27 papers · ranked by Valyu relevance
Wai Lok Woo, Bin Gao
Sensors are one of the key factors in the success of the Internet of Things (IoT); however, these sensors are not conventional types that simply convert physical variables into electrical signals. They have substantially evolved into something more complex and sophisticated and perform a technically and economically…
Sharifu Ura, Angkush Kumar Ghosh, Ashutosh Tiwari, Geraint Jewell + 2 more
'Divya Tiwari' 'Michael Farnsworth'] Smart manufacturing employs embedded systems such as CNC machine tools, programable logic controllers, automated guided vehicles, robots, digital measuring instruments, cyber-physical systems, and digital twins. These systems collectively perform high-level cognitive tasks…
Wai Lok Woo, Bin Gao
This Special Issue compiles a set of innovative developments on the use of sensor signals and information processing. In particular, these contributions report original studies on a wide variety of sensor signals including wireless communication, machinery, ultrasound, imaging, and internet data, and information…
Peter Werner Egger, Gidugu Lakshmi Srinivas, Mathias Brandstötter, Lichao Yang + 1 more
'Lichao Yang' 'Zhuangkun Wei'] Soft and flexible capacitive tactile sensors are vital in prosthetics, wearable health monitoring, and soft robotics applications. However, achieving accurate real-time force detection and spatial localization remains a significant challenge, especially in dynamic, non-rigid environments…
Jianghua Feng, Junfeng Xu, Wu Liao, Yong Liu + 1 more
The development of high-speed intelligent rail transit has increased the number of sensors applied on trains. These play an important role in train state control and monitoring. These sensors generally work in a severe environment, so the key problem for sensor data acquisition is to ensure data accuracy and…
Roberto Calvo-Palomino, Héctor Cordobés, Markus Engel, Markus Fuchs + 8 more
'Pratiksha Jain' 'Marc Liechti' 'Sreeraj Rajendran' 'Mathias Schäfer' 'Bertold Van den Bergh' 'Sofie Pollin' 'Domenico Giustiniano' 'Vincent Lenders'] Web spectrum monitoring systems based on crowdsourcing have recently gained popularity. These systems are however limited to applications of interest for governamental…
Giuseppe Ferri, Gianluca Barile, Alfiero Leoni
Sensor signals are physical, chemical, or biological quantities that evolve over time. Sensor systems contain one or more sensors and an electronic circuit (named an interface or read-out) that converts the input signals from the sensor into output signals suitable for correct reading and quantification of physical…
Katherine E. Duncker, Ashwini R. Shende, Irida Shyti, Ashley Ruan + 8 more
A critical goal in biology is deducing input signals from measurable readouts. Genetic circuits have successfully been designed to respond to specific analytes and produce quantifiable outputs; however, multiplexed signal processing remains challenging. This limitation is partially due to crosstalk, or sensors’…
Andrew J Harvie, Surendra K Yadav, John C de Mello
We report a sensitive, fixed-wavelength, lock-in-based optical detector built from a light-emitting diode, two colour filters, a photodetector, a small number of discrete analogue components, and a low-cost microcontroller development board. We describe the construction, operating principle, use and performance of the…
Carolina Brum Medeiros, Marcelo M. Wanderley
Digital Musical Instruments (DMIs) are musical instruments typically composed of a control surface where user interaction is measured by sensors whose values are mapped to sound synthesis algorithms. These instruments have gained interest among skilled musicians and performers in the last decades leading to artistic…
Alexandros Gazis, Ioannis Papadongonas, Athanasios Andriopoulos, Constantinos Zioudas + 1 more
This article provides a comprehensive overview of sensors commonly used in low-cost, low-power systems, focusing on key concepts such as Internet of Things (IoT), Big Data, and smart sensor technologies. It outlines the evolving roles of sensors, emphasizing their characteristics, technological advancements, and the…
Amin Gasmi
Feelings and emotions are significant determinants of the behavior of an individual. Human emotions can be established and recognized through several approaches, such as facial images, gesture, neuroimaging methods, and psychological signals [1]. The human body produces many physiological signals. These physiological…
Jie Fu, Qiya Gao, Shuang Li
With the popularization of intelligent sensing and the improvement of modern medical technology, intelligent medical sensing technology has emerged as the times require. This technology combines basic disciplines such as physics, mathematics, and materials with modern technologies such as semiconductors, integrated…
Ruochen Ding, Simon Geirnaert, Charles Hovine, Alexander Bertrand
We present a wireless EEG sensor network consisting of two miniature, wireless, behind-the-ear sensor nodes with a size of 2 cm × 3 cm, each containing a 4-channel EEG amplifier and a wireless radio. Each sensor operates independently, each having its own sampling clock, wireless radio, and local reference electrode…
