Results 21 to 30 of about 18,522 (252)

Characterization of a Low-Cost Optical Flow Sensor When Using an External Laser as a Direct Illumination Source

open access: yesSensors, 2011
In this paper, a low cost optical flow sensor is combined with an external laser device to measure surface displacements and mechanical oscillations. The measurement system is based on applying coherent light to a diffuser surface and using an optical ...
Jordi Palacín   +4 more
doaj   +1 more source

DETERMINING THE TORQUE LOADING OF THE CYCLOID GEAR [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2018
Based on experimental investigations, a very close correlation was established between the torque loading of the cycloid gear and the laser sensor’s indications measuring the displacement of the gear body. The method is given and the relationship between
Zbigniew PAWELSKI, Zbigniew ZDZIENNICKI
doaj   +1 more source

Reliability Assessment of a Vision-Based Dynamic Displacement Measurement System Using an Unmanned Aerial Vehicle

open access: yesSensors, 2023
In recent years, many studies have been conducted on the vision-based displacement measurement system using an unmanned aerial vehicle, which has been used in actual structure measurements.
Hongjin Kim, Guyeon Kim
doaj   +1 more source

Detection principle and verification of non-contact displacement meter with pico-meter resolution

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
Displacement sensors based on laser or optical fiber technology are recognized for their capacity for non-contact distance measurement based on reflection from an object, but with limited measurement distance and resolution.
Hideaki TAMIYA   +3 more
doaj   +1 more source

Piston secondary motion measurement by laser displacement sensors [PDF]

open access: yesVibroengineering Procedia, 2018
Measurement of the piston group behavior is still a challenge. Achieved accuracy and complexity go hand in hand with the financial requirements. This paper presents an unconventional measurement of the piston secondary motion using laser displacement sensors.
Dlugoš, Jozef, Novotný, Pavel
openaire   +2 more sources

Reduction of Crosstalk Errors in a Surface Encoder Having a Long Z-Directional Measuring Range

open access: yesSensors, 2022
A modified two-axis surface encoder is proposed to separately measure both the in-plane displacement and the Z-directional out-of-plane displacement with minor crosstalk errors.
Yifan Hong   +5 more
doaj   +1 more source

Refractive Index Fiber Laser Sensor by Using a Fiber Ball Lens Interferometer with Adjustable Free Spectral Range

open access: yesSensors, 2023
In this work, a fiber laser refractometer based on a fiber ball lens (FBL) interferometer is proposed. The linear cavity erbium-doped fiber laser uses an FBL structure acting as a spectral filter and sensing element for determining the RI of a liquid ...
Ricardo Iván Álvarez-Tamayo   +1 more
doaj   +1 more source

Novel Information-Driven Smoothing Spline Linearization Method for High-Precision Displacement Sensors Based on Information Criterions

open access: yesSensors, 2023
A noise-resistant linearization model that reveals the true nonlinearity of the sensor is essential for retrieving accurate physical displacement from the signals captured by sensing electronics.
Wen-Hao Zhang   +5 more
doaj   +1 more source

Discerning protein pools by selective staining with self‐labeling tags

open access: yesFEBS Letters, EarlyView.
Cell surface proteins have an intra‐ and extracellular pool. Combining genetic fusion to self‐labeling tags that can be addressed with small molecule fluorophores allows separating these pools. We highlight recent developments and techniques for state‐of‐the‐art interrogation of cell surface proteins in the complex tissue setting.
Kati Fischermanns, Johannes Broichhagen
wiley   +1 more source

Correlation coefficient local capping REMD adaptive filtering method for laser interference signal

open access: yesPLoS ONE, 2022
Considering the issue of noise reduction associated with Laser Doppler Interference (LDI) signal, the paper presented a correlation coefficient local capping robust empirical mode decomposition (REMD) filter algorithm for LDI laser sensor that enables ...
Junfeng Wu   +4 more
doaj   +2 more sources

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