检索结果-内蒙古大学图书馆

Established conversions for hybrid entangled states assisted by error-predicted parity-discriminated devices

Chinese Physics B 2025年第1期34卷 72-78页

作者： Fang-Fang Du Zhi-Guo Fan Xue-Mei Ren Ming Ma Wen-Yao Liu Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China

Hybrid entangled states are crucial in quantum physics,offering significant benefits for hybrid quantum communication and quantum computation,and then the conversion of hybrid entangled states is equally *** paper presents two novel schemes,that is,one converts the two-qubit hybrid Knill–Laflamme–Milburn(KLM)entangled state into Bell states and the other one transforms the three-qubit hybrid KLM state into Greenberger–Horne–Zeilinger(GHZ)states assisted by error-predicted and parity-discriminated ***,the integration of single photon detectors into the parity-discriminated device enhances predictive capabilities,mitigates potential failures,and facilitates seamless interaction between the nitrogen-vacancy center and photons,so the two protocols operate in an error-predicted way,improving the experimental ***,our schemes demonstrate robust fidelities(close to 1)and efficiencies,indicating their feasibility with existing technology.

关键词： quantum information processing quantum entanglement quantum communication entanglement conversion

来源：评论

学校读者我要写书评

暂无评论

Hybrid electromechanical properties of hetero-doped and homogeneously bonded dual-mode pressure sensor for indoor body area network node

引用

science China(Information sciences) 2024年第1期67卷 240-253页

作者： Junbin YU Shuai XIAN Jinbiao MU Min WANG Yin WANG Xiaojuan HOU Le ZHANG Jian HE Jiliang MU Xiujian CHOU Science and Technology on Electronic Test and Measurement Laboratory North University of China Sichuan Aerospace Fenghuo Servo Control Technology Corporation

Pressure sensors are considerably important for continuous monitoring of human movement and the surrounding environment to construct a caregiving system for the elderly living *** challenge for pressure sensors that still remains is combining self-driven,comfort,and ***,an all-in-one conformal pressure sensor(ACPS) based on a homogeneous integrated triboelectric-piezoelectric hybrid sensor is *** ACPS has dual-mode sensing properties due to coupling triboelectrification and piezoelectric effect ensuring a stable response to various external ***-coated glass microspheres and polyacrylonitrile were uniformly filleted into the silicone rubber substrate using a hetero-doping method to create a stretchable electrode layer with flexible conformal characteristics and a piezoelectric layer with excellent piezoelectric properties,***,the triboelectric layer was fabricated using the same silicone rubber,allowing ACPS to be homogeneously bonded into an all-in-one structure with reliable *** allowed various functional layers to have outstanding interface characteristics and thus improve the electrical transmission *** developed ACPS had outstanding sensitivity(1.04 V/10～4Pa),high linearity(about 0.984),a wide measurement range(10–700 k Pa),and can accurately and continuously distinguish multiple ***,using a homemade signal processing circuit,ACPSs can be deployed in the human body and the room as indoor body area network *** successfully applied to the remote tracking of daily dynamic home life and the remote operation of small electrical equipment,these ACPSs can achieve real-time caregiving for the elderly living *** an application area desperately needed by society,this study envisions a caregiving system for the elderly living alone without violating personal privacy.

关键词： dual-mode pressure sensor homogeneous bonding all-in-one structure indoor body area network node elderly caregiving microsystem

来源：评论

学校读者我要写书评

暂无评论

Impact attenuation mechanism of single/double-layer potting structures of MEMS devices under continuous double-pulse impact

引用

Defence technology 2025年 48卷 104-114页

作者： Guo, Hao'nan Shi, Yunbo Zhao, Rui Chen, Yu'nan Zhang, Peng Chen, Liang Guo, Tao Science and Technology on Electronic Test & Measurement Laboratory North University of China Taiyuan030051 China

High-overload shocks are very likely to cause damage to the microstructure of MEMS devices, especially the continuous multiple high-overload shocks generated by the penetration of the multilayer target environment pose more stringent challenges to its protective structure. In this study, the kinetic response model of the protective structure under single-pulse and continuous double-pulse impact is established, and a continuous double-pulse high overload impact test impact platform based on the sleeve-type bullet is constructed, and the protective performance of the multi-layer structure under multi-pulse is analyzed based on the acceleration decay ratio, and the results show that the protective performance of the structure has a positive correlation with its thickness, and it is not sensitive to the change of the load of the first impact;the first impact under double-pulse impact will cause damage to the microstructure through the superposition of the second impact. The first impact under double-pulse impact will cause an increase in the overload amplitude of the second impact through superposition;compared with the single-layer structure, the acceleration attenuation ratio of the double-layer structure can be increased by up to 26.13%, among which the epoxy-polyurethane combination has the best protection performance, with an acceleration attenuation ratio of up to 44.68%. This work provides a robust theoretical foundation and experimental basis for the reliable operation of MEMS devices, as well as for the design of protective structures in extreme environments. © 2025 China Ordnance Society

