Results 21 to 30 of about 82,131 (349)

Re-Calibration of Model-Based Capacitive Sensor for IoT Soil Moisture Measurements

open access: yesJournal of Applied Informatics and Computing, 2023
Low-cost automatic irrigation systems require quality calibrated soil moisture sensors. The sensor is an indirect method of soil moisture measurement. The sensor works based on the change in the dielectric constant.
Iman Setiawan   +2 more
doaj   +1 more source

A micro-capacitive pressure sensor design and modelling [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2016
Measuring air pressure using a capacitive pressure sensor is a robust and precise technique. In addition, a system that employs such transducers lies within the low power consumption applications such as wireless sensor nodes.
A. E. Kubba   +3 more
doaj   +1 more source

The capability of capacitive sensors in the monitoring relative humidity in hypogeum environments [PDF]

open access: yes, 2018
Hypogeum environments are characterized by high levels of relative humidity (RH). Most humidity sensors currently in use are based on the capacitive effect of the dielectric material to change according to water vapour uptake.
Caratelli, A, Frasca, F, Siani, Am
core   +1 more source

An Improved Capacitive Sensor for Detecting the Micro-Clearance of Spherical Joints

open access: yesSensors, 2019
Due to the flexible and compact structures, spherical joints are widely used in parallel manipulators and industrial robots. Real-time detection of the clearance between the ball and the socket in spherical joints is beneficial to compensate motion ...
Wen Wang   +8 more
doaj   +1 more source

Wearable Capacitive-based Wrist-worn Gesture Sensing System [PDF]

open access: yes, 2017
Gesture control plays an increasingly significant role in modern human-machine interactions. This paper presents an innovative method of gesture recognition using flexible capacitive pressure sensor attached on user’s wrist towards computer vision and ...
Dahiya, Ravinder   +2 more
core   +1 more source

Tunable seesaw-like 3D capacitive sensor for force and acceleration sensing

open access: yesnpj Flexible Electronics, 2021
To address the resource-competing issue between high sensitivity and wide working range for a stand-alone sensor, development of capacitive sensors with an adjustable gap between two electrodes has been of growing interest.
Jilong Ye   +8 more
doaj   +1 more source

Automotive Seat Occupancy Sensor Based on e-Textile Technology

open access: yesEngineering Proceedings, 2023
A woven capacitive sensor is presented as a novel automotive seat occupancy sensor. The woven capacitive sensor is developed as a response to one of the most difficult challenges that the automotive sector has faced the past few years: seat occupancy ...
Marc Martínez-Estrada   +2 more
doaj   +1 more source

Contact-Free Biosignal Acquisition via Capacitive and Ultrasonic Sensors

open access: yesIEEE Access, 2020
Contact-free detection of human vital signs like heart rate and respiration rate will improve the patients' comfort and enables long-term monitoring of newborns or bedridden patients.
Roman Kusche   +3 more
doaj   +1 more source

An Auto-Balancing Capacitance-to-Pulse-Width Converter for Capacitive Sensors [PDF]

open access: yesIEEE Sensors Journal, 2021
A novel auto-balancing capacitance-to-pulse- width converter (CPC) that uses sinusoidal excitation, and operates in a closed-loop configuration, is presented in this paper. Unlike most of the existing CPCs, the proposed interface circuit is compatible with both single-element and differential capacitive sensors.
Lakshmi Areekath   +2 more
openaire   +3 more sources

Synthesis and characterization of 2D MXene: Device fabrication for humidity sensing

open access: yesJournal of Science: Advanced Materials and Devices, 2022
High-performance MXene based capacitive humidity sensor is fabricated by a drop casting method. The material is characterized by Fourier Transform Infrared Spectrometry (FTIR), Energy Dispersive X-ray Spectroscopy (EDX), Scanning Electron Microscopy (SEM)
Yasir-Ul Haq   +6 more
doaj   +1 more source

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