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1983 articles for “DHT-11 Sensors” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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A Study on Wireless Sensor Network Deployment and Lifetime Maximization of Wireless Sensor Nodes in Natural Gas Pipeline Monitoring System
Abstract: AbstractLeakage in Natural Gas Pipeline is a very common problem that may lead to economic losses, environmental hazards and pollution. Therefore, the maintenance and security monitoring of the natural gas pipeline has remained a big concern for many years. In the recent times, implementation of Wireless Sensor Networks (WSNs) has become very popular. This is due to the low cost and sustainability of WSNs. Since, the implementation of WSNs in …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 3, 2016 · pp. 7–16 Read article
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An Introduction to Robotics and its Interaction with Humans
Abstract: AbstractThe purpose of this paper is to show an application of path planning for a mobile pneumatic robot. The robot is capable of searching for a specific target in the scene and navigating towards it, in an a priori unknown environment. To accomplish this task, the robot uses a colour pan-tilt camera and two ultrasonic sensors. As the camera is only used for target tracking, the robot is left with …
Published in Journal of Advancements in Robotics · Vol. 4, Issue 1, 2017 · pp. 1–5 Read article
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Types and Applications of Chemochromic Sensors
Abstract: Smart materials, also known as responsive or intelligent materials such as chemochromic materials changes colour upon exposure to a different environment or when react with different chemicals. Chemo chromic sensors are specially designed for robustness and can be used for leak detection in the vicinity of connections, valves, or Hydrogen line outlets. They can be altered, nevertheless, for a variety of uses. These are the materials whose colors and reflective …
Published in Recent Trends in Sensor Research & Technology · Vol. 10, Issue 2, 2023 · pp. 17–22 Read article
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A study on CMOS Operational Amplifier in Sensor Development
Abstract: CMOS operational amplifiers (op-amps) have emerged as pivotal components in modern sensor development, enabling the amplification and conditioning of weak signals with high precision and efficiency. Their inherent advantages low power consumption, compact size, and seamless integration with digital circuits make them ideal for advancing miniaturized, battery-powered sensor systems in fields ranging from biomedical devices to IoT networks. By delivering precision, power efficiency, and integration, CMOS op-amps are not just …
Published in Journal of VLSI Design Tools and Technology · Vol. 16, Issue 1, 2026 · pp. 01–07 Read article
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An Overview on Quantum dot technology in Temperature sensor design
Abstract: Quantumdot (QD) thermometry harnesses the sizedependent electronic structure of semiconductor nanocrystals to translate minute temperature variations into robust optical signals. In this work we present a systematic design framework for QDbased temperature sensors that integrates (i) bandgap engineering through precise colloidal synthesis, (ii) surfacestate passivation to suppress nonradiative pathways, and (iii) a planar photonicreadout architecture compatible with lowcost, CMOSfriendly fabrication. By exploiting the linear redshift of the photoluminescence (PL) peak …
Published in Journal of Electronic Design Technology · Vol. 17, Issue 1, 2026 · pp. 10–17 Read article
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A Review of Smart Sensor-based Approaches for LPG Gas Leak Detection and Prevention
Abstract: In recent years, home fires have claimed a growing number of lives and pieces of property. Since it is very flammable, liquefied petroleum gas (LPG) can burn even some distance away from the spill. Poor-quality rubber tubes or instances in which the regulator is not turned off are to blame for most fire incidents. Due to the regulator's malfunction, the hob is currently receiving gas from the regulator. Gas leaks …
Published in Recent Trends in Fluid Mechanics · Vol. 10, Issue 1, 2023 · pp. 14–19 Read article
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Sensor Guard: Thermal Sensor System for Lion Detection and Collision Prevention
Abstract: This paper presents a novel system that utilizes thermal imaging and CCTV cameras integrated with sensors to detect heat sources, specifically focusing on the detection of lions near railway tracks to prevent collisions. The system employs infrared thermal imaging to identify heat signatures of animals, particularly lions, that may create risk to his/her life. By combining thermal sensors and machine learning algorithms, the system is capable of accurately the heat …