关键词： MEMS

来源：评论

学校读者我要写书评

暂无评论

Synergistic piezoelectricity enhanced BaTiO_(3)/polyacrylonitrile elastomer-based highly sensitive pressure sensor for intelligent sensing and posture recognition applications

引用

Nano Research 2023年第4期16卷 5490-5502页

作者： Junbin Yu Shuai Xian Zhenpeng Zhang Xiaojuan Hou Jian He Jiliang Mu Wenping Geng Xiaojun Qiao Le Zhang Xiujian Chou Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China

Designing stretchable and skin-conformal self-powered sensors for intelligent sensing and posture recognition is ***,based on a multi-force mixing and vulcanization process,as well as synergistically piezoelectricity of BaTiO_(3)and polyacrylonitrile,an all-in-one,stretchable,and self-powered elastomer-based piezo-pressure sensor(ASPS)with high sensitivity is *** ASPS presents excellent sensitivity(0.93 V/104 Pa of voltage and 4.92 nA/104 Pa of current at a pressure of 10-200 kPa)and high durability(over 10,000 cycles).Moreover,the ASPS exhibits a wide measurement range,good linearity,rapid response time,and stable frequency *** components were fabricated using silicone,affording satisfactory skinconformality for sensing *** cooperation with a homemade circuit and artificial intelligence algorithm,an information processing strategy was proposed to realize intelligent sensing and *** home-made circuit achieves the acquisition and wireless transmission of ASPS signals(transmission distance up to 50 m),and the algorithm realizes the classification and identification of ASPS signals(accuracy up to 99.5%).This study proposes not only a novel fabrication method for developing self-powered sensors,but also a new information processing strategy for intelligent sensing and recognition,which offers significant application potential in human-machine interaction,physiological analysis,and medical research.

关键词： flexible pressure sensor synergistic piezoelectricity all-in-one structure high sensitivity intelligent sensing and recognition

来源：评论

学校读者我要写书评

暂无评论

A High-temperature Strain Dual Reference Sensor with a Self-compensating Structure

引用

IEEE Sensors Journal 2025年第11期25卷 19386-19393页

作者： Huang, Junyi Wang, Yu Dong, Helei Tan, Qiulin North University of China Science and Technology on Electronic Test and Measurement Laboratory Taiyuan030051 China North University of China State Key Laboratory of Dynamic Measurement Technology Taiyuan030051 China

To address the challenges of high-temperature strain detection in aero-engines and similar equipment, this study employs screen printing technology to fabricate a self-compensating, temperature-integrated strain sensor capable of operating in extreme thermal environments. The sensor utilizes indium tin oxide (ITO) and platinum as sensitive materials and designs a strain gauge structure with a compensation function. This design enhances the flexibility in selecting compensation materials without compromising strain sensing performance. The sensor's performance was evaluated using a high-temperature muffle furnace and a strain testing system. Results demonstrate its excellent temperature and strain measurement capabilities. At 1250°C, the sensor exhibits an average temperature coefficient of resistance of -388.74 ppm/°C and a resistance drift rate of only 2.64 × 10-5/h over an 8-hour period, indicating its robust stability at high temperatures. Moreover, the sensor shows high sensitivity, accuracy, and excellent linearity with an average gauge factor of -17.8 in a strain characteristic test at 800°C. In the high-temperature measurement experiments, the thermocouple test results were analyzed using a high order polynomial fit, resulting in an average Seebeck coefficient of 47.9 μv/°C for the sensor. The sensor's fabrication process is straightforward and efficient, coupled with its self-compensation characteristics, making it a promising candidate for high-temperature strain sensing applications. © 2001-2012 IEEE.

