A5066679952- Spectroscopy Techniques in Biomedical and Chemical Research
- Spectroscopy and Chemometric Analyses
- Force Microscopy Techniques and Applications
- Optical Imaging and Spectroscopy Techniques
- Piezoelectric Actuators and Control
- Surface and Thin Film Phenomena
- Water Quality Monitoring and Analysis
- Shape Memory Alloy Transformations
- Magnetic Properties and Applications
- Aeroelasticity and Vibration Control
- Nanofabrication and Lithography Techniques
- Photoacoustic and Ultrasonic Imaging
- Industrial Vision Systems and Defect Detection
- Advancements in Photolithography Techniques
- Image Processing Techniques and Applications
Xiamen University
2019-2023
Abstract The signal‐noise ratio plays a key role in acquiring plentiful chemical structural information the Raman spectrometer. miniature spectrometer is generally compact at expense of performance. In this work, we proposed compact, signal‐to‐noise (SNR) enhancement by optimization optical structure and noise reduction method. Concerning its structure, increasing intensity adding an off‐the‐shelf cylindrical lens. On other side algorithm, relevant automatic denoising method convolutional...
Nano positioning platform, which is widely used in micro and nano measurement field such as scanning tunneling microscope (STM), becomes an indispensable multi-dimensional driving actuator. A good platform composed of precise mechanical structure, hardware circuits signal detection, software control algorithms. However, the nonlinear hysteresis characteristics piezoelectric actuator (PZT), a common driver, affect accuracy. Therefore, it significant to solve nonlinearity for tracking. STM set...
Piezoelectric ceramic, an indispensable micro-nano actuator, has advantages of small size, high sensitivity and strong controllability, which is widely applied in various fields like processing, medicine, chemistry materials. However, its nonlinear asymmetric hysteresis features directly affect positioning accuracy. The classical generalized Prandtl-Ishlinskii models with linear symmetry operators are commonly used to deal these issues, but they still face difficulties systems. Therefore, a...
Scanning Tunnel Microscope (STM) is an advanced detection instrument that can explore the surface structural characteristics of substances on a nanoscale. As decisive component, nano positioner directly determines its scanning speed and accuracy. However, existing STM has some issues such as structure complex, susceptibility to interference nonlinearity, which may cause system uncontrollable even vibrating. Therefore, with separating measurement are designed firstly, anti-crosstalk, easy...