Published in Recent Trends in Sensor Research & Technology · Vol. 12, Issue 1, 2025 · pp. 21–28 Read article
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Enhanced Room-Temperature Gas Sensing Performance of 2% Mn-Doped Sri Lankan Natural Graphite Thin-Film Sensors for Ammonia, Acetone, and Ethanol vapors Detection
Abstract: The development of room-temperature gas sensors with high sensitivity, fast response, and low-cost remains a critical challenge for environmental monitoring and safety applications. In this work, we report the fabrication and characterization of a 2% Mn-doped Sri Lankan natural graphite thin-film sensor for the detection of ammonia (NH3), ethanol (C2H5OH), and acetone (C3H6O) vapors under ambient conditions. The sensor was prepared using the doctor-blade coating method on Indium Tin Oxide …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 2, 2026 · pp. 39–49 Read article
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Android Based Recognition of Nutrition Intake with Piezoelectric Sensor
Abstract: Ingestion rate, food intake level; these are the factors which are responsible for overweight. We design a system for the user which gives feedback about his eating habits. The sensor used here to detect swallows is MEAS piezoelectric sensor. This sensor is placed against throat. This system classifies food types in broad categories like liquid and solid food by using sensor data and also the application is developed which gives …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 4, Issue 2, 2016 · pp. 7–11 Read article
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Design and Analysis of Energy Efficient Digital Modulation Techniques for Wireless Sensor Networks
Abstract: Wireless sensor networks (WSNs) comprise huge amount of sensor nodes. These sensor nodes are tiny and battery operated, which can’t be replaced and battery is the main power resource for the sensor nodes. Energy efficiency of wireless sensor network is a critical factor, because batteries of sensor nodes can’t be renewable. Nowadays use of Wireless sensor network is at high, so tremendous research is going on to make sensor network …
Published in Recent Trends in Sensor Research & Technology · Vol. 2, Issue 2, 2015 · pp. 21–29 Read article
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Designing Digital Filters of Underwater Wireless Sensor Node
Abstract: Underwater Wireless Sensor Networks (UWSNs), an emerging area, integrate sensing, computing, and communication into a single compact device. The digital data is acquired using an FPGA (Field Programmable Gate Array), and the fusion of numerous sensor data is accomplished in the sensor node’s ARM (Advanced RISC Machine) CPU. The sensor interfacing circuit should connect the sensor to the sensor node’s data collecting system. The data from these sensors may be …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 1, Issue 1, 2023 · pp. 43–53 Read article
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Tactile Sensing Technologies in Robotics: A Review of Sensors, Materials, and Applications
Abstract: Tactile sensing, which closely resembles the human sense of touch, is an essential capability in modern robotics. It enables robots to detect and interpret physical interactions with objects, surfaces, and living beings, thereby allowing them to operate more intelligently and adaptively in complex environments. Unlike visual or auditory sensors, tactile sensors provide direct feedback about contact, pressure, texture, force, temperature, and even vibration. These sensory cues are vital for improving …
Published in International Journal of Robotics and Automation in Mechanics · Vol. 3, Issue 1, 2025 · pp. 17–23 Read article
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Smart Crop Recommendation Using IoT Sensor for Precision Agriculture
Abstract: This study addresses precision agriculture, which leverages modern technologies to enhance farming efficiency and sustainability. This study proposes a Smart Crop Recommendation System using IoT sensors to optimize crop selection based on real-time environmental conditions. The system integrates multiple sensors, including a temperature sensor, flame sensor, soil sensor, moisture sensor, and LDR sensor, to monitor crucial parameters such as temperature, soil moisture, light intensity, and fire hazards. An Arduino microcontroller …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 13, Issue 3, 2025 · pp. 29–41 Read article
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An Overview on MOSFET based Sensor Design