关键词： Thermocouples

来源：评论

学校读者我要写书评

暂无评论

An enhanced flexible triboelectric tactile sensor for material classification and roughness recognition

引用

science China(Technological sciences) 2025年第4期68卷 94-104页

作者： Jingchao YUAN Jian HE Junbin YU Shuai SHI Yanxiang CHANG Xiujian CHOU Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan030051China Shanxi Key Laboratory of Ferroelectric Physical Micro-nano Devices and Systems North University of ChinaTaiyuan030051China

Tactile sensors are one of the core components for intelligent robots to realize human-like tactile sensing *** the application scenarios of material classification and roughness recognition,an enhanced flexible triboelectric tactile sensor(FTTS)is proposed in this *** FTTS is prepared based on a single-electrode triboelectric nanogenerator(SETENG),which generates the corresponding electrical signals by coming in contact with *** enhance the properties of the SE-TENG,the synergistic enhancement effect on the electrical output of the SE-TENG was explored by controlling the addition ratio of MXene and Carboxylated cellulose nanofibers(CNF-C).The charge-trapping mechanism of the chargetrapping layer was analyzed,and the effects of the type and thickness of the charge-trapping layer on the performance of the FTTS were systematically *** and simple fabricated braided microstructures were prepared using the template method,which showed the optimum capability in terms of self-cleaning and electrical output *** these improvements,the FTTS showed a voltage sensitivity of 2.88 V/10^(4)Pa in the pressure response range of 10-400 kPa,a linearity of 0.993,and a linear trend in the fitting *** the same time,the FTTS has a stable response frequency,fast response time,and extreme cycling stability(over 10000 cycles).In addition,in terms of roughness recognition,the FTTS can accurately recognize samples with different surface *** terms of material classification,the accuracy of classifying 11materials with the visual geometry group(VGG)network reaches 96.08%.Based on these findings,FTTS-based tactile sensors offer diverse options in the future direction of electronic skin and tactile sensing.

关键词： single-electrode triboelectric nanogenerator tactile sensor self-cleaning VGG network material classification roughness recognition

来源：评论

学校读者我要写书评

暂无评论

A high-performance electromagnetic energy harvester for scavenging ultra-low frequency vibration energy of human foot movement

引用

science China(Technological sciences) 2024年第5期67卷 1391-1400页

作者： HU JiaJun QIAN Shuo WU Hui HU DongXu NIU LiXin BI XiaoXue ZHANG Jie HOU XiaoJuan GENG WenPing MU JiLiang HE Jian CHOU XiuJian Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan030051China School of Software North University of ChinaTaiyuan030051China

In our daily lives,low-frequency kinetic energy primarily manifests as ***,effective harnessing of lowfrequency kinetic energy remains a formidable *** paper proposes a rope-driven rotor that rotates around an axis and consists of an ultra-high-molecular-weight polyethylene(UHMWPE)wire wrapped around a metal *** rotor can convert ultra-low frequency vibration/linear motion into rapid rotation by pressing the top at low frequencies and driving the rope for a quick *** harvester can generate up to 36.25 m W power using a 0.1-mm-diameter UHMWPE wire as the rotor when periodically pressed down to 20 mm at a frequency of 1 Hz.A simple power generation floor is assembled,generating 28.58-m W power with a matching load at a frequency of 1.5 ***,the harvester can increase the charging voltage of a 0.47-F supercapacitor from 0 to 6.8 V within 10 *** addition,the harvester can harvest energy through a light finger press motion,and the energy obtained can also support the continuous operation of multiple electronic devices *** study introduces an effective method for harvesting ultra-low frequency energy and has great prospects in the field of power generation floor and human movement energy harvesting.

关键词： electromagnetic energy harvester rope-shaft coupling structure human motion ultra-low frequency

来源：评论

学校读者我要写书评

暂无评论

A high-performance hybrid wind energy harvester based on a bidirectional acceleration structure

引用

science China(Technological sciences) 2024年第12期67卷 3766-3776页

作者： HU DongXu QIAN Shuo HOU XiaoJuan DUAN ZhiGang NIU LiXin WU Hui LIU JianJun ZHANG Jie GENG WenPing MU JiLiang HE Jian CHOU XiuJian Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China School of Software North University of ChinaTaiyuan 030051China

Given the intensifying scarcity of non-renewable energy sources,wind power is garnering importance across various ***,the prevalent wind power generation technologies have different problems,such as small output and low conversion ***,in this study,we propose a high-performance hybrid wind energy generator with a bidirectional acceleration *** on a reversing gear,the magnet-coil rotor pair moves in a circular motion at equal speeds and in opposite directions,resulting in twice the output performance of a conventional generator and improving the conversion efficiency up to38.4%.The optimized wind turbine structure and the soft contact of the triboelectric material allow the generator to start functioning at low wind speeds of 3 m/***,it can detect wind speeds ranging from 3 to 15 m/s with a linearity of up to *** a wind speed of 6 m/s,the generator's output power reaches 165.76 m W,which can transmit the data of the light sensor to a computer via Bluetooth for real-time display and also power small electronic devices such as thermo-hygrometers,which demonstrates a wide range of applications in the field of sustainable monitoring.

