Closed-loop Electromechanical Sigma-delta Microgravity Accelerometers PDF Download
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Author: Haluk Kulah
Publisher:
ISBN:
Category :
Languages : en
Pages : 328
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Author: Haluk Kulah
Publisher:
ISBN:
Category :
Languages : en
Pages : 328
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Book Description
Author: Babak Vakili-Amini
Publisher:
ISBN:
Category : Accelerometers
Languages : en
Pages :
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Book Description
This dissertation presents the design and development of a mixed-signal low noise second-order à integrated circuit (IC) for the open-loop and closed-loop operation of integrated capacitive micro- & nano-gravity accelerometers. The micromechanical accelerometers are fabricated in thick (>100 m) silicon-on-insulator (SOI) substrates. The IC provides the 1-bit digital output stream and has the versatility of interfacing sensors with different sensitivities while maintaining minimum power consumption (5 mW) and maximum dynamic range (90 dB). A fully-differential sampled-data scheme is deployed with the ability of low-frequency noise reduction through the use of correlated double sampling (CDS) scheme. In this work, the measured resolution of the closed-loop CMOS-SOI accelerometer system, in the presence of high background accelerations, is in the micro-g (g: gravity) range. In this design, a second-order SC à modulator is cascaded with the accelerometer and the front-end amplifier. The accelerometer operates in air and is designed for non-peaking response with a BW-3dB of 500 Hz. A 22 dB improvement in noise and hence dynamic range is achieved with a sampling clock of 40 kHz corresponding to a low oversampling ratio (OSR) of 40. The interface IC consumed a current of 1.5 mA from a supply of 3 V.
Author: Giuseppe Ferri
Publisher: MDPI
ISBN: 3038973769
Category : Computers
Languages : en
Pages : 171
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This book is a printed edition of the Special Issue "Interface Circuits for Microsensor Integrated Systems" that was published in Micromachines
Author: Jaume Verd
Publisher: MDPI
ISBN: 3039210688
Category : Technology & Engineering
Languages : en
Pages : 166
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Book Description
Micro and nano-electro-mechanical system (M/NEMS) devices constitute key technological building blocks to enable increased additional functionalities within Integrated Circuits (ICs) in the More-Than-Moore era, as described in the International Technology Roadmap for Semiconductors. The CMOS ICs and M/NEMS dies can be combined in the same package (SiP), or integrated within a single chip (SoC). In the SoC approach the M/NEMS devices are monolithically integrated together with CMOS circuitry allowing the development of compact and low-cost CMOS-M/NEMS devices for multiple applications (physical sensors, chemical sensors, biosensors, actuators, energy actuators, filters, mechanical relays, and others). On-chip CMOS electronics integration can overcome limitations related to the extremely low-level signals in sub-micrometer and nanometer scale electromechanical transducers enabling novel breakthrough applications. This Special Issue aims to gather high quality research contributions dealing with MEMS and NEMS devices monolithically integrated with CMOS, independently of the final application and fabrication approach adopted (MEMS-first, interleaved MEMS, MEMS-last or others).]
![High-order [sigma Delta] Interface for Micromachined Inertial Sensors PDF](https://books.google.com/books/content/images/frontcover/Ph1PAQAAMAAJ?fife=w80-h100)
Author: Vladimir Plamenov Petkov
Publisher:
ISBN:
Category :
Languages : en
Pages : 216
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Author:
Publisher:
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Category : Electric circuits
Languages : en
Pages : 600
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Author: Navid Yazdi
Publisher:
ISBN:
Category : Accelerometers
Languages : en
Pages : 320
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Category : Dissertation abstracts
Languages : en
Pages : 776
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Author:
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ISBN:
Category : Actuators
Languages : en
Pages : 1020
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Author: Robert C. Dempsey
Publisher: Government Printing Office
ISBN: 9780160943898
Category : Government publications
Languages : en
Pages : 440
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Book Description
Looks at the operations of the International Space Station from the perspective of the Houston flight control team, under the leadership of NASA's flight directors, who authored the book. The book provides insight into the vast amount of time and energy that these teams devote to the development, planning and integration of a mission before it is executed. The passion and attention to detail of the flight control team members, who are always ready to step up when things do not go well, is a hallmark of NASA human spaceflight operations. With tremendous support from the ISS program office and engineering community, the flight control team has made the International Space Station and the programs before it a success.
