Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493412
Theodoros Panagiotis Chatzinikolaou, Iosif-Angelos Fyrigos, V. Ntinas, Stavros Kitsios, P. Bousoulas, Michail-Antisthenis I. Tsompanas, D. Tsoukalas, G. Sirakoulis
Unconventional computing systems, inspired by nature’s mechanisms, provide new ways to efficiently perform several rather complex computations. Instead of the commonly used digital computing systems, a well-known unconventional approach is the utilisation of oscillating networks to execute computations. The rich dynamics of such networks can be exploited in nanoelectronic-scale by novel devices, like memristors that incorporate inherent memory features and computing capabilities. In this work, the threshold switching mechanism of low-voltage forming-free CBRAM devices is used to develop memristor-based oscillators, which are able to function as a medium for oscillation-based computations. Given the local diffusive coupling of the proposed memristor-based oscillators, the medium is capable of performing Boolean computations through oscillation interactions.
{"title":"Unconventional Logic on Memristor-Based Oscillatory Medium","authors":"Theodoros Panagiotis Chatzinikolaou, Iosif-Angelos Fyrigos, V. Ntinas, Stavros Kitsios, P. Bousoulas, Michail-Antisthenis I. Tsompanas, D. Tsoukalas, G. Sirakoulis","doi":"10.1109/MOCAST52088.2021.9493412","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493412","url":null,"abstract":"Unconventional computing systems, inspired by nature’s mechanisms, provide new ways to efficiently perform several rather complex computations. Instead of the commonly used digital computing systems, a well-known unconventional approach is the utilisation of oscillating networks to execute computations. The rich dynamics of such networks can be exploited in nanoelectronic-scale by novel devices, like memristors that incorporate inherent memory features and computing capabilities. In this work, the threshold switching mechanism of low-voltage forming-free CBRAM devices is used to develop memristor-based oscillators, which are able to function as a medium for oscillation-based computations. Given the local diffusive coupling of the proposed memristor-based oscillators, the medium is capable of performing Boolean computations through oscillation interactions.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123243218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493390
M. Salucci, A. Benoni, P. D. Rù, P. Rocca, A. Massa
The synthesis of unconventional feasible sources for building future smart electromagnetic (EM) environments is addressed in this work. Towards this aim, inverse scattering theory and concepts are effectively reformulated and exploited to design field manipulating devices (FMDs) able to modify the field radiated by a primary source (i.e., the base-station antenna) and match a user-defined target field distribution. The proposed framework allows to synthesize passive, dielectric-only, and cost-effective FMDs that could be in principle used to build bio-inspired "smart objects" within the urban environment that positively contribute to the overall system quality-of-service (QoS). An illustrative numerical proof-of-concept is shown to assess the potentialities of the proposed design framework.
{"title":"On the Synthesis of Feasible Sources for Next Generation Smart EM Environments","authors":"M. Salucci, A. Benoni, P. D. Rù, P. Rocca, A. Massa","doi":"10.1109/MOCAST52088.2021.9493390","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493390","url":null,"abstract":"The synthesis of unconventional feasible sources for building future smart electromagnetic (EM) environments is addressed in this work. Towards this aim, inverse scattering theory and concepts are effectively reformulated and exploited to design field manipulating devices (FMDs) able to modify the field radiated by a primary source (i.e., the base-station antenna) and match a user-defined target field distribution. The proposed framework allows to synthesize passive, dielectric-only, and cost-effective FMDs that could be in principle used to build bio-inspired \"smart objects\" within the urban environment that positively contribute to the overall system quality-of-service (QoS). An illustrative numerical proof-of-concept is shown to assess the potentialities of the proposed design framework.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121526765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493392
Christos Zonios, V. Tenentes
Speech command recognition (SCR) services for smart homes rely on enterprise cloud servers and a fast internet connection. This negatively impacts service availability in offline use, and it raises privacy concerns in online use. The utilization of high computational resources on Internet-of-Things (IoT) nodes and IoT gateways, allows for traditionally cloud-based services to be implemented closer to the end users. In this paper, we propose a SCR system that consists of an energy-efficient IoT node that communicates over a private BLE home network with an IoT gateway. Feature extraction on sound signals is performed on the IoT node, and speech command classification is performed on the IoT gateway using a novel deep neural network (DNN) model. We evaluate the DNN model accuracy of the proposed system using k-fold cross validation, and tune it based on the effect of different feature extraction parameters on the prediction accuracy, the IoT node energy consumption and system latency. The proposed system performs a task (sound acquisition, feature extraction, transmission and classification) with accuracy higher than 87.8%, latency ∼1.136 sec, and consumes ∼0.87 J of energy on the IoT node per task. The estimated system battery life is more than 422 days when performing a task per minute using a 3.7 V, 2000 mAh battery. The long-term battery life and the small footprint of the proposed system, make it ideal for cable-free discrete smart home installations and for wearable devices, while its offline availability reduces privacy concerns.