关键词： wind energy harvesting bidirectional acceleration structure hybrid generator wind speed detection

来源：评论

学校读者我要写书评

暂无评论

Flexible multilayer MEMS coils and their application in energy harvesters

引用

science China(Technological sciences) 2024年第4期67卷 1282-1293页

作者： ZHANG Jie HOU XiaoJuan QIAN Shuo BI XiaoXue HU DongXu LIU JianJun GENG WenPing MU JiLiang HE Jian CHOU XiuJian Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China School of Software North University of ChinaTaiyuan 030051China

Electromagnetic vibration energy harvesters are promising for the power supply of wireless sensor nodes,small electronic devices,and wearable *** electromagnetic harvesters usually increase output by increasing the size of coils and magnets,limiting the improvement of energy conversion efficiency and power *** this study,multilayer microelectromechanical system(MEMS)coils were prepared using flexible electronics,and their high integration performance in arbitrary space was utilized to greatly improve the utilization of the space magnetic field by the electromagnetic *** core magnet of the generator was magnetically balanced to achieve levitation,which improved the sensitivity and reduced fatigue damage compared with traditional spring *** wound coils on the top and bottom of the magnet and the flexible coils on the sides worked together to improve the energy efficiency and output of the *** output performance of the device with different number distributions was simulated using mathematical models to obtain the optimal structural *** results show that by introducing flexible multilayer MEMS coils on the side surface of the energy harvester,the open-circuit voltage of the energy generators increased from 7 to 10 V by more than 43%.Flexible multilayer MEMS coils can enhance energy conversion rates and possess compact dimensions,making them suitable for integration onto complex *** the vibration energy harvesting system testing,the maximum peak power of the harvester was 7.1 m W at an acceleration of1 g and a resonant frequency of 11 Hz with a resistor of 3.5 kΩinternal ***,a 470μF capacitor can be charged to 3.5 V within 10 s to drive a hygrothermograph to work for more than 80 s and can supply a light bulb *** strategy shows the great potential of vibration-energy-driven electromagnetic generators for powering small electronics in limited spaces.

关键词： electromagnetic harvester mechanical energy harvesting multilayer MEMS coils magnetic levitation overall space magnetic field flexible planar coils

来源：评论

学校读者我要写书评

暂无评论

A high-sensitivity flexible bionic tentacle sensor for multidimensional force sensing and autonomous obstacle avoidance applications

引用

Microsystems & Nanoengineering 2024年第5期10卷 265-276页

作者： Xinyu Liu Kunru Li Shuo Qian Lixin Niu Wei Chen Hui Wu Xiaoguang Song Jie Zhang Xiaoxue Bi Junbin Yu Xiaojuan Hou Jian He Xiujian Chou Science and Technology on Electronic Test and Measurement Laboratory North University of China030051 TaiyuanChina School of Software North University of China030051 TaiyuanChina

Bionic tentacle sensors are important in various fields,including obstacle avoidance,human-machine interfaces,and soft ***,most traditional tentacle sensors are based on rigid substrates,resulting in diffculty in detecting multidirectional forces originating from the external environment,which limits their application in complex ***,we proposed a high-sensitivity flexible bionic tentacle sensors(FBTSs).Specifically,the FBTS featured an ultrahigh sensitivity of 37.6 N-1 and an ultralow detection limit of 2.4 mN,which benefited from the design of a whisker-like signal amplifier and crossbeam ***,the FBTS exhibited favorable linearity(R^(2)=0.98)and remarkable durability(more than 5000 cycles).This was determined according to the improvement in the uniformity of the sensing layer through a high-shear dispersion *** addition,the FBTS could accurately distinguish the direction of external stimuli,resulting in the FBTS achieving roughness recognition,wind speed detection and autonomous obstacle *** particular,the ability of autonomous obstacle avoidance was suitably demonstrated by leading a bionic rat through a maze with the ***,the proposed FBTS could be widely applied in tactile sensing,orientation perception,and obstacle avoidance.

关键词： obstacle autonomous durability

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：