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Dual-Laser Goniometer: A Flexible Optical Angular Sensor for Joint Angle Measurement
IEEE transactions on industrial electronics (1982. Print), 2021This article presents a flexible optical goniometer for the measurement of single-axis joint angular displacement. The design philosophy behind the apparatus lies that the agent's angular displacement is converted to the laser's distance measurement ...
Xiaoguo Du, Qijun Chen
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Three-degree-of-freedom autocollimator with large angle-measurement range
Measurement science and technology, 2021Autocollimators (ACs) are primarily used for two-dimension measurement with small angle. A three-dimensional AC (3D-AC) with a large measurement range and capable of 3D angle measurement is proposed based on a modified cube corner reflector (MCCR).
Renpu Li +8 more
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Evaluation of Angle Measurement Uncertainty of Fiber Optic Gyroscope Based on Monte Carlo Method
IEEE Transactions on Instrumentation and Measurement, 2021Research on the transfer and traceability of a dynamic angle has great value in the field of measurement. The fiber optic gyroscope (FOG), as a high-precision angular velocity sensor, has broad prospects in this application.
Jiapeng Mou +3 more
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Improving the angle measurement accuracy of circular grating.
Review of Scientific Instruments, 2020Circular grating usually served as the angle displacement feedback element in a precision turntable, and its measurement accuracy is very important. Installation errors always exist in the measurement system, which can cause angle measurement errors ...
Gang Chen
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IEEE Transactions on Aerospace and Electronic Systems, 2020
This paper proposes a nonlinear discrete-time sliding mode based tension control for deployment of tethered space robot with only length and angle measurements.
Zhiqiang Ma, Panfeng Huang
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This paper proposes a nonlinear discrete-time sliding mode based tension control for deployment of tethered space robot with only length and angle measurements.
Zhiqiang Ma, Panfeng Huang
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Deep Learning Based Algorithm For Automatic Scoliosis Angle Measurement
International Conference on Control, Automation and Information Sciences, 2020Scoliosis is a common back disease which identifies with an irregular spinal condition. In this case, the spine has a side curvature with an angle. Practically, the standard angle estimation method is done by measuring the Cobb angle for the curvature ...
Roa Alharbi +5 more
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Journal of Biomedical Engineering, 1985
Lateral radiographs of the rectum and anus were taken in 90 children with chronic idiopathic constipation. A computer program was developed to obtain an objective quantitative assessment of the anorectal angle; it averaged 120 degrees at rest, decreased during forceful anal contraction and increased during defecation.
M, Hero +6 more
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Lateral radiographs of the rectum and anus were taken in 90 children with chronic idiopathic constipation. A computer program was developed to obtain an objective quantitative assessment of the anorectal angle; it averaged 120 degrees at rest, decreased during forceful anal contraction and increased during defecation.
M, Hero +6 more
openaire +2 more sources
Measurement of Occipitocervical Angle
Spine, 2004This study compared the reliability of 3 techniques used to measure alignment between the occiput and cervical spine.Intraobserver and interobserver intraclass correlation coefficient were computed to determine the most reliable method to measure occipitocervical angle.No studies have been performed comparing occipitocervical angle measurement ...
Naoki, Shoda +7 more
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Advanced Materials Interfaces, 2019
Surface wettability, a property that governs the interaction between the solid and liquid phases, is central in various biological systems and technological applications.
Chun Haow Kung +3 more
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Surface wettability, a property that governs the interaction between the solid and liquid phases, is central in various biological systems and technological applications.
Chun Haow Kung +3 more
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Interferometric Measurement of Angles
Applied Optics, 1970A new interferometric device for measuring small angles or rotations with high accuracy is described. This instrument works by counting fringes formed by the rotation of a flat-parallel plate of glass illuminated with a collimated beam from a gas laser. Some possible applications are given.
D, Malacara, O, Harris
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