectric bimorph or a bimorph with a shim in the middle. The use of the air-space cantilevers produces numerous advantages compared to conventio...
Published: 10/5/2010   |   Inventor(s): Yong Xu, Zhou Wang
Category(s): Acoustics, Electronics, MEMS, Physical Sciences, Sensors
Fuel Injector to Work as an Ionization Sensor and as an Injection Signal Detector in Electronically Controlled Fuel Injection Systems in Diesel and Direct Injection Gasoline Engines
Wayne State researchers have created an invention which uses one element in the engine, the fuel injector, to perform four tasks, injecting fuel, acting as an injection pulse detector, operating as a fuel injector malfunction detector and working as an ion sensor without modifying the fuel injector. Internal combustion engine control has become mo...
Published: 6/4/2010   |   Inventor(s): Fadi Estefanous
Category(s): Electronics, Automotive & Transportation, Physical Sciences, Powertrain, Sensors, Other
Broad Temperature Range MIS Hydrogen Sensors
WSU researchers have developed hydrogen sensors that differ from previous devices by employing aluminum nitride as an insulator in a metal insulator semiconductor structure. These new structures show a marked specificity for hydrogen under a wide range of conditions. Several prototype sensors with various applications have been tested results are a...
Published: 5/13/2010   |   Inventor(s): Flaminia Serina, Gregory Auner, Ka Yuen Simon Ng, Ratna Naik
Keywords(s): Device, Security
Category(s): Sensors, Physical Sciences, Automotive & Transportation, Other
High Gain Infrared Collector and Data Node
An infrared collector employs a concentrator formed of a plurality of spatially related gradient-indexed (GRIN) lenses and a photo detector interconnected by optical fibers. Since the GRIN lenses are arranged on a hemispherical shell the concentrator is relatively insensitive to the direction of the incoming infrared radiation. Optical fibers ...
Published: 5/13/2010   |   Inventor(s): Yang Zhao, Dan Hu
Keywords(s): Device, Optical
Category(s): Instrumentation, Optics & Photonics, Physical Sciences, Sensors
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