Sensor

摘要： Lightweight,ultra-flexible,and robust crosslinked transition metal carbide(Ti3C2 MXene)coated polyimide(PI)(C-MXene@PI)porous composites are manufactured via a scalable dip-coating followed by chemical crosslinking approach.In addition to the hydrophobicity,anti-oxidation and extreme-temperature stability,efficient utilization of the intrinsic conductivity of MXene,the interfacial polarization between MXene and PI,and the micrometer-sized pores of the composite foams are achieved.Consequently,the composites show a satisfactory X-band electromagnetic interference(EMI)shielding effectiveness of 22.5 to 62.5 dB at a density of 28.7 to 48.7 mg cm−3,leading to an excellent surface-specific SE of 21,317 dB cm^(2)g^(−1).Moreover,the composite foams exhibit excellent electrothermal performance as flexible heaters in terms of a prominent,rapid reproducible,and stable electrothermal effect at low voltages and superior heat performance and more uniform heat distribution compared with the commercial heaters composed of alloy plates.Furthermore,the composite foams are well attached on a human body to check their electromechanical sensing performance,demonstrating the sensitive and reliable detection of human motions as wearable sensors.The excellent EMI shielding performance and multifunctionalities,along with the facile and easy-to-scalable manufacturing techniques,imply promising perspectives of the porous C-MXene@PI composites in next-generation flexible electronics,aerospace,and smart devices.

摘要： Due to the recent rapid development in the 5 G technology,the usage of sensor networks especially wireless sensor networks(WSNs)has boosted advances in the augmented reality(AR),supporting decision making in AR environments.Such decision-making needs support and consideration of artificial intelligence(AI)techniques capable of adapting to changes in AR environments for creating systems that evolve autonomously over time.Currently,it is important to apply new information fusion techniques that allow for the processing of information at low and high levels to improve the accuracy of such systems.

摘要： Hydrogen Peroxide vapour is becoming more popular to use as a method of decontamination, particularly for medical equipment and enclosures. It is highly effective in terms of microbiological kill rates and has a variety of uses in healthcare. Although it is environmentally acceptable as it spontaneously decomposes into water and oxygen, concentration of hydrogen peroxide in the air needs to be monitored and controlled. A method of calibrating hydrogen peroxide vapor sensors is described which is based on the concentration of hydrogen peroxide in saturated vapour over a solution in water at a defined temperature. The saturated vapour is generated by bubbling dry air into a solution of hydrogen peroxide at a defined concentration and temperature. A vapour at a concentration of 0.7 ppm was produced and used to successfully calibrate a hydrogen peroxide sensor.

摘要： 针对目前工业品仓库注重物流效率而忽视仓库环境安全的问题,本文在结合实际项目需求的情况下,设计了基于无线传感器网络(Wireless Sensor Networks,WSN)与Android系统的工业仓库环境监测系统,论述了整体框架方案及硬件和软件的设计,并验证了整体设计的正确性和有效性,具有良好的应用价值。0.引言。目前工业仓库的管理存储过程中。

摘要： With the advance of smart material science,robotics is evolving from rigid robots to soft robots.Compared to rigid robots,soft robots can safely interact with the environment,easily navigate in unstructured fields,and be minimized to operate in narrow spaces,owning to the new actuation and sensing technologies developed by the smart materials.In the review,different actuation and sensing technologies based on different smart materials are analyzed and summarized.According to the driving or feedback signals,actuators are categorized into electrically responsive actuators,thermally responsive actuators,magnetically responsive actuators,and photoresponsive actuators;sensors are categorized into resistive sensors,capacitive sensors,magnetic sensors,and optical waveguide sensors.After introducing the principle and several robotic prototypes of some typical materials in each category of the actuators and sensors.The advantages and disadvantages of the actuators and sensors are compared based on the categories,and their potential applications in robotics are also presented.

