检索结果-内蒙古大学图书馆

16th Pacific Rim Conference on Lasers and Electro-Optics, CLEO-PR 2024

作者： Zhang, Jinxu Shi, Liheng Gu, Yingying Zhang, Donglai Yin, Lu Wu, Guanhao Tsinghua University State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instrument Beijing100084 China Beijing Institute of Control Engineering Space Optoelectronic Measurement and Perception Lab. Beijing100190 China China Academy of Space Technology National Key Laboratory of Space Intelligent Control Beijing100094 China

We present a one-shot 3D spectral interferometry technique using a digital micromirror device. By encoding the distribution of the spatial light field, this approach enables 3D imaging of step structures within 27 ms.... 详细信息

ISBN: (纸本)9798350372076

关键词： Interferometry

来源：评论

学校读者我要写书评

暂无评论

A Combination System of a Thin Atomic Force Microscope and an Upright Raman Microscope for Position-Controllab.e Surface-Enhanced Raman Scattering

引用

Microscopy and Microanalysis 2023年第1期29卷 180-188页

作者： Lu, Nianhang Wang, Yilin Xiao, Shasha Zhang, Rui Xue, Tao Hu, Xiaodong Wu, Sen State Key Lab of Precision Measurement Technology and Instruments Tianjin University Tianjin 300072 China Analysis and Testing Centre Tianjin University Tianjin 300072 China

In this study, we propose a novel atomic force microscope (AFM) combined with a Raman microscope for fabricating position-controllab.e surface-enhanced Raman scattering substrates. The head of the AFM is designed with an effective thickness of 7.3 mm and reserved an open space above the cantilever probe for the objective with high NA. Benefitti from the thin head, the homemade AFM can be easily integrated with the upright Raman microscope. The Raman microscope and AFM share the same XY piezo scanner and allow to a complimentary mapping of Raman mapping images. The new combination system is equipped with automated nano-manipulation functions which help to precisely assemble one-dimensional (1D) materials such as noble metal nanowires into the desired patterns. The experimental results demonstrate that our developed AFM-Raman system can be applied to fabricating and investigating position-controllab.e SERS substrates. The optical geometry of this new system also shows potential in other combinational applications. © 2023 The Author(s).

关键词： AFM AFM-Raman nano-manipulation pattern assembly SERS

来源：评论

学校读者我要写书评

暂无评论

Controllab.y Constructing Gold Nanostructures on Electrodes Through Growth of Zinc Oxide Nanorods and Two-Step Electroplating 22

Controllably Constructing Gold Nanostructures on Electrodes ...

引用

22nd International Conference on Solid-state Sensors, Actuators and Microsystems, Transducers 2023

作者： Zhang, Shengsen Chen, Shengjie Yu, Kunru Zhu, Rong Tsinghua University State Key Laboratory Of Precision Measurement Technology And Instruments Department Of Precision Instrument Beijing China Mems Lab Department Of Precision Instrument Tsinghua University Beijing100084 China

ISBN: (纸本)9784886864352

In this paper, we propose a new fabrication approach for controllab.y constructing gold composite nanostructures on electrodes. The approach involves an electro-hydrothermal growth of ZnO nanorods incorporating with two-step gold electroplating. The gold nanostructures constructed in the first-step electroplating are spherical nanoparticles with diameters of hundreds of nanometers, while the gold nanostructures constructed on the nanoparticles in the second-step electroplating are tinier with tens of nanometers and have diverse shapes (flocculent, grainy, rod-like, and sheet-like) depending on applied electroplating voltages. The gold composite nanostructures offer unique benefits for microelectrodes, for example greatly reducing double-layer impedance and greatly enhancing Raman scattering. This fabrication method is universal and offers a promising pathway for constructing gold nanostructures on electrodes selectively and controllab.y at low cost and in mass production. © 2023 IEEJ.

关键词： Double-layer impedance Electroplating Gold nanostructure Microelectrode Surface enhanced Raman scatting (SERS)

来源：评论

学校读者我要写书评

暂无评论

Multifunctional Stretchable Sensor for Monitoring Human Motion 22

Multifunctional Stretchable Sensor for Monitoring Human Moti...

引用

22nd International Conference on Solid-state Sensors, Actuators and Microsystems, Transducers 2023

作者： Zhang, Yuzhong Yuan, Jinfeng Wei, Caise Zhu, Rong Tsinghua University State Key Laboratory Of Precision Measurement Technology And Instruments Department Of Precision Instrument Beijing China Mems Lab Department Of Precision Instrument Tsinghua University Beijing100084 China

ISBN: (纸本)9784886864352

Human motion monitoring plays an important role in daily exercise management, motor rehabilitation training and human-robot interaction. In this paper, a novel stretchable epidermal sensor for monitoring human motion is proposed and developed. The sensor has multifunction of perceiving three-dimensional body/limb motion velocity, sensing temperature, recognizing human exercise states, and estimating motion energy expenditure. The proposed sensor can be applied to human motor function assessment, human-robot interaction control, and etc. © 2023 IEEJ.

