24 papers · ranked by Valyu relevance
Sergio Domínguez-Gimeno, Raúl Igual-Catalán, Inmaculada Plaza-García, Antonio Lázaro
'Antonio Lázaro'] Sensor arrays are arrangements of sensors that follow a certain pattern, usually in a row-column distribution. This study presents a systematic review on sensor arrays. For this purpose, several systematic searches of recent studies covering a period of 10 years were performed. As a result of these…
Bingnan Wang, Jiang Long, Koon Hoo Teo, Roland Moser
In this paper, multi-channel capacitive sensor arrays based on microstrip band-stop filters are studied. The sensor arrays can be used to detect the proximity of objects at different positions and directions. Each capacitive sensing structure in the array is connected to an inductive element to form resonance at…
Melissa A. Kesterson, Joe D. Luck, Michael P. Sama, Gonzalo Pajares Martinsanz
'Gonzalo Pajares Martinsanz'] An electronic, resistance-based sensor array and data acquisition system was developed to measure spray deposition from hydraulic nozzles. The sensor surface consisted of several parallel tin plated copper traces of varying widths with varying gap widths. The system contained an embedded…
Paul Morris, Cory Simon
In many gas sensing tasks, we simply wish to become aware of gas compositions that deviate from normal, "business-as-usual" conditions. We provide a methodology, illustrated by example, to computationally predict the performance of a gas sensor array design for detecting anomalous gas compositions. Specifically, we…
Shan Zhao, Lei Zhu, Shiyang Shen, Heng Du + 4 more
'Xiaodong Wang' 'Michele Norgia'] Laser space networks are an important development direction for inter-satellite communication. Detecting the angle of arrival (AOA) of multiple satellites in a wide field of view (FOV) is the key to realize inter-satellite laser communication networking. The traditional AOA detection…
Rasmus Zetter, Joonas Iivanainen, Matti Stenroos, Lauri Parkkonen
Recent advances in magnetic sensing has made on-scalp magnetoencephalography (MEG) possible. In particular, optically-pumped magnetometers (OPMs) have reached sensitivity levels that enable their use in MEG. In contrast to the SQUID sensors used in current MEG systems, OPMs do not require cryogenic cooling and can thus…
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…
Hisatoshi Mimura, Toshihisa Osaki, Haruka Oda, Sho Takamori + 4 more
Detecting volatile urinary biomarkers offers a compelling strategy for noninvasive diagnosis of diseases such as cancer. Biohybrid sensors employing sensor cells that express olfactory receptors—with finely tuned molecular recognition capabilities—are garnering increasing attention. However, their application to…
Nickolas Gantzler, Adrian Henle, Praveen Thallapally, Xiaoli Fern + 1 more
A gravimetric, MOF-based (MOF = metal-organic framework) sensor array functions by measuring the mass of gas adsorbed in an array of MOFs. Changes in the gas composition are expected to produce detectable changes in the mass of gas adsorbed in the MOFs. In practical settings, multiple components of the gas adsorb into…
Bashar Emon, Ahmadreza Kashefi, Md Habibur Rahman, Darbaz Adnan + 11 more
The tumor microenvironment plays a critical role in drug resistance, with extracellular matrix (ECM) mechanics, cell-cell crosstalk, and transport barriers contributing to poor therapeutic outcomes. Traditional two-dimensional (2D) cultures fail to capture these features, and drug efficacy in 2D often does not…
Kangping Hu, Christopher E. Arcadia, Jacob K. Rosenstein
This paper presents a 100 × 100 super-resolution integrated sensor array for microscale electrochemical impedance spectroscopy (EIS) imaging. The system is implemented in 180 nm CMOS with 10 μm × 10 μm pixels. Rather than treating each electrode independently, the sensor is designed to measure the mutual capacitance…
Alex Galvis, David J. Russomanno
The notion of a profiling sensor was first realized by a Near-Infrared (N-IR) retro-reflective prototype consisting of a vertical column of wired sparse detectors. This paper extends that prior work and presents a wireless version of a profiling sensor as a collection of sensor nodes. The sensor incorporates wireless…
Michael Rappleye, Adam Gordon-Fennel, Daniel C. Castro, Avi K. Matarasso + 12 more
Fluorescent sensor proteins are instrumental for detecting biological signals in vivo with high temporal accuracy and cell-type specificity. However, engineering sensors with physiological ligand sensitivity and selectivity is difficult because they need to be optimized through individual mutagenesis in vitro to assess…
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…
Meng Jia, Troy Sorensen, Dorit Hammerling
We propose a generic, modular framework to optimize the placement of continuous monitoring sensors on oil and gas sites aiming to maximize the methane emissions detection efficiency. Our proposed framework substantially expands the problem scale compared to previous related studies and can be adapted for different…
Michael Mitchell, Ciera McFarland, Margaret M. Coad
— Flexible robots have advantages over rigid robots in their ability to conform physically to their environment and to form a wide variety of shapes. Sensing the force applied by or to flexible robots is useful for both navigation and manipulation tasks, but it is challenging due to the need for the sensors to…
Alexander M. Gruebele, Andrew C. Zerbe, Margaret M. Coad, Allison M. Okamura + 1 more
'Allison M. Okamura' 'Mark R. Cutkosky'] Abstract— Due to their ability to move without sliding relative to their environment, soft growing robots are attractive for deploying distributed sensor networks in confined spaces. Sensing of the state of such robots would add to their capabilities as human-safe, adaptable…
Zehao Li, Shunsuke Yoshimoto, Akio Yamamoto, Yitzhak Yitzhaky
This paper proposes a proximity imaging sensor based on a tomographic approach with a low-cost conductive sheet. Particularly, by defining capacitance density, physical proximity information is transformed into electric potential. A novel theoretical model is developed to solve the capacitance density problem using the…
Lifan Luo, Boyang Zhang, Zhijie Peng, Y.K. Cheung + 4 more
'Zhigang Li' 'Michael Yu Wang' 'Hongyu Yu'] Abstract— As automation technologies advance, the need for compact and multi-modal sensors in robotic applications is growing. To address this demand, we introduce CompdVision, a novel sensor that employs a compound-eye imaging system to combine near-field 3D visual and…
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…
Dalia Osman, Xinli Du, Timothy Minton, Yohan Noh
Three-dimensional shape sensing in soft and continuum robotics is a crucial aspect for stable actuation and control in fields such as Minimally Invasive surgery, as the estimation of complex curvatures while using continuum robotic tools is required to manipulate through fragile paths. This challenge has been addressed…
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…
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…
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…