{"title":"Energy Efficient Speech Command Recognition for Private Smart Home IoT Applications","authors":"Christos Zonios, V. Tenentes","doi":"10.1109/MOCAST52088.2021.9493392","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493392","url":null,"abstract":"Speech command recognition (SCR) services for smart homes rely on enterprise cloud servers and a fast internet connection. This negatively impacts service availability in offline use, and it raises privacy concerns in online use. The utilization of high computational resources on Internet-of-Things (IoT) nodes and IoT gateways, allows for traditionally cloud-based services to be implemented closer to the end users. In this paper, we propose a SCR system that consists of an energy-efficient IoT node that communicates over a private BLE home network with an IoT gateway. Feature extraction on sound signals is performed on the IoT node, and speech command classification is performed on the IoT gateway using a novel deep neural network (DNN) model. We evaluate the DNN model accuracy of the proposed system using k-fold cross validation, and tune it based on the effect of different feature extraction parameters on the prediction accuracy, the IoT node energy consumption and system latency. The proposed system performs a task (sound acquisition, feature extraction, transmission and classification) with accuracy higher than 87.8%, latency ∼1.136 sec, and consumes ∼0.87 J of energy on the IoT node per task. The estimated system battery life is more than 422 days when performing a task per minute using a 3.7 V, 2000 mAh battery. The long-term battery life and the small footprint of the proposed system, make it ideal for cable-free discrete smart home installations and for wearable devices, while its offline availability reduces privacy concerns.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122441913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493337
Junjie Zhu
To maximize the physics reach, the Large Hadron Collider (LHC) plans to increase its instantaneous luminosity to 7.5×1034 cm–2s–1 and deliver 3 – 4 ab–1 of data at a center-of-mass energy of 14 TeV. To profit from this high-luminosity LHC operation with a pile-up up to 200 inelastic collisions per bunch crossing, performance of the ATLAS detector needs to be maintained and in many systems, improved. The upgraded detector will have an unprecedented output data rate of up to 200 TB/s. Real-time processing of this large data volume in a short time period is extremely challenging. New sets of both front-end and back-end electronics are required for all sub-detectors. The large number of detector channels, huge volumes of input and output data, short time available to process and transmit data, harsh radiation environment, and the need of low power consumption all impose great challenges on the designs of electronic systems.
{"title":"ATLAS toward the High Luminosity era: challenges on electronic systems","authors":"Junjie Zhu","doi":"10.1109/MOCAST52088.2021.9493337","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493337","url":null,"abstract":"To maximize the physics reach, the Large Hadron Collider (LHC) plans to increase its instantaneous luminosity to 7.5×1034 cm–2s–1 and deliver 3 – 4 ab–1 of data at a center-of-mass energy of 14 TeV. To profit from this high-luminosity LHC operation with a pile-up up to 200 inelastic collisions per bunch crossing, performance of the ATLAS detector needs to be maintained and in many systems, improved. The upgraded detector will have an unprecedented output data rate of up to 200 TB/s. Real-time processing of this large data volume in a short time period is extremely challenging. New sets of both front-end and back-end electronics are required for all sub-detectors. The large number of detector channels, huge volumes of input and output data, short time available to process and transmit data, harsh radiation environment, and the need of low power consumption all impose great challenges on the designs of electronic systems.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114332686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493403
M. Matthaiou, S. Koulouridis, S. Kotsopoulos
This paper presents an implantable, miniaturized, dual band microstrip antenna for pancreas biotelemetry in the Medical Device Radiocommunications Service (MedRadio) band (401-406 MHz) and the Industrial Scientific and Medical ISM band (2.4-2.483 GHz). Miniaturization and dual band operation are achieved by inserting a shorting pin and two U-shaped slots on its conductive surface. The current density upon the surface of the antenna and resonance are evaluated to study the effect of design modifications on the antenna operation. In addition, reflection coefficient, adjustment of the input resistance and radiation performance are presented.