关键词： human motion monitoring motion velocity motor function assessment Stretchable sensor thermal sensing

来源：评论

学校读者我要写书评

暂无评论

A Wearable Multisensory Pulse Sensor Based on Piezo-Thermic Transduction 22

A Wearable Multisensory Pulse Sensor Based on Piezo-Thermic ...

引用

22nd International Conference on Solid-state Sensors, Actuators and Microsystems, Transducers 2023

作者： Tian, Shuo Zhu, Rong Tsinghua University State Key Laboratory Of Precision Measurement Technology And Instruments Department Of Precision Instrument Beijing China Tsinghua University Mems Lab Department Of Precision Instrument Beijing100084 China

ISBN: (纸本)9784886864352

Pulse signal contains important human physiological information for the auxiliary diagnosis of cardiovascular disease. Accurate measurement on pulse waveform is challenging due to its subtle, multi-peaks and preloading characteristics. This paper reports a novel wearable multisensory pulse sensor based on piezo-thermic transduction, which employs human natural skin in conjunction with a silver-particle reinforced porous polydimethylsiloxane (PDMS) membrane to transduce pulse pressure into thermo-attribute for highly-sensitive detection of radial artery pulse waves. The sensor demonstrate superior sensitivity and excellent linearity in a preload diagnostic measuring range, enabling continuous, and highly sensitive monitoring of radial pulse pressure wave, skin temperature, and wearing pressure for personal healthcare and medical diagnosis. © 2023 IEEJ.

关键词： Multisensory sensor piezo-thermic transduction pulse pressure wave skin temperature wearable healthcare

来源：评论

学校读者我要写书评

暂无评论

Area Expansion Effect of Glare Suppression with Low-transmittance Eigenchannels of Transmission Matrices 14

Area Expansion Effect of Glare Suppression with Low-transmit...

引用

14th International Conference on Information Optics and Photonics, CIOP 2023

作者： Zhang, Hengkang Liu, Kaige Wang, Li Chen, Mingce Guo, Shaogang Liu, Qiang Space Optoelectronic Measurement and Perception Lab. Beijing Institute of Control Engineering Beijing100190 China Ministry of Education Beijing100084 China Tsinghua University State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instrument Beijing100084 China

ISBN: (纸本)9781510671744

Wavefront shaping technique has been applied to actively control the intensity profile of optical speckles, and a recent progress is to realize glare suppression with the low-transmittance eigenchannels of the transmission matrices (TMs). This makes it possible to custom-tailor the speckle fields. For the purpose of suppressing glare at will, research about the properties of low-transmittance eigenchannels in glare suppression is demanded. In this paper, we report the area expansion effect of glare suppression with low-transmittance eigenchannels. With numerical simulations, we found the actual darkened area was larger than the set target area due to the transverse correlation of the speckle field. Their difference is related to the measuring noise of the TM and gets smaller with the increase of the noise intensity. We believe our research could help to design structured speckle fields, and it will be of significant for advanced applications of optical speckles. © 2023 SPIE.

关键词： Glare

来源：评论

学校读者我要写书评

暂无评论

Self-Powered Wearable Limb Motion Monitoring System Using Flexible Thermoelectric Power Generator 22

Self-Powered Wearable Limb Motion Monitoring System Using Fl...

引用

22nd International Conference on Solid-state Sensors, Actuators and Microsystems, Transducers 2023

作者： Yuan, Jinfeng Zhang, Yuzhong Wei, Caise Zhu, Rong Tsinghua University State Key Laboratory Of Precision Measurement Technology And Instruments Department Of Precision Instrument Beijing100084 China Tsinghua University Mems Lab Department Of Precision Instrument Beijing100084 China

ISBN: (纸本)9784886864352

This paper reports a self-powered wearable limb motion monitoring system using flexible thermoelectric power generators (f-TEG), which allows, for the first time, monitoring joint movement and metabolic energy of the human body that is powered by body heat. Experiments indicate that the output voltage of f-TEG worn on the leg reaches 23 mV under a static state, and 90 mV in a moving state. The maximum output power reaches 1600 μW and remains 560 μW through a DC booster converter. The wearable systems can achieve self-powered metabolic energy estimation based on a data-driven model, with an estimation accuracy of up to 10.8%. © 2023 IEEJ.

