Wireless Transmission Capability Research Articles

Microconfined Assembly of High-Resolution and Mechanically Robust EGaIn Liquid Metal Stretchable Electrodes for Wearable Electronic Systems.

Stretchable electrodes based on liquid metals (LM) are widely used in human-machine interfacing, wearable bioelectronics, and other emerging technologies. However, realizing the high-precision patterning and mechanical stability remains challenging due to the poor wettability of LM. Herein, a method is reported to fabricate LM-based multilayer solid-liquid electrodes (m-SLE) utilizing electrohydrodynamic (EHD) printed confinement template. In these electrodes, LM self-assembled onto these high-resolution templates, assisted by selective wetting on the electrodeposited Cu layer. This study shows that a m-SLE composed of PDMS/Ag/Cu/EGaIn exhibits line width of ≈20µm, stretchability of ≈100%, mechanical stability ≈10000 times (stretch/relaxation cycles), and recyclability. The multi-layer structure of m-SLE enables the adjustability of strain sensing, in which the strain-sensitive Ag part can be used for non-distributed detection in human health monitoring and the strain-insensitive EGaIn part can be used as interconnects. In addition, this study demonstrates that near field communication (NFC) devices and multilayer displays integrated by m-SLEs exhibit stable wireless signal transmission capability and stretchability, suggesting its applicability in creating highly-integrated, large-scale commercial, and recyclable wearable electronics.

Triboelectric Nanosensor Fabricated on Robotic Platform for Self-Powered Detection of Heavy Metal Ions in Aquatic Environments

The escalation of heavy metal ions pollution, caused by the natural processes as well as human activities has emerged as a significant global challenge. The accumulation of heavy metal ions in the human body primarily occurs through water and food consumption which poses a severe threat leading to irreversible health damage. To address this issue, the World Health Organization (WHO) has established permissible limits for various heavy metal ions in drinking water, ranging from 0.003 to 3 ppm. When these limits are exceeded, water is deemed contaminated which necessitates effective monitoring and detection strategies. Robotic chemical sensing platforms have become indispensable for tackling chemical threats by detecting harmful pollutants in toxic environments. However, chemical sensors integrated with robotic platforms encounter drawback such as reliance on external power sources. In response to this challenge, our approach integrates a highly sensitive, self-powered triboelectric nanosensor (TENS) into a robotic platform charged by a thermoelectric generator (TEG) and equipped with wireless transmission capabilities. This integration enables the rapid on-site detection of heavy metal ions. The system employs copper electrodes modified with ion-selective membranes (ISM) as sensing probes and solid triboelectric contact materials. Through periodic contact-separation cycles with ionic solutions, the system generates electrical output, facilitating the detection of various concentrations of Pb2+, As3+, and Cr6+ ions. The ionophores in the respective ISMs contribute to the selective binding capacity of the sensing probe to the particular ion. This self-powered robotic platform provides an innovative and cost-effective solution for automated chemical sensing in water environments. Its advantages include the avoidance of external power sources, low-cost operation, and the elimination of the need for frequent battery replacements. With its capability for remote monitoring and detection, this system emerges as an ideal tool for preventing and controlling heavy metal ions pollution, ultimately contributing to the intelligent monitoring of heavy metal ions in aquatic environments. Keywords: Heavy metal ions, Solid-liquid triboelectric nanosensor, Robotic platform, Self-powered detection, Copper electrodes.

A Flexible MXene-Black Phosphorus/Zinc Oxide Hybrid Structure with Excellent UVA-Specific Photoelectric Sensing Properties for Human Skin Protection.

Ultraviolet A (UVA) radiation causes various irreversible damages to human skin, so the research about UVA-specific sensing device is urgent. 2D black phosphorus (BP) is used in many photosensors due to its advantages of high carrier mobility and tunable bandgap, but its application for UVA-specific photosensor is not reported. Here, a MXene-BP/Zinc oxide (ZnO) hybrid structure with lamellar-spherical interfaces like finger lime fruit is prepared by the layer-by-layer assembly (LLA) method, and p-n junctions are constructed between BP and ZnO with the Ti3C2Tx electrode, showing excellent photoelectric performance. Density functional theory (DFT) calculations demonstrate that the enhanced performance is attributed to the rapid separation of photogenerated carriers in the presence of a built-in electric field at interface. Furthermore, a flexible MXene-BP/ZnO based UVA-specific photosensor is prepared, which shows a specific response to UVA as high as 7 mAW-1 and excellent mechanical stability, maintaining 98.46% response after 100 bending cycles. In particular, the integrated anti-UVA skin protection device shows excellent UVA-specific identification and wireless transmission capability, which can provide timely UVA exposure information and skin protection warning for the visually impaired. This work demonstrates a new approach for further developments of advanced photoelectric sensing technology toward improving people's skin health protection.