摘要： Rutin,a flavonoid found in fruits and vegetables,is a potential anticancer compound with strong anticancer activity.Therefore,electrochemical sensor was developed for the detection of rutin.In this study,CoWO_(4) nanosheets were synthesized via a hydrothermal method,and porous carbon(PC)was prepared via high-temperature pyrolysis.Successful preparation of the materials was confirmed,and characterization was performed by transmission electron microscopy,scanning electron microscopy,and X-ray photoelectron spectroscopy.A mixture of PC and CoWO_(4) nanosheets was used as an electrode modifier to fabricate the electrochemical sensor for the electrochemical determination of rutin.The 3D CoWO_(4) nanosheets exhibited high electrocatalytic activity and good stability.PC has a high surface-to-volume ratio and superior conductivity.Moreover,the hydrophobicity of PC allows large amounts of rutin to be adsorbed,thereby increasing the concentration of rutin at the electrode surface.Owing to the synergistic effect of the 3D CoWO_(4) nanosheets and PC,the developed electrochemical sensor was employed to quantitively determine rutin with high stability and sensitivity.The sensor showed a good linear range(5-5000 ng/mL)with a detection limit of 0.45 ng/mL.The developed sensor was successfully applied to the determination of rutin in crushed tablets and human serum samples.

摘要： For the non-stop demands for a better and smarter society, the number of electronic devices keeps increasing exponentially;and the computation power, communication data rate, smart sensing capability and intelligence are always not enough. Hardware supports software, while the integrated circuit(IC) is the core of hardware. In this long review paper, we summarize and discuss recent trending IC design directions and challenges, and try to give the readers big/cool pictures on each selected small/hot topics. We divide the trends into the following six categories, namely, 1) machine learning and artificial intelligence(AI) chips, 2) communication ICs, 3) data converters, 4) power converters, 5) imagers and range sensors, 6) emerging directions. Hope you find this paper useful for your future research and works.

摘要： With the Internet of Things(IoT)era dawning in,we are surrounded by a plethora of sensors.The present paper focuses on MEMS-based vibration measuring accelerometers,which are ubiquitously present in smartphones,tablets,smartwatches/bands,etc.These contact type vibration sensors have the unique advantage of being very small,low cost,low power,less weighing,and easily accommodatable in electronics.However,the accuracy of these sensors needs to be quantified with respect to more accurate sensors.With this objective,the paper presents a comparison of the relative sensitivity of a MEMS-based accelerometer(MPU 6050),a Geophone,and a sensor from Xiaomi Y2 smartphone with respect to a more standard Piezoelectric ICP based accelerometer,when all sensors are tested on a shaker table.Data are measured with harmonic excitation over a frequency range of 2–184 Hz.The relative sensitivity of MPU 6050 was 90%accurate in the frequency range 18–116 Hz for RMS measurements.Other sensors such as the one used in the Xiaomi Y2 smartphone and the Geophone were less accurate.The relative sensitivity measured in this work can be used to obtain sensitivity and hence more accurate data from these low-cost accelerometers.

摘要： Bioinspired hydrogels are complex materials with distinctive properties comparable to biological tissues.Their exceptional sensitivity to various external stimuli leads to substantial application potential in wearable smart devices.However,these multifaceted hydrogels are often challenging to be combined with pattern customization,stimulus responsiveness,self-healing,and biocompatibility.Herein,inspired by mussel secretions,a printable,self-healing,and biocompatible MXene-based composite hydrogel was designed and prepared by incorporating Ti3C2Tx MXene nanosheets into the hydrogel framework through the chelation of calcium ions(Ca2+)with polyacrylic acid and cellulose nanofibers at alkaline conditions.The biocompatible conductive hydrogel exhibited sensitivity(gauge factor of 2.16),self-healing(within 1 s),recognition,and adhesion,distinguishing it as an ideal candidate for wearable multifunctional sensors toward strain sensing,vocal sensing,signature detection,and Morse code transmission.Additionally,the multifunctional hydrogel manifested efficient electromagnetic interference shielding properties(reaching more than 30 dB at a thickness of 2.0 mm),protecting electronics and humans from electromagnetic radiation and pollution.Therefore,the presented work represents a versatile strategy for developing environmentally friendly conductive hydrogels,demonstrating the perspectives of intelligent hydrogels for multifunctional applications.

摘要： Rhodamine 6G-chromone-derived compounds RD1 - RD4 have been synthesized by condensation of rhodamine 6G hydrazide and substituted chromone aldehydes in ethanol using microwave-assisted reaction. The structures of these synthesized rhodamine 6G derivatives were confirmed by proton nuclear magnetic resonance (1H-NMR), carbon nuclear magnetic resonance (13C-NMR), and high-resolution mass spectra data (HRMS). Colorimetric and photophysical studies show the synthesized compounds selectively detect copper (II) ion in aqueous acetonitrile solution.