关键词： data fusion Flexible thermoelectric generator metabolic energy expenditure estimation self-powered

来源：评论

学校读者我要写书评

暂无评论

Reconstructing Three-Degree-of-Freedom Pose through Temporal Phase-Shifted Low-Coherence Spatial Interferograms 16

Reconstructing Three-Degree-of-Freedom Pose through Temporal...

引用

16th Pacific Rim Conference on Lasers and Electro-Optics, CLEO-PR 2024

作者： Shi, Liheng Zhang, Jinxu Gu, Yingying Gai, Fangqin Liu, Jing Wu, Guanhao Tsinghua University State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instrument Beijing100084 China Yangtze Delta Region Institute of Tsinghua University Zhejiang Research Center of Opto-electronic Sensing Zhejiang 314006 China Beijing Institute of Control Engineering Space Optoelectronic Measurement and Perception Lab. Beijing100190 China China Academy of Space Technology National Key Laboratory of Space Intelligent Control Beijing100094 China

We introduce a method for measuring three degrees of freedom using low-coherence light and temporal phase-shifting to discern position and orientation from the coherence envelope shape, enabling direct measurement wit... 详细信息

ISBN: (纸本)9798350372076

关键词： Degrees of freedom (mechanics)

来源：评论

学校读者我要写书评

暂无评论

Thickness and Refractive Index measurement Based on Fiber-Optic Spectral Interferometer

SSRN

引用

SSRN 2025年

作者： Wan, Yifu Guo, Tong Xu, Peipei Wu, Sen Zhang, Tao State Key Lab of Precision Measurement Technology and Instruments Tianjin University Weijin Road 92 Tianjin300072 China

The thickness and refractive index directly affect the performance of the device in the field of precision manufacturing, and the simultaneous measurement of thickness and refractive index imposes higher demands. In this study, an insertion method which can simultaneously measure the thickness and refractive index of transparent samples is proposed and a measurement system based on fiber-optic interferometry is developed. The insertion method measures the phase change of the interference system before and after inserting the transparent sample and measures the reflection spectrum of the sample to achieve the measurement of the thickness and refractive index of the transparent sample. If the refractive index of the sample is known, the thickness information of the sample in the region can be obtained by horizontally scanning the sample. The glass plate and PMDS film are measured in this paper, and the measurement results show that the measurement system has a measurement range of millimeter level. The uncertainty analysis of the measurement shows that the uncertainty of the insert method thickness measurement is 0.05μm (k=2), and the uncertainty of the refractive index measurement is 8.8×10-4 (k=2). © 2025, The Authors. All rights reserved.

关键词： Thickness measurement

来源：评论

学校读者我要写书评

暂无评论

Two-dimensional In_(2)Se_(3):A rising advanced material for ferroelectric data storage

引用

InfoMat 2022年第8期4卷 54-81页

作者： Yu-Ting Huang Nian-Ke Chen Zhen-Ze Li Xue-Peng Wang Hong-Bo Sun Shengbai Zhang Xian-Bin Li State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchunChina State Key Lab of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijingChina Department of Physics Applied Physicsand AstronomyRensselaer Polytechnic InstituteTroyNew YorkUSA

Ferroelectric memory is a promising candidate for next-generation nonvolatile memory owing to its outstanding performance such as low power consump-tion,fast speed,and high ***,the ferroelectricity of conven-tional ferroelectric materials will be eliminated by the depolarization field when the size drops to the nanometer *** a result,the miniaturization of ferroelectric devices was hindered,which makes ferroelectric memory unable to keep up with the development of integrated-circuit(IC)***,a two-dimensional(2D)In2Se3 was reported to maintain stable ferro-electricity at the ultrathin scale,which is expected to break through the bottle-neck of ***,devices based on 2D In2Se3,including the ferroelectric field-effect transistor,ferroelectric channel transistor,synaptic fer-roelectric semiconductor junction,and ferroelectric memristor were ***,a comprehensive understanding of the structures and the ferroelectric-switching mechanism of 2D In2Se3 is still ***,the atomic structures of different phases,the dynamic mechanism of ferroelectric switching,and the performance/functions of the latest devices of 2D In2Se3 are ***,the correlations among the structures,the properties,and the device performance are ***,several crucial problems or challenges and possible research directions are put *** hope that this review paper can provide timely knowledge and help for the research commu-nity to develop 2D In2Se3 based ferroelectric memory and computing technol-ogy for practical industrial applications.

关键词： 2D ferroelectric device 2D ferroelectric material 2D In2Se3 neuromorphic computing nonvolatile memory

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

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

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

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

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：