Ocean wave energy harvesting with high energy density and self-powered monitoring system

Constructing a ocean Internet of Things requires an essential ocean environment monitoring system. However, the widely distributed existing ocean monitoring sensors make it impractical to provide power and transmit monitored information through cables. Therefore, ocean environment monitoring systems particularly need a continuous power supply and wireless transmission capability for monitoring information. Consequently, a high-strength, environmentally multi-compatible, floatable metamaterial energy harvesting device has been designed through integrated dynamic matching optimization of materials, structures, and signal transmission. The self-powered monitoring system breaks through the limitations of cables and batteries in the ultra-low-frequency wave environment (1 to 2 Hz), enabling real-time monitoring of various ocean parameters and wirelessly transmitting the data to the cloud for post-processing. Compared with solar and wind energy in the ocean environment, the energy harvesting device based on the defective state characteristics of metamaterials achieves a high-energy density (99 W/m3). For the first time, a stable power supply for the monitoring system has been realized in various weather conditions (24 h).

An intelligent planetary gearbox based on ultra-compact triboelectric-electromagnetic hybrid generator

In the context of Industry 4.0, constructing an intelligent planetary gearbox (IPG) with self-powered, self-sensing, wireless transmission, and self-diagnosis capabilities is crucial for promoting intelligent upgrades of traditional mechanical equipment. An IPG can realize real-time and accurate remote perception of the operating status, which is beneficial for improving operational reliability and safety. In this study, the ultra-compact triboelectric-electromagnetic hybrid generator (UTHG) is proposed to build an IPG with the aforementioned capabilities. It utilizes the axial space of the planet carrier and end cover for integration with the gearbox. The combination of a triboelectric nanogenerator and an electromagnetic generator can improve energy harvesting efficiency, and their complementarity can drive each module to operate more stably and continuously. The UTHG outputs are evaluated under various working conditions, structural optimizations, and working environments. Consequently, the wireless transmission module integrated with the UTHG is constructed. During operation, the UTHG supplies energy to the wireless transmission module and realizes the wireless transmission of the self-sensing signals. Finally, the fast Fourier transform and convolutional neural network are utilized to diagnose typical faults in the planetary gearbox with a diagnostic accuracy as high as 96.8%. The proposed UTHG provides an effective solution for constructing an IPG.

Application of IoT Android voice assistant based on sensor networks in higher education network mode

In order to make full use of the potential of wireless sensor networks in higher education, this study aims to provide convenient intelligent learning and management functions by constructing an iot Android voice assistant based on wireless sensor networks. The system structure of Android voice assistant based on wireless sensor network is researched, designed and implemented. Through the integration of wireless sensor network and school network platform, the data collection, transmission and analysis functions are realized. The results show that the Android voice assistant based on wireless sensor network effectively provides intelligent learning and management functions in the network mode of higher education. Students and teachers can realize course inquiry, resource acquisition, teaching evaluation and other operations through voice commands to improve learning and teaching efficiency. By combining the data acquisition capabilities of sensors and wireless transmission capabilities, the system provides students, teachers and school administrators with intelligent learning and management functions, which is expected to promote the further development of higher education network environment.

Increasing the robustness of electrodynamic WPT systems with hybrid electromechanical transduction