{"title":"Design and Analysis of an Implantable Dual-Band Antenna for Pancreas Biotelemetry","authors":"M. Matthaiou, S. Koulouridis, S. Kotsopoulos","doi":"10.1109/MOCAST52088.2021.9493403","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493403","url":null,"abstract":"This paper presents an implantable, miniaturized, dual band microstrip antenna for pancreas biotelemetry in the Medical Device Radiocommunications Service (MedRadio) band (401-406 MHz) and the Industrial Scientific and Medical ISM band (2.4-2.483 GHz). Miniaturization and dual band operation are achieved by inserting a shorting pin and two U-shaped slots on its conductive surface. The current density upon the surface of the antenna and resonance are evaluated to study the effect of design modifications on the antenna operation. In addition, reflection coefficient, adjustment of the input resistance and radiation performance are presented.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123255205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493401
Hamidreza Talatian, M. Karami, H. Moradi, G. Vossoughi
Power augmentation is known to be one of the important applications of Exoskeletons. This paper designs a control strategy to reduce the energy consumed by users in power augmentation mode. The strategy aims to calculate and apply the interaction force between humans and robots according to human intentions. To realize human intentions, the movement's kinematic characteristics and the user's muscular activity were used. The movement patterns were learned by the robot using a set of adaptive oscillators. The human movement pattern in each movement cycle was considered the basis for predicting human intention in the next cycle. Thereby, the robot's optimal path and interaction torque were calculated and applied to the robot by the internal control loop. Within this process, Electromyography (EMG) signals are used to coordinate the robot's interaction torque with human intention. This torque is modified continuously based on the EMG signals for each moment of the movement phase. Further, this control strategy's performance was first simulated and eventually evaluated by implementing them in the experimental testbed. The results confirmed that the control strategy adopted help to achieve predefined goals.
{"title":"Design and Implementation of an Intelligent Control System for a Lower-Limb Exoskeleton to Reduce Human Energy Consumption","authors":"Hamidreza Talatian, M. Karami, H. Moradi, G. Vossoughi","doi":"10.1109/MOCAST52088.2021.9493401","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493401","url":null,"abstract":"Power augmentation is known to be one of the important applications of Exoskeletons. This paper designs a control strategy to reduce the energy consumed by users in power augmentation mode. The strategy aims to calculate and apply the interaction force between humans and robots according to human intentions. To realize human intentions, the movement's kinematic characteristics and the user's muscular activity were used. The movement patterns were learned by the robot using a set of adaptive oscillators. The human movement pattern in each movement cycle was considered the basis for predicting human intention in the next cycle. Thereby, the robot's optimal path and interaction torque were calculated and applied to the robot by the internal control loop. Within this process, Electromyography (EMG) signals are used to coordinate the robot's interaction torque with human intention. This torque is modified continuously based on the EMG signals for each moment of the movement phase. Further, this control strategy's performance was first simulated and eventually evaluated by implementing them in the experimental testbed. The results confirmed that the control strategy adopted help to achieve predefined goals.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126656516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493414
Orfeas Panetas-Felouris, S. Vlassis
This paper presents a novel time register circuit suitable for time-based or time-domain signal processing. The proposed circuit is based on the capacitor discharging method and is compensated against technology process and chip temperature variations using a novel calibration loop based on master-slave approach. The loop contains a high-speed comparator based on simple current-starved inverter logic along with a triple-point threshold voltage stabilization loop. The circuit is designed using 28nm Samsung FD-SOI process under 1V supply voltage with 10MHz operating frequency. Simulation results present an almost constant capacitor voltage discharging slope of the time register over worst case process corners and temperature between 0°C and 100°C while consuming only 10μA.
{"title":"A novel time register with process and temperature calibration","authors":"Orfeas Panetas-Felouris, S. Vlassis","doi":"10.1109/MOCAST52088.2021.9493414","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493414","url":null,"abstract":"This paper presents a novel time register circuit suitable for time-based or time-domain signal processing. The proposed circuit is based on the capacitor discharging method and is compensated against technology process and chip temperature variations using a novel calibration loop based on master-slave approach. The loop contains a high-speed comparator based on simple current-starved inverter logic along with a triple-point threshold voltage stabilization loop. The circuit is designed using 28nm Samsung FD-SOI process under 1V supply voltage with 10MHz operating frequency. Simulation results present an almost constant capacitor voltage discharging slope of the time register over worst case process corners and temperature between 0°C and 100°C while consuming only 10μA.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128799931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493363
Vassilis Alimisis, Marios Gourdouparis, Christos Dimas, P. Sotiriadis
This work proposes an ultra-low power (6.0nW), low voltage (0.6V), bulk-controlled, 10-transistors bump circuit architecture for Gaussian-function implementation. It can be used as a building block for analog implementation of Gaussian Mixture Model and Kernel Methods. The Gaussians curve width, height and center are independently and electronically adjustable. It consists of a modified current correlator and a bulk-controlled differential block with all transistors operating in sub-threshold. Proper operation, accuracy and robustness are confirmed via simulation and theoretical analysis. It was implemented in TSMC 90nm CMOS process and was simulated using the Cadence IC Suite.
