Results 11 to 20 of about 2,189,833 (270)

Measuring Instrument Precision Estimation in Destructive Testing [PDF]

The variability introduced into measurements by a measuring instrument is referred to as measurement instrument precision. Experimental procedures and analysis methods exist when measurements are repeatable and can be repeated on the same item.
Sunil Raj, Sayooj
core   +6 more sources

Precision Engineering behind European Astronomy Programmes [PDF]

, 2011
The fields of astronomy science have presented significant precision engineering challenges. Numerous solutions for these fields of science have achieved unprecedented levels of accuracy, sensitivity and sheer scale.
Shore, Paul, Tonnellier, Xavier
core   +7 more sources

A motion characteristics modeled angular position sensor by nonlinear transfer of differential capacitance for miniaturized scanning mirrors

Microsystems & Nanoengineering, 2023
In this paper, an angular position sensor (APS) designed for a resonant miniaturized scanning mirror (M-SM) is presented. The APS operates based on the principle of differential variable capacitance, significantly expanding the detectable bandwidth from ...
Songtao Liu, Gaofei Zhang, Lingyun Zhang, Junya Wang, Minghao Gong, Zheng You   +5 more
doaj   +1 more source

Magnetic Fault-Tolerant Attitude Control with Dynamic Sensing for Remote Sensing CubeSats

Remote Sensing, 2023
CubeSats have extensive applications in the realm of remote sensing. However, due to size constraints, attitude determination and control systems (ADCS) often adopt an integrated and densely packed structure.
Shaoyan Fan, Ziang Cui, Xuedi Chen, Xinyuan Liu, Fei Xing, Zheng You   +5 more
doaj   +1 more source

All-fiber high-speed image detection enabled by deep learning

Nature Communications, 2022
Here, the authors demonstrate high-speed imaging through multimode optical fibers by using the high intermodal dispersion to transform 2D spatial information into 1D temporal pulsed signal streams.
Zhoutian Liu, Lele Wang, Yuan Meng, Tiantian He, Sifeng He, Yousi Yang, Liuyue Wang, Jiading Tian, Dan Li, Ping Yan, Mali Gong, Qiang Liu, Qirong Xiao   +12 more
doaj   +1 more source

Destructive measuring instrument precision estimation

Measuring instrument precision/repeatability is one variance component in a measurement system. Assessing measuring instrument precision is necessary to evaluate its capability for a particular application.
Puengpatarakit, Patteera
core   +6 more sources

High-precision gas refractometer by comb-mode-resolved spectral interferometry

Scientific Reports, 2018
High-accuracy knowledge of gas refractivity is typically crucial for optical interferometry, precise optical systems, and calculable pressure standard development.
Lijun Yang, Yan Li, Haoyun Wei
doaj   +1 more source

Flexible minimally invasive coherent anti-Stokes Raman spectroscopy (CARS) measurement method with tapered optical fiber probe for single-cell application

PhotoniX, 2022
We proposed and demonstrated a flexible, endoscopic, and minimally invasive coherent anti-Raman Stokes scattering (CARS) measurement method for single-cell application, employing a tapered optical fiber probe. A few-mode fiber (FMF), whose generated four-
Tong Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Panpan Niu, Yize Liu, Tiegen Liu   +6 more
doaj   +1 more source

Ultrasensitive Linear Capacitive Pressure Sensor with Wrinkled Microstructures for Tactile Perception

Advanced Science, 2023
Ultrasensitive flexible pressure sensors with excellent linearity are essential for achieving tactile perception. Although microstructured dielectrics have endowed capacitive sensors with ultrahigh sensitivity, the compromise of sensitivity with ...
Chunyu Lv, Chengcheng Tian, Jiashun Jiang, Yu Dang, Yang Liu, Xuexin Duan, Quanning Li, Xuejiao Chen, Mengying Xie   +8 more
doaj   +1 more source

Reference-free determination of tissue absorption coefficient by modulation transfer function characterization in spatial frequency domain

BioMedical Engineering OnLine, 2017
Background Spatial frequency domain (SFD) measurement allows rapid and non-contact wide-field imaging of the tissue optical properties, thus has become a potential tool for assessing physiological parameters and therapeutic responses during photodynamic ...
Weiting Chen, Huijuan Zhao, Tongxin Li, Panpan Yan, Kuanxin Zhao, Caixia Qi, Feng Gao   +6 more
doaj   +1 more source