Henrik Andreasson, Giorgio Grisetti, Todor Stoyanov, Alberto Pretto
A sensor is a device that converts a physical parameter or an environmental characteristic (e.g., temperature, distance, speed, etc.) into a signal that can be digitally measured and processed to perform specific tasks. Mobile robots need sensors to measure properties of their environment, thus allowing for safe…
Naveen Kumar, Rakshita Pritam Singh Dhar, César Pascual García, Vihar Georgiev
Protein sequencing is key to many biological fields to advance science and prospect medical applications based on proteomics. However, even with advanced techniques such as mass spectrometry it is hard to detect the fluctuations in AA sequences and optical/geometrical isomers, and cannot provide wide access to ex-novo…
Kai-Chun Lin, Marc Dandin
We report a 0.18 µm CMOS lab-on-a-chip system that monolithically integrates a passive radio frequency identification (RFID) interface and an 8 × 8 array of capacitance sensors configured for measuring the capacitance change resulting from an overlying biological specimen. This lab-on-CMOS platform is designed to…
Justus T. Metternich, Björn Hill, Janus A. C. Wartmann, Chen Ma + 4 more
Enzymatic reactions are used to detect analytes in a range of biochemical methods such as enzyme-linked immunosorbent assays (ELISAs). To measure the presence of an analyte, they are conjugated to a recognition unit and convert a substrate into a (colored) product that is detectable by visible (VIS) light. Thus, the…
Anomadarshi Barua, Mohammad Abdullah Al Faruque
Sensors are one of the most pervasive and integral components of today's safety-critical systems. Sensors serve as a bridge between physical quantities and connected systems. The connected systems with sensors blindly believe the sensor as there is no way to authenticate the signal coming from a sensor. This could be…
John J. Benedetto, Michael R. Dellomo
The problem is to evaluate the behavior of an object when primary sources of information about the object become unavailable, so that any information must be obtained from the intelligent use of available secondary sources. This evaluative process is reactive sensing. Reactive sensing is initially viewed in terms of…
Alexandra M. Yarger, Masateru Maeda, Igor Siwanowicz, Haruhiro Kajiyama + 3 more
Efficient representation of structural deformations is crucial for monitoring the instantaneous state of biological structures. Insects’ ability to encode wing deformations during flight demonstrates a general morphological computing principle applicable across sensory systems in nature as well as engineered systems.…
Ronald Rastre Salas, Marcos Marques da Silva Paula, Yonny Romaguera Barcelay, Walter Ricardo Brito
Electrochemical biosensors based on the combination of DHP, OG, AuNPs, and G6PD, used to determine the enzymatic activity of G6PD, showed optimal current intensity values close to pH 7.8 at room temperature. Square wave voltammetry was optimized and used to evaluate the responses of the biosensors during the enzymatic…
Mark Friedel, Benjamin Werbovetz, Amy Drexelius, Kevin Plaxco + 1 more
The ability to continually collect diagnostic information from the body during daily activity has revolutionized the monitoring of health and disease. Much of this monitoring, however, has been of physical vital signs, with the monitoring of molecular markers having been limited to glucose, primarily due to the lack of…
Gbenga Fabusola, Gina Noh, Cory Simon
The cross-sensitivity of a gas sensor can be mitigated by installing a catalytic filter upstream. The objective of the filter is to convert interferents into species that interact weakly with the recognition element of the sensor. Mathematical models may be useful for optimizing the design parameters of the catalytic…
MD Ridwan Adib, Colm Barrett, Shane O'Sullivan, Anna Flynn + 3 more
Electrochemical biosensors have been extensively researched and employed across diverse fields from environmental monitoring to clinical diagnostics. The determination of biomarkers such as glucose and pH, which are crucial for the health and well-being of animals, has led to a widespread use of these specific…
Atharv Naik, Hong Seok Lee, Jack Herrington, Giandrin Barandun + 3 more
Gas sensors present an alternative to traditional off-package food quality assessment, due to their high sensitivity and fast response without the need of sample pre-treatment. The safe integration of gas sensors into packaging without compromising sensitivity, response rate, and stability, however, remains a…
Richard Murray, Arbresha Muriqi, Cathal Larrigy, Alida Russo + 4 more
Volatile organic compounds (VOCs) are a common risk to human health in industrial and domestic settings. VOCs are often present at concentrations that cannot be detected through human odor perception. VOC sensors are, therefore, urgently needed for home and workplace environmental monitoring, including wearable sensors…