Abstract: In the past two decades the MOSFET has transformed from a simple switch in digital logic to an analog powerhouse that can be cofabricated with the sensing material on a single chip. MetalOxideSemiconductor FieldEffect Transistors (MOSFETs) have silently become the beating heart of modern sensor platforms, translating the faint whispers of physical, chemical, and biological phenomena into robust electrical signatures. This abstract surveys the latest advances that have turned the …
Published in Journal of Microelectronics and Solid State Devices · Vol. 13, Issue 1, 2026 · pp. 20–26 Read article
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A Low-Cost Multi-Sensor IoT System for Real-Time Segregation of Polymer Waste
Abstract: Segregation of solid waste is a critical aspect of waste management, especially in settings where technical and financial constraints limit the adoption of sophisticated technologies. The proposed low cost, sensor-driven smart waste sorting system combines a variety of sensing technologies with an integrated decision-making system. The system employs an inductive sensor, moisture sensor and capacitive sensor to measure the physical properties of waste items, allowing segregation into metal, wet and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 90–`107 Read article
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A Review on Soil Moisture Sensor
Abstract: In this paper, we are interfacing a soil moisture sensor with Arduino. This moisture sensor can study the quantity of moisture present within the soil surrounding it. It is a low-tech sensor, however best for tracking an urban garden, or your plant's water stage. This is a tool for the related garden. This sensor uses two probes to pass through the soil, after which it reads that resistance to get …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 2, 2019 · pp. 18–21 Read article
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Numerical Simulation of Energy Efficient Routing Protocol in Wireless Sensor Network Using Optimized LEACH
Abstract: Wireless sensor systems consist of, for instance, independent sensors used to measure temperature, humidity, and physical and environmental conditions spatially distributed. These sensors transmit data to a dish. Due to the huge ability of sensor network to link the physical world to the vertical world, the popularity of the wireless sensor networks (WSNs) has enormously increased. Becoming a repetitive job since those devices rely on battery power and can be …
Published in Journal Of Network security · Vol. 9, Issue 1, 2021 · pp. 48–56 Read article
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Pre-Deployment Tests of Signal Conditioning Boards for Wireless Sensor Network Deployment
Abstract: AbstractDiversity in signal measurement and transmission increases signal availability. Various well known stabilized technologies are available to use to achieve diversity in signal measurement. But to achieve transmission diversity, the wireless technology is a truly diverse mechanism of wired transmission. Wireless Sensor Network (WSN) is the practical implementation of such technology. To implement WSN for nuclear reactor signals, it requires stringent testing, qualification, verification and validation of WSN nodes and …
Published in Journal of Instrumentation Technology & Innovations · Vol. 7, Issue 2, 2017 · pp. 1–11 Read article
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Classification and Comparison of Routing Protocols in Wireless Sensor Networks
Abstract: Recent developments and the overlap of multiple technologies, including distributed signal processing, ad-hoc network routing protocols, embedded systems, integrated circuits, micro electro-mechanical systems, microprocessor hardware, and nanotechnology, have rendered the idea of Wireless Sensor Networks (WSNs) possible. Sensor network nodes are finite with regard to energy, processing capability, and communication bandwidth. Yet, since they can vary with respect to the application and network structure, the routing protocols have received the …
Published in International Journal of Wireless Security and Networks · Vol. 3, Issue 2, 2025 · pp. 35–44 Read article
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A Study on Recent Trends in Chemical Sensors for Detecting Toxic Materials
Abstract: Poisonous materials, such as mutagenic, carcinogenic, and poisonous compounds, are widely produced as a result of industrial development. Such materials continue to be hazardous to human health despite stringent management and control procedures. As a result, practical chemical sensors—such as optical, electrochemical, nanomaterial-based, and biological system-based sensors—are needed for the monitoring of dangerous chemicals. For the detection of harmful compounds, numerous new and existing chemical sensors are being created, along …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 3, 2025 · pp. 26–35 Read article