21 papers · ranked by Valyu relevance
Robin Rajamäki, Visa Koivunen
| 9 | Sparse Sensor Arrays for Active Sensing: Models, Configura | | | | |------------------------|------------------------------------------------------------|-------------|---------------------------------------------------------|----| | tions and Applications | | | 1 | | | | 9.1 | | Introduction | 1 | | | | 9.1.1 |…
He Wang, Dechao Wang, Hang Zhu, Tianye Yang + 1 more
Oxide semiconductor gas sensors are widely used due to their low cost, rapid response, small footprint, and ease of integration. However, in complex gas mixtures their selectivity is often limited by inherent cross-sensitivity. To address this, we developed a reconfigurable sensor-array system that supports up to 12…
Néstor Eduardo Sánchez-Arriaga, Ethan Canzini, Nathan John Espley-Plumb, Michael Farnsworth + 3 more
Thin-film inspection on large-area substrates in coating manufacture remains a critical parameter to ensure product quality; however, extending the inspection process precisely over a large area presents major challenges, due to the limitations of the available inspection equipment. An additional manipulation problem…
Guolin Yun, Zesheng Chen, Zhuo Chen, Jinrui Chen + 5 more
Flexible tactile sensors are pivotal for advancing neuroprosthetics, human-machine interactions and intelligent robotics. However, achieving highly sensitive tactile sensing to differentiate normal and tangential forces, particularly in mimicking the high-resolution multidimensional haptics of human fingers, remains a…
Yirui Kong, Zhenhua Guo, Weifu Kong, Hongjuan Li + 5 more
Real-time quality monitoring during oyster cold chain transportation is a critical component in ensuring food safety. Addressing the issues of high redundancy and insufficient environmental adaptability in existing electronic nose systems, this study proposes a multi-algorithm collaborative optimization strategy for…
Namkha Gyeltshen, Adrian Garrido Sanchis, Nishant Jagannath, Savindu Radaliyagoda + 3 more
Conventional chemical analysis relies on costly laboratory instrumentation, while current e-nose systems are expensive for widespread deployment. New opportunities for low-cost, accessible e-nose applications are emerging for diverse fields due to the rapid evolution of inexpensive sensor technologies. We developed a…
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…
Namya Malik, Ashish Patwari, Sangeetha N
Two-fold redundant sparse arrays possess inbuilt redundancy to tackle single-element failures. This property enables them to perform accurate direction of arrival (DOA) estimation even during single sensor faults. However, recent literature suggests that some TFRSAs suffer from hidden dependencies whereby a single…
Ravi Umadi
Accurate spatial localisation of free-flying echolocating bats is foundational for resolving fine-scale flight behaviour, prey interception, and spatial decision-making in natural environments. Acoustic localisation using microphone arrays is widely employed for this purpose, yet array geometries in field studies are…
Nicholas A. Alexander, Alberto Mariola, Sahitya Puvvada, Yulia Bezsudnova + 3 more
Optically pumped magnetometers (OPMs) can be used for magnetoencephalography (MEG) with equivalent or improved signal to noise ratio, relative to cryogenic MEG, when sensors are placed close to the scalp. OPM-based MEG can also be used in mobile contexts if sensors are placed in lightweight, wearable arrays.…
Zhong, Luoyan, Kim, Heather Jin Hee + 4 more
—Flexible tactile sensors are increasingly used in realworld applications such as robotic grippers, prosthetic hands, wearable gloves, and assistive devices, where they need to conform to curved and irregular surfaces. However, most existing tactile sensors are calibrated only on flat substrates, and their accuracy and…
Authors not listed
To address the stability and cost limitations of enzymatic glucose sensors, this work details the use of nanoporous copper (NPC) modified microdisc array (MDA) sensors for non-enzymatic glucose detection, with a focus on bovine health monitoring. Electrochemical analysis in 0.1 M NaOH, using cyclic voltammetry (CV) and…
Yulu Cai, Caleb Ronders, Vittorio Mottini, Hang Yuan + 11 more
The intelligence of the human biological system is enabled by the highly distributed sensing receptors on soft skin that can distinguish various stimulations or environmental cues, thus establishing the fundamental logic of sensing and physiological regulation or response. To replicate biological perception, two…
Bartosz Krajnik, Monika Maciejewska, Stanisław Janeczko, Andrzej Szczurek
The queen bee is the central individual responsible for colony establishment, growth, and survival. Reliable confirmation of successful mating, continued queen presence, and normal reproductive performance is essential for effective colony management. We present a queen bee detection system based on an array of…
Carter T. Noh, Kenneth Smith, Christian L. Shamo, Jordan Porter + 7 more
Highlights What are the main findings?1. Novel sensor concept uses strain gauges on a cantilever beam to simultaneously measure force and position. 2. Sensor is highly linear, with accuracy primarily based on the applied load. What is the implication of the main finding?1. The sensor can be designed to fit a wide…
Huo, Jun, Ru, Hongge + 8 more
—Soft multi-axis force/torque sensors provide safe and precise force interaction. Capturing the complete degree-offreedom of force is imperative for accurate force measurement with six-axis force/torque sensors. However, cross-axis coupling can lead to calibration issues and decreased accuracy. In this instance…
Vanshika Datta, C. Nahak
Sensors are vital for environmental monitoring, yet their effectiveness diminishes under spatial uncertainty. We propose a robust optimization framework for maximizing the coverage of aerial directional sensors under spatial uncertainty. Each sensor projects a truncated sector on the ground, parameterized by its…
Authors not listed
Despite the promise of self-driving laboratories to accelerate discovery, their widespread implementation is hindered by prohibitive cost and technical complexity. We introduce BrickSDLab, a fully functional self-driving lab platform built entirely from LEGO® components, designed to bridge this accessibility gap.…
Authors not listed
Non-invasive biomarker assessment in saliva offers a promising route for early detection of bovine respiratory disease (BRD) and scour in calves. However, accurate electrochemical sensing in this complex matrix remains challenging due to variable pH, viscosity, and interfering species. Here, we report an integrated…
Yiding Nie, Dongliang Fan, Jiatai Huang, Chunyu Liu + 1 more
— Stretchable sensors indicate promising prospects for soft robotics, medical devices, and human-machine interactions due to the high compliance of soft materials. Discrete sensing strategies, including sensor arrays and distributed sensors, are broadly involved in tactile sensors across versatile applications.…
Authors not listed
Machine olfaction—the artificial replication of the sense of smell—faces significant challenges due to the absence of large, standardized training datasets. Unlike vision, language, and audio models, which benefit from extensive corpora such as ImageNet, GLUE, and AudioSet, olfaction lacks scaled equivalents and…