摘要： In sensor networks,positioning systems are getting to be an important issue because of its usability in many cases.In fact,there is a Global Position system(GPS)widely adopted.However,GPS is impractical in many sensor network cases.This fact derives the needs for relative measurement-based positioning algorithms.Existing relative positioning algorithms have a good result but most of solutions require special capabilities and complex operations.This paper proposes a simple positioning algorithm without the need that sensors are embedded.Our proposal needs an Agent(haring just a GPS module)that allows sensor node can calculate its real coordinates without GPS capability.

摘要： Along with the development and application of the water jet cutting, Edged technique of the water jet has been perfectgradually. In this paper, eddy current sensor to be used in automatic water jet cutting robot system creatively. In view of sheet metaldesign an eddy current sensor with waterproof type and no contact. In the paper, research and create the mathematical models of eddycurrent sensor, considered the performance of the sensor with coil parameters, the design of an effective optimization method isadvanced. The shape of coil section is adopted inverse trapezoid; the linear measurement range of sensor is improved. Experimentalresults show that the design conforms to the performance index requirement, the stability is high.

摘要： 本发明公开了一种Android系统Sensor HAL层兼容多种同种Sensor设备的移植处理方法及装置，其中方法包括设置初始化参数；读取设备驱动中注册的设备名称，并与已定义的设备名称进行匹配，确定系统中使用的Sensor设备；解析配置文件，根据模组的名称读取配置文件中相应模组的方向值及不同Sensor需要进行转换的参数值设置和方向的调整；根据读取到的驱动中设备注册的名称，将相应的设备添加到传感器列表；Android系统启动相应的线程调用Sensors HAL层中的poll函数获取底层相应设备的数据。本发明提供的Android系统Sensor HAL层兼容多种同种Sensor设备的移植处理方法及装置能够动态的判断硬件设备来进行相应接口的实现，从而快速地替换Sensor设备以及实现Sensor设备方向的调整，而不需要进行新的编译以及配置操作。

摘要： 本发明涉及一种用于测试Sensor单体的治具及Sensor单体测试方法，治具包括转接测试板和转接软性线路板；转接测试板上集成有接线端子、连接器和测试IC，接线端子连接器分别与测试IC电连接；转接软性线路板上集成有插拔端子和绑定端子；插拔端子插接在连接器上，接线端子与上位机电连接，绑定端子与待测Sensor单体连接。本发明通过转接软性线路板对应待测Sensor单体上的通道来进行测试，且针对不同类型的待测Sensor单体选取对应的测试IC以及适应通道的连接器，从而可以支持小尺寸到大尺寸产品的测试；同时在上位机的配合下测试，提高了匹配性测试准确率，提升了工作效率。

摘要： 本发明公开了一种Android系统Sensor HAL层兼容多种同种Sensor设备的移植处理方法及装置，其中方法包括设置初始化参数；读取设备驱动中注册的设备名称，并与已定义的设备名称进行匹配，确定系统中使用的Sensor设备；解析配置文件，根据模组的名称读取配置文件中相应模组的方向值及不同Sensor需要进行转换的参数值设置和方向的调整；根据读取到的驱动中设备注册的名称，将相应的设备添加到传感器列表；Android系统启动相应的线程调用Sensors HAL层中的poll函数获取底层相应设备的数据。本发明提供的Android系统Sensor HAL层兼容多种同种Sensor设备的移植处理方法及装置能够动态的判断硬件设备来进行相应接口的实现，从而快速地替换Sensor设备以及实现Sensor设备方向的调整，而不需要进行新的编译以及配置操作。

摘要： 本发明公开了一种触控薄膜sensor贴合方法，该方法具体包括以下步骤：步骤1、通过第二光学胶层将第一ITO薄膜和第二ITO薄膜贴合形成触控sensor；步骤2、通过第一光学胶层将盖板和步骤1中触控sensor贴合；步骤3、将触控FPC和触控sensor进行绑定，使触控FPC处于触控sensor外部。本发明的有益效果为：本发明通过采用新的设计方法和贴合方式，利用薄膜ITO涂层朝下的贴合方式，解决非常规设计(FPC与虚拟按键在同侧且FPC绑定区不设于盖板与触控sensor之间)的整体触控面板设计空间不足及整体干涉的问题。