本研究提出了一种超低功耗(6.0nW)、低电压(0.6V)、体控、10晶体管碰撞电路架构，用于实现高斯函数。它可以作为高斯混合模型和核方法模拟实现的构建块。高斯曲线的宽度，高度和中心是独立的和电子可调的。它由一个改进的电流相关器和一个块控差分块组成，所有晶体管都工作在亚阈值下。通过仿真和理论分析，验证了该方法的正确性、准确性和鲁棒性。采用台积电90nm CMOS工艺实现，并采用Cadence IC Suite进行仿真。
{"title":"Ultra-Low Power, Low-Voltage, Fully-Tunable, Bulk-Controlled Bump Circuit","authors":"Vassilis Alimisis, Marios Gourdouparis, Christos Dimas, P. Sotiriadis","doi":"10.1109/MOCAST52088.2021.9493363","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493363","url":null,"abstract":"This work proposes an ultra-low power (6.0nW), low voltage (0.6V), bulk-controlled, 10-transistors bump circuit architecture for Gaussian-function implementation. It can be used as a building block for analog implementation of Gaussian Mixture Model and Kernel Methods. The Gaussians curve width, height and center are independently and electronically adjustable. It consists of a modified current correlator and a bulk-controlled differential block with all transistors operating in sub-threshold. Proper operation, accuracy and robustness are confirmed via simulation and theoretical analysis. It was implemented in TSMC 90nm CMOS process and was simulated using the Cadence IC Suite.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122369420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493396
Maria Sapounaki, A. Kakarountas
In recent years, scientists strove to create devices that may ameliorate patients’ lives who suffer from a neuronal disease. These devices are mainly based on neuromorphic circuits and usually employ mathematical equations. This paper implements Izhikevich (IZH) mathematical model on an FPGA board. The paper proposes an innovative hardware architecture that creates an application-specific Processing Unit for implementing a neuron. The design achieves to decrease power consumption by 37,5% and 16% of the dynamic and the total power consumption, respectively, while maintaining the computational speed at the same level, compared to similar works.
{"title":"A Novel Low-power Neuromorphic Circuit based on Izhikevich Model","authors":"Maria Sapounaki, A. Kakarountas","doi":"10.1109/MOCAST52088.2021.9493396","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493396","url":null,"abstract":"In recent years, scientists strove to create devices that may ameliorate patients’ lives who suffer from a neuronal disease. These devices are mainly based on neuromorphic circuits and usually employ mathematical equations. This paper implements Izhikevich (IZH) mathematical model on an FPGA board. The paper proposes an innovative hardware architecture that creates an application-specific Processing Unit for implementing a neuron. The design achieves to decrease power consumption by 37,5% and 16% of the dynamic and the total power consumption, respectively, while maintaining the computational speed at the same level, compared to similar works.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121056353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-05DOI: 10.1109/MOCAST52088.2021.9493359
Cristinel Ababei, J. Richie
We present the design of a new inductive proximity sensor to detect metal targets and their direction of movement. The proposed sensor design includes a base board with the necessary microcontroller based circuitry for driving and reading the sensing LC tanks and several different solutions for the printed sensor coil. Different coil configurations are fabricated on separate printed circuit boards designed to plug-and-play into the base board. They are intended for different specific applications including for sensing metal targets approaching perpendicularly on the coil plane and for sensing and identifying the lateral direction of movement (i.e., left-to-right or right-to-left). The coil designs are studied via simulations using the freely available Numerical Electromagnetics Code (NEC). A complete hardware prototype is developed and demonstrated to detect different metal targets, including copper, brass, aluminum, and stainless steel. It is also shown that measurements obtained from hardware experiments are in good agreement with the simulations.
{"title":"Sensor Design for Inductive Proximity and Moving Direction Sensing of Metal Targets","authors":"Cristinel Ababei, J. Richie","doi":"10.1109/MOCAST52088.2021.9493359","DOIUrl":"https://doi.org/10.1109/MOCAST52088.2021.9493359","url":null,"abstract":"We present the design of a new inductive proximity sensor to detect metal targets and their direction of movement. The proposed sensor design includes a base board with the necessary microcontroller based circuitry for driving and reading the sensing LC tanks and several different solutions for the printed sensor coil. Different coil configurations are fabricated on separate printed circuit boards designed to plug-and-play into the base board. They are intended for different specific applications including for sensing metal targets approaching perpendicularly on the coil plane and for sensing and identifying the lateral direction of movement (i.e., left-to-right or right-to-left). The coil designs are studied via simulations using the freely available Numerical Electromagnetics Code (NEC). A complete hardware prototype is developed and demonstrated to detect different metal targets, including copper, brass, aluminum, and stainless steel. It is also shown that measurements obtained from hardware experiments are in good agreement with the simulations.","PeriodicalId":146990,"journal":{"name":"2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131289879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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