A5091544825- Advanced Measurement and Metrology Techniques
- Scientific Measurement and Uncertainty Evaluation
- Optical Systems and Laser Technology
- Advanced MEMS and NEMS Technologies
- Sensor Technology and Measurement Systems
- Advanced Sensor Technologies Research
- Target Tracking and Data Fusion in Sensor Networks
- Flow Measurement and Analysis
- Astronomical Observations and Instrumentation
Hefei University of Technology
2019-2023
The structural deformations caused by environmental changes in temperature, vibration, and other factors are harmful to the stability of high precision measurement equipment. optimal design method a 2D optoelectronic angle sensor have been investigated this study. drift has studied error model achieved. Key components sensitive thermal vibrational effects were identified sensitivity analysis simulation. mounts key analyzed using finite element software optimized based on concept symmetric...
A sensitivity- and resolution-improving method for a low-frequency micro-vibration accelerometer is presented in this paper. sensitivity model of the measurement system derived established. The key parameters that limit resolution were identified through coefficient analysis method. structural signal process then optimized. Experimental results show has improved from 1.10 V/(m/s2) to 19.21 V/(m/s2), 1.47 mm/s2 0.21 mm/s2. lowest working frequency range expanded 1 Hz 0.7 Hz. effective cheap...
Uncertainty evaluation for unknown distribution data is a key problem to be solved in uncertainty theory. To evaluate the measurement of with distributions, novel method based on particle filter (PF) and beta proposed this paper. A wide adaptability was adopted as type results, parameters were taken estimated, state-space model established. The PF method, suitable non-Gaussian data, utilized obtain estimates according results. Finally, best results their calculated using parameters....
The accuracy of measurement instruments, as well that their components, gradually declines time goes on. Due to different loss mechanisms and the allowable values, lifetimes a whole system its components are generally nonuniform, which lead waste resources costs. In this paper, novel design method based on uniform lifetime principle is presented avoid resources. After giving determining uniformity weights, optimal models established, sequential quadratic programming (SQP) employed solve...