Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Lieshan Zhang"'
Publikováno v:
Photonics, Vol 11, Iss 3, p 200 (2024)
A sinusoidal phase modulation laser interferometer is proposed to detect water surface acoustic waves excited by underwater acoustic radiation, and an improved PGC-Arctan demodulation algorithm that combines prenormalization and Lissajous ellipse fit
Externí odkaz:
https://doaj.org/article/13a87ba31b6f4fe98567332422dbf222
Publikováno v:
Sensors, Vol 23, Iss 10, p 4787 (2023)
Damping is an important factor contributing to errors in the measurement of rotational inertia using the torsion pendulum method. Identifying the system damping allows for minimizing the measurement errors of rotational inertia, and accurate continuo
Externí odkaz:
https://doaj.org/article/1c3aa328ad17489ebad4d79676653f5c
Publikováno v:
IET Science, Measurement & Technology, Vol 15, Iss 2, Pp 109-119 (2021)
Abstract Oscillation method is the most effective approach to determine the inertia properties of rigid bodies. This paper proposes a new signal processing method to determine the moment of inertia (MoI) accurately in the presence of high frictional
Externí odkaz:
https://doaj.org/article/9a922c9cb5c44a0a9ec7540efa747758
Publikováno v:
Applied Sciences, Vol 12, Iss 10, p 5277 (2022)
To address the lack of fast and high-precision in situ measurement of large-sized pipes in current industrial applications, a pipe-diameter-measurement method based on stereo vision is designed in this paper. By using multiple sets of binocular camer
Externí odkaz:
https://doaj.org/article/3b8b50d80b734d6da3a5d567feeef243
Publikováno v:
Journal of Vibration Engineering & Technologies. 11:1197-1209
Publikováno v:
IET Science, Measurement & Technology, Vol 15, Iss 2, Pp 109-119 (2021)
Oscillation method is the most effective approach to determine the inertia properties of rigid bodies. This paper proposes a new signal processing method to determine the moment of inertia (MoI) accurately in the presence of high frictional damping w
Publikováno v:
International Conference on Sensors and Instruments (ICSI 2021).
At present, it is difficult for the aquaculture industry to monitor and manage water quality. In view of this situation, this paper put forward a NB-IoT-based unmanned surface vehicle system for water quality monitoring of aquaculture pond. In the de
Publikováno v:
Applied Acoustics. 183:108315
When acoustic waves reach an air–solid interface, surface acoustic waves will be generated, and such waves may carry important acoustic information. In order to detect acoustic waves at air–solid interface, a non-contact detection method based on
Publikováno v:
Optics Communications. 495:127114
A novel phase carrier generation method for a sinusoidal phase-modulating laser homodyne interferometric vibrometer is proposed in this paper. In this homodyne interferometer scheme, phase modulation of the reference arm is achieved with liquid surfa
Publikováno v:
Measurement Science and Technology. 32:025005
Sensor noise, such as low-frequency drift and white noise, often causes large measurement errors when an oscillation method is used to determine rotational inertia of a rigid body. A demodulation algorithm based on differentiation and resonance frequ