In this paper, we compare the electrical damping capability of low-frequency electrodynamic wireless power transmission (EWPT) systems based on a resonant electromechanical receiver in the context of increasing their mechanical robustness. This study is carried out for piezoelectric (PE) and electrodynamic (ED) transducers. The receiver studied, excited by a distant transmitter coil, consists of a magnet and a resonant cantilever beam, and both ED and PE transducers (hybrid system). A strategy based on dual energy conversion is proposed that takes advantage of each transduction characteristic: the receiver with high-quality-factor is sufficiently sensitive to very weak excitation fields far from the transmitter, while it is robust to strong magnetic fields close to the transmitter by damping its motion. This approach is particularly relevant to increase the robustness of resonant receivers powering moving sensor nodes as the field strength seen by the receiver can vary greatly. This paper aims to evaluate three energy transduction strategies (PE-only, ED-only and hybrid) to both harvest more power and increase EWPT systems robustness by overdamping. An analytical model of the system is presented along with comparison with experimental results from a 71.7 cm3 prototype. When the motion amplitude is limited to 0.7 mm to limit aging, the receiver output 19 mW which outperforms the PE and ED modes alone by a factor of 1.5 and 1.8, respectively. Furthermore, the hybrid receiver can limit the amplitude of motion to 0.7 mm under a magnetic field up to 3.6 mT, which is 2.5 and 1.2 times higher than PE and ED alone, respectively.

Miniaturized Low-Frequency Communication System Based on the Magnetoelectric Effect.

Recently, the realization of electromagnetic wave signal transmission and reception has been achieved through the utilization of the magnetoelectric effect, enabling the development of compact and portable low-frequency communication systems. In this paper, we present a miniaturized low-frequency communication system including a transmitter device and a receiver device, which operates at a frequency of 44.75 kHz, and the bandwidth is 1.1 kHz. The transmitter device employs a Terfenol-D (80 mm × 10 mm × 0.2 mm)/PZT (30 mm × 10 mm × 0.2 mm)/Terfenol-D glued composite heterojunction magnetoelectric antenna and the strongest radiation in the length direction, while the receiver device utilizes a manually crafted coil maximum size of 82 mm, yielding a minimum induced electromagnetic field of 1 pT at 44.75 kHz. With an input voltage of 150 V, the system effectively communicates over a distance of 16 m in air and achieves reception of electromagnetic wave signals within 1 m in simulated seawater with a salinity level of 35% at 25 °C. The miniaturized low-frequency communication system possesses wireless transmission capabilities, a compact size, and a rapid response, rendering it suitable for applications in mining communication, underwater communication, underwater wireless energy transmission, and underwater wireless sensor networks.

Self-Powered Robotic Sensor for Remote and Real-Time Monitoring of Heavy Metal Ions

In the recent years, heavy metal pollution has tremendously increased worldwide due to natural as well as anthropogenic reasons. Heavy metals accumulate in the human body through drinking water and food, ultimately causing irreversible damage to the body. For most of the heavy metals, the World Health Organization (WHO) has set permissible limits from 0.003-3 ppm in drinking water, above which it is contaminated. In addition, chemical threats remain a major global concern for sampling and sensing factors in unsafe environments. Therefore, robotic hand-based chemical sensing platforms that can monitor hazardous pollutants in the real environment are essential. Although robotic hand-based chemical sensors show great potential to substantially prevent humans from chemical threats in the environment, applications are often limited by the requirement of high-power consumption. In this study, we have fabricated a self-powered triboelectric nanosensor, which is integrated with a robot platform with wireless transmission capability, to detect heavy metal ions in the environment through a rapid onsite detection mechanism. In this regard, a copper electrode modified by an ion selective membrane (ISM) is used as a solid triboelectric material and is integrated with a robotic hand. Since the ionophore selectively binds to the corresponding ions, the solid-liquid TENS could detect Cr6+, Pb2+, and As3+ ions at a wide range of concentrations by the periodic contact and separate motion of the sensor probe to lead (Pb2+), arsenic (As3+) and chromium (Cr6+) solutions. This realization of direct integration of self-powered sensors with robotics provides low-cost and automated chemical sensing mechanisms. It can be applied to various environments for on-site detection of hazardous analytes and security. Finally, a real time remote monitoring system allows the presentation of the environmental monitoring data on mobile devices and enables remote real-time monitoring of the hazardous pollutants.

Remote Monitoring in Cardiac Resynchronization Therapy-First Experience in Romania with a CRT Virtual Ward.

