Results 71 to 80 of about 88,044 (260)

Suppression of Systematic Errors of Electronic Distance Meters for Measurement of Short Distances

open access: yesSensors, 2015
In modern industrial geodesy, high demands are placed on the final accuracy, with expectations currently falling below 1 mm. The measurement methodology and surveying instruments used have to be adjusted to meet these stringent requirements, especially ...
Jaroslav Braun   +3 more
doaj   +1 more source

ZnO Composite Graphene Coating Micro-Fiber Interferometer for Ultraviolet Detection

open access: yesSensors, 2020
A simple and reliable ultraviolet sensing method with high sensitivity is proposed. ZnO and ZnO composite graphene are successfully prepared by the hydrothermal method.
Tao Shen   +4 more
doaj   +1 more source

Pseudo-heterodyne signal processing scheme for interrogation of fiber Bragg grating sensor arrays [PDF]

open access: yes, 1998
An intensity-based interrogation technique for arrays of fiber bragg grating (FBG) sensors is reported. The technique is based upon each FBG forming one mirror of a Michelson interferometer.
Clare K. Chatterjea   +5 more
core   +1 more source

Pyrolyzed Photoresist as a Continuous‐Tone Mask for Grayscale Lithography

open access: yesAdvanced Science, EarlyView.
True grayscale contact photolithography masks are created by pyrolysis of 3D multiphoton resist patterns. The resulting carbon masks retain micrometer‐scale patterned features while providing continuous‐tone optical transmission. This approach provides access to high‐quality grayscale lithography without requiring exotic materials or commercial mask ...
Tielyr D. Creason   +9 more
wiley   +1 more source

Cascaded Photonic Crystal Fiber Interferometers for Refractive Index Sensing

open access: yesIEEE Photonics Journal, 2012
We present a cascaded fiber device based on photonic crystal fiber (PCF) interferometers for refractive index (RI) sensing. The PCF modal interferometers have microbubbles at both sides of the splice regions.
Jun Long Lim   +3 more
doaj   +1 more source

Multiple beam Michelson-based interferometer [PDF]

open access: yes, 2009
We present a modification to the classic Michelson interferometer that allows the interference of multiple beams with equal amplitude. The proposed architecture presents the same advantages and simplicity as those of a classic Michelson interferometer ...
JULIAN DAVID SANCHEZ DE LA LLAVE   +1 more
core  

Contact‐Free Human‐Machine Interfaces via Printed Thermopile Infrared Arrays

open access: yesAdvanced Science, EarlyView.
Can a printed sheet locate and sense a fingertip without being touched? Fully printed, flexible thermoelectric arrays convert the infrared from a hovering finger directly into voltage, with no external power. Aerosol‐jet‐printed silver mirrors partially shield each pixel, creating a local temperature gradient.
Zirui Wang   +9 more
wiley   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Distributed Sensing Based on Interferometry and Polarization Methods for Use in Fibre Infrastructure Protection

open access: yesSensors, 2019
Fibre optic infrastructures are very important, and therefore, it is necessary to protect them from fibre cuts. Most fibre cuts are caused by digging activity, and many network operators seek appropriate solutions enabling detection of possible ...
Petr Munster   +2 more
doaj   +1 more source

Clinically Informed Intelligent Classification of Ovarian Cancer Cells by Label‐Free Holographic Imaging Flow Cytometry

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quantitative phase maps of single cells recorded in flow cytometry modality feed a hierarchical architecture of machine learning models for the label‐free identification of subtypes of ovarian cancer. The employment of a priori clinical information improves the classification performance, thus emulating the clinical application of liquid biopsy during ...
Daniele Pirone   +11 more
wiley   +1 more source

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