scholarly journals CAVITY OPTICAL TRANSDUCER PLATFORM WITH INTEGRATED ACTUATION FOR MULTIPLE SENSING APPLICATIONS

2016 ◽  
Author(s):  
T. Michels ◽  
V. Aksyuk
Keyword(s):  
Sensing Applications ◽  
Multiple Sensing ◽  
Optical Transducer

scholarly journals Mobile sensing for behavioral research: A component-based approach for rapid deployment of sensing campaigns

2019 ◽  
Vol 15 (9) ◽  
pp. 155014771987418 ◽  
Author(s):  
Ivan R Felix ◽  
Luis A Castro ◽  
Luis-Felipe Rodriguez ◽  
Oresti Banos
Keyword(s):  
Mobile Phones ◽  
Mobile Sensing ◽  
Timely Manner ◽  
New Approach ◽  
Reusable Components ◽  
Sensing Applications ◽  
Effectiveness And Efficiency ◽  
Multiple Sensing ◽  
Definition Of ◽  
Rapid Deployment

Collecting experimental data from multiple sensing devices has just recently become quite popular in behavioral and social sciences. Among existing devices, mobile phones stand out as they allow researchers to collect data from individuals in an unbiased, precise, unobtrusive, and timely manner. Current mobile sensing applications are typically developed from scratch, provide no reusable components, and frequently do not take advantage of the devices’ processing capabilities. In light of such limitations, this work presents a novel tool that leverages mobile phones not only to collect data via their sensors but also to process them on the device as soon as they are gathered. The tool provides researchers with easy-to-use services that allow them to configure the required processing routines on the mobile phones. This work proposes a new approach for rapid deployment of sensing campaigns targeted at scientists with basic technical knowledge and requiring low effort. We performed an evaluation aimed at determining whether there is a significant improvement in terms of user effectiveness and efficiency in the definition of new components. The results suggest that the proposed tool speeds up the time and reduces the effort taken for setting up and deploying a sensing campaign.

scholarly journals Multifunctional Flexible Sensor Based on Laser-Induced Graphene

Sensors ◽  
2019 ◽  
Vol 19 (16) ◽  
pp. 3477 ◽  
Author(s):  
Tao Han ◽  
Anindya Nag ◽  
Roy B. V. B. Simorangkir ◽  
Nasrin Afsarimanesh ◽  
Hangrui Liu ◽  
...  
Keyword(s):  
Low Cost ◽  
Capacitive Sensor ◽  
Electrochemical Sensing ◽  
Strain Sensing ◽  
Thermal Generation ◽  
Flexible Sensor ◽  
Sensing Applications ◽  
Sticky Tape ◽  
Multiple Sensing ◽  
Human Joint

The paper presents the design and fabrication of a low-cost and easy-to-fabricate laser-induced graphene sensor together with its implementation for multi-sensing applications. Laser-irradiation of commercial polymer film was applied for photo-thermal generation of graphene. The graphene patterned in an interdigitated shape was transferred onto Kapton sticky tape to form the electrodes of a capacitive sensor. The functionality of the sensor was validated by employing them in electrochemical and strain-sensing scenarios. Impedance spectroscopy was applied to investigate the response of the sensor. For the electrochemical sensing, different concentrations of sodium sulfate were prepared, and the fabricated sensor was used to detect the concentration differences. For the strain sensing, the sensor was deployed for monitoring of human joint movements and tactile sensing. The promising sensing results validating the applicability of the fabricated sensor for multiple sensing purposes are presented.

Smart cellulose/graphene composites fabricated byin situchemical reduction of graphene oxide for multiple sensing applications

2018 ◽  
Vol 6 (17) ◽  
pp. 7777-7785 ◽  
Author(s):  
Yian Chen ◽  
Petra Pötschke ◽  
Jürgen Pionteck ◽  
Brigitte Voit ◽  
Haisong Qi
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Green Approach ◽  
Sensing Applications ◽  
Reduced Graphene ◽  
Multiple Sensing ◽  
Oxide Composites

Multifunctional sensing abilities of cellulose/in situreduced graphene oxide composites prepared by a simple and “green” approach are presented.

A Micro-Optical Transducer for Sensing Applications

2008 ◽  
Vol 2 (4) ◽  
pp. 361-381 ◽  
Author(s):  
Paolo Corradi ◽  
Luca Ascari ◽  
Arianna Menciassi ◽  
Cecilia Laschi
Keyword(s):  
Sensing Applications ◽  
Optical Transducer

Computer simulation study about the dependence of amorphous silicon photonic waveguides efficiency on the material quality

2020 ◽  
Vol 90 (3) ◽  
pp. 30502
Author(s):  
Alessandro Fantoni ◽  
João Costa ◽  
Paulo Lourenço ◽  
Manuela Vieira
Keyword(s):  
Amorphous Silicon ◽  
High Throughput Screening ◽  
Simulation Analysis ◽  
Low Cost ◽  
Deposition Process ◽  
Large Area ◽  
Sidewall Roughness ◽  
Sensing Applications ◽  
Fabrication Defects ◽  
The Impact

Amorphous silicon PECVD photonic integrated devices are promising candidates for low cost sensing applications. This manuscript reports a simulation analysis about the impact on the overall efficiency caused by the lithography imperfections in the deposition process. The tolerance to the fabrication defects of a photonic sensor based on surface plasmonic resonance is analysed. The simulations are performed with FDTD and BPM algorithms. The device is a plasmonic interferometer composed by an a-Si:H waveguide covered by a thin gold layer. The sensing analysis is performed by equally splitting the input light into two arms, allowing the sensor to be calibrated by its reference arm. Two different 1 × 2 power splitter configurations are presented: a directional coupler and a multimode interference splitter. The waveguide sidewall roughness is considered as the major negative effect caused by deposition imperfections. The simulation results show that plasmonic effects can be excited in the interferometric waveguide structure, allowing a sensing device with enough sensitivity to support the functioning of a bio sensor for high throughput screening. In addition, the good tolerance to the waveguide wall roughness, points out the PECVD deposition technique as reliable method for the overall sensor system to be produced in a low-cost system. The large area deposition of photonics structures, allowed by the PECVD method, can be explored to design a multiplexed system for analysis of multiple biomarkers to further increase the tolerance to fabrication defects.

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