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Design and Optimization of a MEMS-Based Piezore...
79,90 € *
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This work focuses on the design improvement of a tri-axial piezoresistive accelerometer specifically designed for head injuries monitoring where medium-G impacts are common, for example in sports such as motorsport and American football. Given the particular biomedical and biomechanical application the device requires the highest sensitivity achievable with a single proof mass approach, where basically all three axes of measurements are detected with a single mass suspended by surrounding beams. Moreover, a very low error, below 1%, is expected for these type of applications where accuracy is paramount. The optimization method used is based on the progressive increment of the sensor mass moment of inertia (MMI) in all axes. The theoretical hypothesis to confirm is that an increment of MMI of the device proof mass would determine an increment of device sensitivity with a simultaneous reduction of cross-talk in the particular axis under study. The work numerically demonstrates the hypothesis validity by simulating the optimized device mechanical structures with Finite Element Method. A final optimal shape is selected as the best possible output of the optimization process.

Anbieter: Dodax
Stand: 27.01.2020
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High-sensitivity, Low-noise Multi-axis Capaciti...
68,00 € *
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High performance, micro-g resolution, small size, low cost, low power accelerometers are needed in many applications such as inertial navigation, Unmanned Aerial Vehicles (UAVs), and GPS augmentation. Several sensing methods have been used, including piezoresistive/electric, resonant, tunneling, and capacitive techniques. Capacitive sensing has several advantages in terms of high sensitivity, stable DC-characteristics, low power dissipation, low temperature sensitivity, and low noise floor. This research work demonstrates full functionality of high- sensitivity, low-noise capacitive multi-axis accelerometers. In order to achieve micro-g resolution, two different structures have been utilized: a Silicon-On-Glass (SOG) accelerometer, and an all-silicon accelerometer. A monolithic fabrication technique for Post-CMOS MEMS is also developed. Finally, a 3-axis single-chip accelerometer is presented. The 3-axis accelerometer shows 3pF/g sensitivity and sub- g/rtHz mechanical noise floor. The 3-axis accelerometer with the readout circuit provides noise floor of 1.6 g/rtHz and 1.1 g/rtHz for in-plane and out-of- plane devices, respectively.

Anbieter: Dodax
Stand: 27.01.2020
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High-sensitivity, Low-noise Multi-axis Capaciti...
70,00 € *
ggf. zzgl. Versand

High performance, micro-g resolution, small size, low cost, low power accelerometers are needed in many applications such as inertial navigation, Unmanned Aerial Vehicles (UAVs), and GPS augmentation. Several sensing methods have been used, including piezoresistive/electric, resonant, tunneling, and capacitive techniques. Capacitive sensing has several advantages in terms of high sensitivity, stable DC-characteristics, low power dissipation, low temperature sensitivity, and low noise floor. This research work demonstrates full functionality of high- sensitivity, low-noise capacitive multi-axis accelerometers. In order to achieve micro-g resolution, two different structures have been utilized: a Silicon-On-Glass (SOG) accelerometer, and an all-silicon accelerometer. A monolithic fabrication technique for Post-CMOS MEMS is also developed. Finally, a 3-axis single-chip accelerometer is presented. The 3-axis accelerometer shows 3pF/g sensitivity and sub- g/rtHz mechanical noise floor. The 3-axis accelerometer with the readout circuit provides noise floor of 1.6 g/rtHz and 1.1 g/rtHz for in-plane and out-of- plane devices, respectively.

Anbieter: Dodax AT
Stand: 27.01.2020
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Tran-Duc, T: Design and Fabrication of a 3-DOF ...
59,00 € *
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Erscheinungsdatum: 08/2012, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: Design and Fabrication of a 3-DOF Piezoresistive Micro Accelerometer, Titelzusatz: A Completed Work from Design, Simulation, Fabrication to Performance Analysis, Autor: Tran-Duc, Tan, Verlag: LAP Lambert Academic Publishing, Sprache: Englisch, Rubrik: Elektronik // Elektrotechnik, Nachrichtentechnik, Seiten: 128, Informationen: Paperback, Gewicht: 207 gr, Verkäufer: averdo

Anbieter: averdo
Stand: 27.01.2020
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Design and Fabrication of a 3-DOF Piezoresistiv...
60,70 € *
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This book presented a hierarchical MEMS design synthesis and optimization process developed for a specific structure of accelerometer. The design synthesis methodology exploits the fast and accurate simulation of the SUGAR tool (based on modified modal analysis) along with the full simulation capability of ANSYS (based on the finite element method). During the course of design, the modified nodal analysis and the finite element methods were combined in optimizing the sensor structure. After fabrication process, the utilizing of Allan variance method is also very useful to determine errors caused by both of the intrinsic sensor s noises and interface circuit s. Another important contribution of this book is that comprehensive analysis considering the impact of many parameters, such as the doping concentration, temperature, noises, and power consumption on optimization of the sensitivity and resolution has been proposed in order to enhance sensitivity and resolution of the accelerometer.

Anbieter: Dodax AT
Stand: 27.01.2020
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Design and Fabrication of a 3-DOF Piezoresistiv...
59,00 € *
ggf. zzgl. Versand

This book presented a hierarchical MEMS design synthesis and optimization process developed for a specific structure of accelerometer. The design synthesis methodology exploits the fast and accurate simulation of the SUGAR tool (based on modified modal analysis) along with the full simulation capability of ANSYS (based on the finite element method). During the course of design, the modified nodal analysis and the finite element methods were combined in optimizing the sensor structure. After fabrication process, the utilizing of Allan variance method is also very useful to determine errors caused by both of the intrinsic sensor s noises and interface circuit s. Another important contribution of this book is that comprehensive analysis considering the impact of many parameters, such as the doping concentration, temperature, noises, and power consumption on optimization of the sensitivity and resolution has been proposed in order to enhance sensitivity and resolution of the accelerometer.

Anbieter: Dodax
Stand: 27.01.2020
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Design and Optimization of a MEMS-Based Piezore...
79,90 € *
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Design and Optimization of a MEMS-Based Piezoresistive Accelerometer ab 79.9 € als Taschenbuch: Computational Analysis of a MEMS-Based Accelerometer with Silicon Nanowire Piezoresistors for Head Injuries Monitoring. Aus dem Bereich: Bücher, Wissenschaft, Technik,

Anbieter: hugendubel
Stand: 27.01.2020
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Design and Fabrication of a 3-DOF Piezoresistiv...
59,00 € *
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Design and Fabrication of a 3-DOF Piezoresistive Micro Accelerometer ab 59 € als Taschenbuch: A Completed Work from Design Simulation Fabrication to Performance Analysis. Aus dem Bereich: Bücher, Wissenschaft, Technik,

Anbieter: hugendubel
Stand: 27.01.2020
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Design and optimization of a novel tri-axial mi...
49,99 € *
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Design and optimization of a novel tri-axial miniature ear-plug piezoresistive accelerometer with nanoscale piezoresistors ab 49.99 € als Taschenbuch: . Aus dem Bereich: Bücher, Kunst & Musik,

Anbieter: hugendubel
Stand: 27.01.2020
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