Remote monitoring (RM) is becoming a standard of care for patients with cardiac resynchronization therapy (CRT). This technology combines the use of pacemakers or implantable cardioverter-defibrillators (ICD) and wireless communication to provide physicians with continuous, real-time information on the patient's cardiac activity. The purpose of the study was to evaluate if the remote monitoring technology in the follow-up CRT patients is feasible and safe. A total of nine patients were enrolled in the study, implanted with a CRT system with wireless transmission capabilities. Immediately after the procedure received the RM, were enrolled in the virtual clinic and instructed by the doctor how to use the device at home. Regular virtual transmissions were made automatically every 3 weeks, respecting optimal transmission conditions. The accumulation of fluid in the lungs, atrial or ventricular tachyarrhythmia together with system integrity automatically activate alerts. One hundred and one transmissions were collected and analyzed from the virtual ward. Average follow-up was 7.7±4.8 months, longest follow-up was 18 months. None of the patients experienced complications during the study period, with three of them being follow-up solely through telemetric means by implanting physician. Treatment optimization was successfully conducted via phone consultations, when necessary, without any adverse events. The results of our study suggest that RM could be integrated into routine CRT management protocols, enhancing patients care and resource utilization.

Antennas in the Internet of Vehicles: Application for X Band and Ku Band in Low-Earth-Orbiting Satellites

This paper proposes a simple and small-dimensioned antenna that can provide X band and Ku band for the low-earth-orbiting (LEO) satellite system in an Internet of vehicles system. The antenna is designed on the substrate Arlon DiClad 880. The antenna structure consists of an inverted triangle geometry and an inverted U-shaped slot. The dimensions of the antenna are 12.5 × 5 mm2, and the area of the substrate is 30 × 13 × 0.254 mm3. The antenna is easy to make, and the manufacturing cost is low. The measurement results of the reflection coefficient (lower than −10 dB) of the antenna show that the working frequency band can cover the X-band (10.87–12.76 GHz) and the Ku band (15.19–16.02 GHz). The measured and simulated results are fairly similar. The efficiency of the antenna in the X-band is about 50–80.8%. The efficiency of the antenna in the Ku-band is about 50–74%. The gains of the antennas are about 3.34–6.08 dBi and 3.50–4.65 dBi in the X-band and Ku band, respectively, and the highest gain is 6.08 dBi. The antenna design can realize the features of low cost and small dimensions in autonomous vehicles and vehicle networking communication system equipment and achieve good wireless transmission capabilities from vehicles to the base station in the IOV.

A Packaged Multiplexed Fluorescent Biomolecular Sensor Array and Ultralow-Power Wireless Interface in CMOS for Ingestible Electronic Applications

Ingestible electronics capable of laboratory quality biomolecular analysis occupying pill-sized volume, operating at sub-mW with a robust wireless interface can transform medical diagnostics and personalized healthcare. Miniaturization of complex biomolecular systems in such a volume is extremely challenging, including a wireless interface that is capable of robust communication through inches of tissue. This article presents for the first time a fully packaged biosensor system with transmitter (Tx)/receiver (Rx) antennas coupled to a single CMOS chip that integrates a low-power wireless interface and a 15-pixel fluorescence biosensor array with on-chip nanoplasmonic optical filters. The IC, operating across multiple industrial, scientific, and medical (ISM)/medical implant communication system (MICS) bands, employs pulse-pause-encoded ASK/OOK modulation, and achieves reception energy efficiency of 28 pJ/bit at 7 Mb/s and −58 dBm of sensitivity with <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$196 \mu \text{W}$ </tex-math></inline-formula> of dc power. The entire biocompatible package is miniaturized to a size of 1.2 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\times $ </tex-math></inline-formula> 2.5 cm2. To the best of the authors’ knowledge, this work demonstrates for the first time a packaged bio-pill with in situ biomolecular sensing and quantification with pM sensitivity in CMOS ICs that also encompasses wireless transmission capability through inches of tissue at state-of-the-art energy efficiency.

Standalone stretchable RF systems based on asymmetric 3D microstrip antennas with on-body wireless communication and energy harvesting

As an indispensable component, the stretchable antenna with the potential use in wireless communication and radio frequency (RF) energy harvesting can provide future wearable electronics with a low profile and integrated functions. However, mechanical deformations applied to stretchable antennas often lead to a shift of their resonant frequency (i.e., the detuning effect), which limits their applications to strain sensing. In addition, the on-body radiation efficiency of stretchable antennas severely degrades due to lossy human tissues. In this work, we introduce stretchable microstrip antennas with varying 3D configurations for excellent on-body radiation performance. Compared to their 2D counterpart, the stretchable 3D microstrip antennas showcase a strain-insensitive resonance, improved stretchability, and enhanced peak gain. In particular, the optimized peak gain from the stretchable asymmetric 3D microstrip antenna allows it to wirelessly transmit the energy and data at an almost doubled distance, as well as a doubled charging rate from the harvested RF energy. More importantly, the integration of stretchable antenna and rectenna with stretchable sensing and energy storage units can yield a standalone stretchable RF system for future health monitoring of humans and structures. The results from this work can also pave the way for the development of self-powered units with wireless transmission capabilities for stretchable body area networks and smart internet-of-things.

