Ⅰ.Introduction With China’s accession to the World Trade Organization,international trade will develop consistently.As a result,civil and commercial disputes involving foreign elements are expected to increase treme...Ⅰ.Introduction With China’s accession to the World Trade Organization,international trade will develop consistently.As a result,civil and commercial disputes involving foreign elements are expected to increase tremendously.Whenever a court accepts an international civil展开更多
This study introduces a MEMS accelerometer equipped with an adaptive tuning system for an electrostatic anti-spring.As the input acceleration increases,the sensitivity of the adaptive MEMS accelerometer decreases to c...This study introduces a MEMS accelerometer equipped with an adaptive tuning system for an electrostatic anti-spring.As the input acceleration increases,the sensitivity of the adaptive MEMS accelerometer decreases to compensate for the measurement range.It leverages the benefits of both conventional open-and closed-loop accelerometer designs.Comprehensive theoretical analyses and experimental tests are conducted,showing consistency between theory and experimental results.In comparison to conventional MEMS accelerometer designs,this novel MEMS accelerometer demonstrates enhanced performance.With an actuation voltage of 15.4 V and under 0 g acceleration input,the sensitivity of the accelerometer improves from 1.28 V/g to 39.43 V/g,and the spring constant is reduced from 41.0 N/m to 1.38 N/m.The noise floor also decreases from 8628 ng/√Hz(at 100 Hz)to 279 ng/√Hz(at 100 Hz).The dynamic range enhances from 127 dB to 157 dB.Besides,a hybrid continuous-time interface is utilized to apply the actuation force on the sensing comb fingers.This approach not only simplifies the circuit design but also minimizes the required die area,power consumption.The combination of these features makes the novel MEMS accelerometer both highly sensitive and large measurement range,as a promising solution for various applications.展开更多
Chinese Optics is short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distribute...Chinese Optics is short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distributed abroad by the Optical Society(OSA).Submission of Papers Authors must submit online:http://www.col.org.cn.Electronic files of MS Word(recommended)and LaTeX are acceptable.Submission of a manuscript must be the original work of the author(s)and have not been published elsewhere or under展开更多
Apart from the new"Nine State Council Directives"which forcefully urged M&A and restructuring,multiple problems facing the electrolytic aluminum industry also would promote the acceleration of M&A an...Apart from the new"Nine State Council Directives"which forcefully urged M&A and restructuring,multiple problems facing the electrolytic aluminum industry also would promote the acceleration of M&A and restructuring.In the new"Nine State Council Directives"which has just been released,"encouraging marketized M&A and restructuring"展开更多
文摘Ⅰ.Introduction With China’s accession to the World Trade Organization,international trade will develop consistently.As a result,civil and commercial disputes involving foreign elements are expected to increase tremendously.Whenever a court accepts an international civil
基金funded by The Science and Technology Development Fund,Macao SAR(FDCT),004/2023/SKLNational Natural Science Foundation of China(No.42204182)Knowledge Innovation Program of Wuhan-Basic Research(No.2023010201010042).
文摘This study introduces a MEMS accelerometer equipped with an adaptive tuning system for an electrostatic anti-spring.As the input acceleration increases,the sensitivity of the adaptive MEMS accelerometer decreases to compensate for the measurement range.It leverages the benefits of both conventional open-and closed-loop accelerometer designs.Comprehensive theoretical analyses and experimental tests are conducted,showing consistency between theory and experimental results.In comparison to conventional MEMS accelerometer designs,this novel MEMS accelerometer demonstrates enhanced performance.With an actuation voltage of 15.4 V and under 0 g acceleration input,the sensitivity of the accelerometer improves from 1.28 V/g to 39.43 V/g,and the spring constant is reduced from 41.0 N/m to 1.38 N/m.The noise floor also decreases from 8628 ng/√Hz(at 100 Hz)to 279 ng/√Hz(at 100 Hz).The dynamic range enhances from 127 dB to 157 dB.Besides,a hybrid continuous-time interface is utilized to apply the actuation force on the sensing comb fingers.This approach not only simplifies the circuit design but also minimizes the required die area,power consumption.The combination of these features makes the novel MEMS accelerometer both highly sensitive and large measurement range,as a promising solution for various applications.
文摘Chinese Optics is short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distributed abroad by the Optical Society(OSA).Submission of Papers Authors must submit online:http://www.col.org.cn.Electronic files of MS Word(recommended)and LaTeX are acceptable.Submission of a manuscript must be the original work of the author(s)and have not been published elsewhere or under
文摘Apart from the new"Nine State Council Directives"which forcefully urged M&A and restructuring,multiple problems facing the electrolytic aluminum industry also would promote the acceleration of M&A and restructuring.In the new"Nine State Council Directives"which has just been released,"encouraging marketized M&A and restructuring"