摘要： 本发明涉及3D传感技术领域，具体公开一种3D‑sensor用黑色氮化铝陶瓷外壳及其制备方法。本发明通过将氮化铝生瓷基材制成带有呈矩形阵列状分布方孔的生瓷片，然后将生瓷片依次进行填孔、印刷、叠片、层压和烧结处理，得到全氮化铝陶瓷外壳。本发明提供的3D‑sensor用黑色氮化铝陶瓷外壳，在保证结构完整性的前提下，提升了元器件贴装区域的散热功能，可提高元器件的使用寿命，且氮化铝陶瓷外壳成阵列分布，可阵列贴装激光器等多种元器件，也可切割后分体贴装，满足元器件多种场景贴装使用需求，有利于扩大3D‑sensor陶瓷外壳的应用范围，且其制备方法简单，生产效率高，具有较高的应用前景。

摘要： 本发明提供了一种基于G‑sensor数据预防电动两轮车侧翻的方法及系统，运用于测量距离领域；捕捉电动两轮车的车速，判断车速是否高出预设的车速界限；采集电动两轮车的转弯系数，判断转弯系数是否大于预设的弯度系数范围；若大于，则判断电动两轮车转弯持续时间是否大于预设的危险转弯时间阈值；危险转弯时间阈值具体为根据电动两轮车的预设转弯持续时间；若是，则获取电动两轮车的座垫偏斜率；基于预设的座垫传感器监控电动两轮车的座垫偏斜率，通过座垫偏斜率与预设的偏斜界限进行比对，判断座垫偏斜率是否超出预设的偏斜范围；若超出，则采用预设的语音装置基于电动两轮车的语音输出端发送语音提示内容。

摘要： 本发明提出一种基于G‑sensor数据为电动两轮车斜坡提供助力的方法，该方法包括以下步骤：获取电动两轮车的倾斜角度，判断倾斜角度是否在预设时间范围内持续；若是，则判断电动两轮车的倾斜方向是否为向上方向倾斜，其中，向上方向倾斜为电动两轮车上坡运行方向；若否，则判断电动两轮车为向下方向倾斜，则判定电动两轮车为下坡运行；车辆处于手推上坡时，车辆主控器可向电机发出低功率助力功能，给电动两轮车提供一个上波的助力，避免出现溜坡、闯动等情况，同时减轻驾驶员手推电动两轮车上坡时的负担；车辆处于手推下坡时，车辆主控制器控制阻力功能，减缓电动两轮车的车速，解决其因为速度过快及其它原因而存在安全隐患的问题。

摘要： 本发明涉及触控屏技术领域，且公开了防止显示触控屏触控sensor破裂的防护装置，包括壳体，所述壳体的内部设置有背光板、胶框、防护框和触控屏，背光板设置在触控屏的一侧，胶框设置在触控屏的四周且与背光板固定连接，防护框设置在胶框与触控屏之间，胶框上开设有散热气密孔。该防止显示触控屏触控sensor破裂的防护装置及方法，通过设置的第一防护膜和第二防护膜，因此提高触控屏的整体硬度和韧性，同时柔软连接层与缓冲层，可以最大程度的提高触控屏的柔软性，因此其实在受到外力影响时，可以通过柔软连接层和缓冲层自身具备的弹性使的第一防护膜和第二防护膜进行相互压缩，因此减少外力作用在触控屏上，进而提高其使用寿命。

摘要： 本发明涉及光学防抖技术领域，具体为一种Sensor shift光学防抖结构装置，包括VCM AF部分和Sensor shift部分，所述Sensor shift部分还包括底座；底座的顶部四角分别设置有PCB固定弹片与圆球；PCB板二；PCB板二位于底座的顶部，且PCB板二的底部四角与四个PCB固定弹片的顶部相互对应，PCB板二的底部与圆球相互支撑；霍尔集成电路、OIS线圈、电容电阻元器件，霍尔集成电路、OIS线圈均焊接在PCB板二的四角，且霍尔集成电路位于OIS线圈的内部；CMOS传感器，CMOS传感器设置于PCB板二的顶端中部，CMOS传感器贴合有IR滤光片。本发明内，通过算法计算直接进行sensor shift来实现光学防抖，使得对焦速度更快，防抖效果更佳，sensor shift组件比lens shift组件重量大幅减轻体积减小，可解决LENS shift结构推力不足问题。

摘要： 本实用新型提供一种应用于sensor‑HUB的G‑sensor布局结构，其包括：主板；小板，其上固定有G‑sensor；FPC柔性电路板，其通过连接器设置在所述主板和所述小板之间。本实用新型能够使得一块主板去适应匹配多个外壳时，无需去调整其G‑sensor的布局，加快了研发速度和降低了研发成本。