MXene membrane in planar microwave resonant structures for 5G applications

Impressive advancements of sensor systems alongside the requirements of their mass deployment via the Internet of Things (IoT) with ultra-low latency, high reliability, and user accessibility have made fifth-generation (5G) telecommunication technology a necessary candidate for the required wireless communication network. Traditionally, microwave and microelectronics technologies employed in 5G use metal components in their structure to satisfy the efficiency demands which are undesirable due to their rigid and corrosion properties in certain novel 5G applications. Recent research trends on microwave devices have utilized conductive carbon-based composite materials that are lightweight and flexible as an alternative to metals. Although these materials' electrical properties are preferable, they are generally implemented as a permanent coating for microwave structure fabrication with no possibility to change or remove them. This work investigates the integration of lightweight MXene circular membranes in microwave resonator and antenna structures. The designed MXene resonator demonstrated three peaks under the sub-6 GHz band of 5G communication in the frequencies of 1.506, 2.527, and 3.546 GHz, which are comparable to conventionally used metals. Moreover, the MXene circular membrane was implemented as a microstrip antenna to offer an operation frequency and amplitude of 1.841 GHz and – 38.895 dB, respectively. The fabricated lightweight MXene antenna demonstrated wireless transmission capabilities and a potential to be implemented in 5G networks, featuring 57% of the thickness and 26.66% of the weight compared to similarly designed copper-based structures. Moreover, the performed simulations demonstrated that adjusting the size of the MXene circular membrane can result in operation frequency changes for the resonator, which indicates the potential of fabricating frequency-tunable structures for sub-6 GHz 5G applications.

Traffic-Aware Task Offloading Based on Convergence of Communication and Sensing in Vehicular Edge Computing

With the explosive growth of computation-intensive and latency-sensitive vehicular applications, limited on-board computing resources can hardly satisfy these heterogeneous requirements and task offloading becomes a potential solution. However, task offloading in vehicular networks may face the dilemma of unaffordable uploading time caused by the huge amount of uploading traffic. Therefore, considering the applications which use the environmental data as their input, the sensing abilities of serving nodes (SNs) are exploited and a traffic-aware task offloading (TATO) mechanism based on convergence of communication and sensing is proposed. In the TATO mechanism, a task vehicle can adaptively upload the input data to some SNs and transmit the computation instructions to others which use the environmental data sensed by themselves as input. The objective is to minimize the overall response time (ORT) by jointly optimizing the task and wireless bandwidth ratios. Next, a binary search and feasibility check (BSFC) algorithm is designed to solve the optimization problem. Simulation results demonstrate the effectiveness of the proposed BSFC algorithm and show that the TATO mechanism always outperforms the benchmark mechanisms (i.e., communication-based offloading and sensing-based offloading) in terms of the ORT. Specifically, when the task offloading traffic is huge and the wireless transmission capability becomes a bottleneck, TATO can reduce the ORT by 42.8% compared with that of the communication-based offloading.

RETRACTED ARTICLE: Practical application of wireless communication network multimedia courseware in college basketball teaching

With the acceleration of informatization and the coverage of wireless networks, homes, conferences, schools and other places have a higher pursuit of the wireless transmission capabilities of electronic devices. Wireless screen transmission technology is used more frequently in life, work and study. This article mainly discusses the practical application of network multimedia courseware in college basketball teaching. This article first elaborates the teaching plan of multimedia courseware, including teaching content, teacher guidance, student learning and multimedia courseware. Secondly, the multimedia courseware of basketball tactics basic teaching is completed by using Flash mx2004 plug-in. After that, it specifically introduces the process of how to transmit basketball teaching content through multimedia equipment to the video network for students to learn under the wireless network environment. It emphasizes that the “wireless multimedia communication” course is an important course in the electronic information subject. Finally, through the teaching experiment, the accuracy of the multimedia teaching method was tested, and the validity of the courseware content was tested by the empirical validity evaluation method. At the same time, after the teaching experiment, in order to test the two groups of students’ mastery of the basic coordination theory of basketball tactics, the basic coordination theory of basketball tactics was tested. The experimental group had 22 students with a score of 90 or more, accounting for 27.5%, and the control group had 13 students with a score of 90 or more, accounting for 16.5%. The results show that wireless network multimedia computer-assisted teaching has a positive effect on improving students’ interest in learning.

