Results 11 to 20 of about 104,727 (309)

Laser-Assisted Printed Flexible Sensors: A Review

open access: yesSensors, 2019
This paper provides a substantial review of some of the significant research done on the fabrication and implementation of laser-assisted printed flexible sensors.
Tao Han   +5 more
doaj   +2 more sources

Analysis and experiment on simultaneous measurement of strain and temperature by etched and un-etched FBG pair

open access: yesResults in Optics, 2021
This paper presents analysis and experiment on simultaneous measurement of strain and temperature using pair of etched and un-etched fiber Bragg grating (FBG) fabricated in a single mode glass optical fiber.
Jitendra Kumar   +6 more
doaj   +1 more source

Phase Nanoscopy with Correlated Frequency Combs

open access: yesSensors, 2022
This study addresses any sensor based on measuring a physical quantity through the phase of a probing beam. This includes sensing of rotation, acceleration, index change, displacement, fields… While most phase measurements are made by detecting an ...
Xiaobing Zhu   +2 more
doaj   +1 more source

Modern Displacement Measuring Systems Used in Geotechnical Laboratories: Advantages and Disadvantages

open access: yesSensors, 2021
The paper presents the contemporary displacement measurement systems used in geotechnical laboratories during the determination of soil precise mechanical parameters, e.g., the shear modules G: initial and in the range of small and very small strains. In
Małgorzata Jastrzębska
doaj   +1 more source

Application of Laser Systems for Detection and Ranging in the Modern Road Transportation and Maritime Sector

open access: yesSensors, 2022
The development of light detection and ranging (lidar) technology began in the 1960s, following the invention of the laser, which represents the central component of this system, integrating laser scanning with an inertial measurement unit (IMU) and ...
Nikola Lopac   +3 more
doaj   +1 more source

Self-Mixing Laser Distance-Sensor Enhanced by Multiple Modulation Waveforms

open access: yesSensors, 2022
Optical rangefinders based on Self-Mixing Interferometry are widely described in literature, but not yet on the market as commercial instruments. The main reason is that it is relatively easy to propose new elaboration techniques and get results in ...
Federico Cavedo   +2 more
doaj   +1 more source

Intracavity Measurement Sensitivity Enhancement without Runaway Noise

open access: yesSensors, 2021
A method to increase the sensitivity of an intracavity differential phase measurement that is not made irrelevant by a larger increase of noise is explored.
Luke Horstman, Jean-Claude Diels
doaj   +1 more source

Time-division-multiplexed interrogation of fibre Bragg grating sensors using laser diodes [PDF]

open access: yes, 2001
An intensity-based technique for the interrogation of fibre Bragg grating sensors is described. The technique utilizes two longitudinal modes of a single, pulsed laser diode as a dual-wavelength source for grating illumination.
Wilson, A.   +2 more
core   +1 more source

Optical fiber sensing based on reflection laser spectroscopy [PDF]

open access: yes, 2010
An overview on high-resolution and fast interrogation of optical-fiber sensors relying on laser reflection spectroscopy is given. Fiber Bragg-gratings (FBGs) and FBG resonators built in fibers of different types are used for strain, temperature and ...
De Natale, Paolo   +34 more
core   +1 more source

Characterization of Scintillating X-ray Optical Fiber Sensors

open access: yesSensors, 2014
The paper presents a set of tests carried out in order to evaluate the design characteristics and the operating performance of a set of six X-ray extrinsic optical fiber sensors.
Dan Sporea   +5 more
doaj   +1 more source

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