Results 21 to 30 of about 13,324 (245)
Closed-Loop Control and Output Stability Analysis of a Micromechanical Resonant Accelerometer
Micromachines, 2022 In this study, a dynamic equation for a micromechanical resonant accelerometer based on electrostatic stiffness is analyzed, and the parameters influencing sensitivity are obtained.
Heng Liu, Yu Zhang, Jiale Wu
doaj +1 more source
A flexible device to produce a gas stream with a precisely controlled water vapour mixing ratio and isotope composition based on microdrop dispensing technology [PDF]
Atmospheric Measurement Techniques, 2023 Here we describe a versatile device to produce a gas stream with a precisely controlled water vapour mixing ratio and stable water isotope composition based on microdrop dispensing technology. To produce a moist airstream, the microdrop dispensing
H. Sodemann +11 more
doaj +1 more source
Random error identification for MEMS gyro in coal mine underground
Gong-kuang zidonghua, 2019 Aiming at problems of unrevealing potential error source, hardly separating specific random error and long data collection time of common random error identification methods, Allan variance analysis method was used to identify random error of MEMS gyro ...
CONG Lin, WANG Xiaolong, YAN Bi
doaj +1 more source
Characterization and Benchmark of a Novel Capacitive and Fluidic Inclination Sensor
Sensors, 2021 In this paper, a fluidic capacitive inclination sensor is presented and compared to three types of silicon-based microelectromechanical system (MEMS) accelerometers. MEMS accelerometers are commonly used for tilt measurement.
Adrian Schwenck +2 more
doaj +1 more source
Extending Non-Ambiguity Range of Dual-Comb Ranging for a Mobile Target Based on FPGA
Sensors, 2022 Dual-comb ranging (DCR) is an important method in absolute distance ranging because of its high precision, fast acquisition rate, and large measuring range. DCR needs to obtain precise results during distance measurements for a mobile target.
Ruoyu Liu +7 more
doaj +1 more source
Earth, Planets and Space, 2020 Allan variances and its related methods are commonly used to analyse a sequence of data in the time domain to measure frequency stability of oscillators. It allows for a determination of noise type as a function of the averaging time.
Kamil Maciuk +3 more
doaj +1 more source
Allan Deviation of Atomic Clock Frequency Corrections: A New Diagnostic Tool for Characterizing Clock Disturbances [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2021 As atomic clocks and frequency standards are increasingly operated in situations where they are exposed to environmental disturbances, it becomes more necessary to understand how variations of each clock component impact the clock output, in particular the local oscillator (LO).
Daphna G. Enzer +2 more
openaire +2 more sources
Results in Physics, 2023 Atom interferometry-based sensors have demonstrated remarkable precision, making them attractive for diverse applications compared to traditional sensors. However, practical experiments inevitably encounter noise, which limits precision.
Huai-Yu Zhu +3 more
doaj +1 more source
Sensors, 2016 Micro and nano electromechanical resonators have been widely used as single or multiple-mass detection sensors. Smaller devices with higher resonance frequencies and lower masses offer higher mass responsivities but suffer from lower frequency stability.
Francesc Torres +4 more
doaj +1 more source
Open-path sensor based on QCL for atmospheric N2O measurement
Results in Physics, 2021 In this manuscript, a compact open-path gas sensor is developed for detection of atmospheric N2O. In such sensor, the wavelength modulation spectroscopy with 1f-normalized WMS detection strategy is employed to improve the detection sensitivity and ...
Yurong Zhang +4 more
doaj +1 more source