A Security Defect Diagnosis Method of Wireless Network based on Modal Symmetry Algorithm

In order to enhance the security of wireless networks and enhance the ability of data acquisition, processing and transmission, the security defects of wireless networks are diagnosed based on the modal symmetry algorithm. According to the amplitude of the defective signals collected by wireless network sensors, the average value of the signals collected by the centrosymmetric sensors is linearly subtracted, and the asymmetric modal information and the asymmetric modal amplitude of the axial position of wireless networks are obtained. On the basis of the original defect vibration signal graded by variational mode, several eigenmode components are obtained, and then the ranking entropy of each modal component is calculated. The ranking entropy is input as eigenvector to support vector machine classifier to complete the classification and recognition of wireless network security defects. The experimental results show that this method can accurately diagnose the security defects of wireless networks in different locations. The more complex the wireless network is, the higher the accuracy of the diagnosis results is and the shorter the time consuming results are. After the defect diagnosis, the wireless network data acquisition, data processing and transmission capabilities have been enhanced.

A dual measurement and stimulating system to monitor and promote NNS

The present paper presents a dual system that can be used to measure and to generate non-nutritive sucking (NNS) signals. The NNS measurement is based on a pressure sensor that is pneumatically connected to a silicone pacifier. By its turn, the NNS stimulator is based on a miniature pump and a miniature electro-valve that are operated by opposite phased signals to produce the pulsed pressure signal that is pneumatically applied to the silicone pacifier. The paper highlights some specific issues related with the calibration of the pneumatic signal measuring chain. Processing and wireless transmission capabilities are provided by a low-cost solution based on a microcontroller. Calibration and experimental results are also included in the paper.

A Cuttable Wireless Power Transfer Sheet

We propose a cuttable wireless power transfer sheet which allows users to modify its size and shape. This intuitive manipulation allows users to easily add wireless power transmission capabilities to everyday objects. The properties of the sheet such as thinness, flexibility, and lightness make our sheet highly compatible with various configurations. We contribute a set of technical principles for the design of circuitry, which integrates H-tree wiring and time division power supply techniques. H-tree wiring allows the sheet to remain functional even when cut from the outside of the sheet, whereas time division power supply avoids the reduction in power transfer efficiency caused by the magnetic interference between adjacent transmitter coils. Through the evaluations, we found that our time division power supply scheme mitigates the degradation of power transfer efficiency and successfully improves the average efficiency. Furthermore, we present four applications which integrates our sheet into daily objects: wireless charging furniture, bag, jacket, and craft; these applications confirmed the feasibility of our prototype.

Laser Direct Writing of Ultrahigh Sensitive SiC‐Based Strain Sensor Arrays on Elastomer toward Electronic Skins

AbstractElectronic skins (e‐skins) have been widely investigated as important platforms for healthcare monitoring, human/machine interfaces, and soft robots. However, mask‐free formation of patterned active materials on elastomer substrates without involving high‐cost and complicate processes is still a grand challenge in developing e‐skins. Here, SiC‐based strain sensor arrays are fabricated on elastomer for e‐skins by a laser direct writing (LDW) technique, which is mask‐free, highly efficient, and scalable. The direct synthesis of active material on elastomer is ascribed to the LDW‐induced conversion of siloxanes to SiC. The SiC‐based devices own a highest sensitivity of ≈2.47 × 105 achieved at a laser power of 0.8 W and a scanning velocity of 1.25 mm s−1. Moreover, the LDW‐developed device provides a minimum strain detection limit of 0.05%, a small temperature drift, and a high mechanical durability for over 10 000 cycles. When it is mounted onto human skins, the SiC‐based device is able to monitor external stimuli and human health conditions, with the capability of wireless data transmission. Its potential application in e‐skins is further proved by an LDW‐fabricated device having 3 × 3 SiC sensor array for tactile sensing.