Phase-delay induced variation of synchronization bandwidth and frequency stability in a micromechanical oscillator
Sign Up to like & getrecommendations! Published in 2021 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-021-06783-8
Abstract: Phase feedback is commonly utilized to set up a synchronized MEMS oscillator for high performance sensor application. It is a consensus that the synchronization region varies with phase delay with an ‘Anti-U’ mode. In this… read more here.
Keywords: synchronization bandwidth; synchronization; phase delay;
Effects of both the drive- and sense-mode circuit phase delay on MEMS gyroscope performance and real-time suppression of the residual fluctuation phase error
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Micromechanics and Microengineering"
DOI: 10.1088/1361-6439/abec1b
Abstract: This work analyses circuit phase delay for carrier-modulation MEMS capacitive gyroscopes. The temperature-dependent circuit phase delay is a major source of gyroscope output drift, which deteriorates the gyroscope bias instability (BI) and angle random walk… read more here.
Keywords: circuit phase; phase; phase delay; mode ... See more keywords
Linear phase delay detection method for optical voltage transformer based on S-wave plate
Sign Up to like & getrecommendations! Published in 2021 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/abf8ee
Abstract: To achieve linear measurement of electro-optic phase delay and improve the accuracy and measurement range of the optical voltage transducer (OVT), this paper proposes a linear phase delay detection method for an optical voltage transformer… read more here.
Keywords: optical voltage; phase; phase delay; wave plate ... See more keywords
Nanometer Precision Time-Stretch Femtosecond Laser Metrology Using Phase Delay Retrieval
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2021.3079127
Abstract: A femtosecond laser metrology with nanometer precision and dynamic range of centimeter incorporating time-stretch interferometry and phase delay retrieval method is proposed and experimentally demonstrated. Displacement encoded phase-sensitive temporal interferogram is generated when phase stabilized… read more here.
Keywords: time; femtosecond laser; metrology; time stretch ... See more keywords
A Fast Instantaneous Power Calculation Algorithm for Single-Phase Rectifiers Based on Arbitrary Phase-Delay Method
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Industry Applications"
DOI: 10.1109/tia.2019.2906580
Abstract: The instantaneous power for a three-phase rectifier can be calculated directly in the orthogonal coordinate system via coordinate transformation. However, it is difficult to calculate the instantaneous power directly for a single-phase rectifier due to… read more here.
Keywords: instantaneous power; arbitrary phase; power; phase delay ... See more keywords
Sensorless Fault-Tolerant Control With Phase Delay Compensation for Aerospace FTPMSM Drives With Phase Open-Circuit and Short-Circuit Faults
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2020.2988231
Abstract: To enhance the reliability of fault-tolerant permanent-magnet synchronous motor (FTPMSM) drives, a new sensorless control based on the robust observer, nonorthogonal phase-locked loop (PLL), and variable phase delay compensation is proposed, which can guarantee the… read more here.
Keywords: control; ftpmsm; phase delay; circuit ... See more keywords
An Optical Voltage Sensor Based on Wedge Interference
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2017.2756798
Abstract: The optical voltage sensor (OVS) based on the Pockels effect and its light intensity detection mode has a limitation of half-wave voltage and optical power correlation. In this paper, a new type of OVS which… read more here.
Keywords: voltage; phase delay; mode; optical voltage ... See more keywords
Fourier-Series-Based Phase Delay Compensation of Brushless DC Motor Systems
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Power Electronics"
DOI: 10.1109/tpel.2017.2669040
Abstract: Brushless direct-current (BLDC) motors are being regarded as a standard of actuation methods for precise and heavy-duty applications, such as robots and vehicles. To improve the efficiency and torque performance of the BLDC motors, various… read more here.
Keywords: fourier series; phase delay; motor; series based ... See more keywords
Displacement calculation method for homodyne interferometers based on spatial phase delay of beams
Sign Up to like & getrecommendations! Published in 2022 at "Optical Engineering"
DOI: 10.1117/1.oe.61.1.014106
Abstract: Abstract. Based on the spatial phase delay of beams, a displacement measurement method is proposed for homodyne interferometers. In this method, two detectors are arranged in the interference spot to collect signals. Based on the… read more here.
Keywords: method; spatial phase; based spatial; phase delay ... See more keywords
High-flexibility and high-accuracy phase delay calibration method for MEMS-based fringe projection systems.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.478474
Abstract: Microelectromechanical system (MEMS) mirror based laser beam scanning (LBS) projectors for fringe projection profilometry (FPP) are becoming increasingly popular attributing to their small size and low cost. However, the initial phase of the scanning MEMS… read more here.
Keywords: calibration method; phase delay; fringe projection; phase ... See more keywords
Online Compensation of Phase Delay Error Based on P-F Characteristic for MEMS Vibratory Gyroscopes
Sign Up to like & getrecommendations! Published in 2022 at "Micromachines"
DOI: 10.3390/mi13050647
Abstract: In this paper, an online compensation method of phase delay error based on a Phase-Frequency (P-F) characteristic has been proposed for MEMS Coriolis Vibratory Gyroscopes (CVGs). At first, the influences of phase delay were investigated… read more here.
Keywords: online compensation; phase delay; delay error; phase ... See more keywords