AI Article Synopsis
Article Abstract
Piezoelectric tube scanners are widely used in scanning probe microscopes to position the sample or the probe. Fast and accurate scanning requires the suppression of dominant low-frequency resonances as well as the compensation of dynamics-coupling effects. The present article gives a detailed description of the fully coupled tube scanner dynamics over a wide frequency range modeled by finite element (FE) analysis using the commercially available software package ANSYS. The effect of a sample mass attached to the top of the tube is investigated by considering its added mass and local stiffening. A model order reduction scheme is applied to obtain a low order model that describes the lateral and vertical deflections as well as the voltage induced on quadrant electrodes. Comparison to experimental data demonstrates a good agreement for both the full FE model and reduced order model.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/1.2826428 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method.
Sensors (Basel)
December 2024
College of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, China.
Article Synopsis
- The study develops a method for detecting debonding defects in concrete-filled steel tube (CFST) structures using piezoelectric sensors and wave analysis.
- Experimental and numerical tests compare the effectiveness of flat and oblique measurement methods, finding that flat measurements are best for height detection, while oblique measurements excel at length detection.
- A new mathematical model linking wavelet packet energy to debonding size enhances the detection process, aiding in maintenance and repair of CFST structures through improved accuracy in defect analysis.
A Compact Piezo-Drive Rotatable Scanning Tunneling Microscope in a 12 T Cryogen-Free Magnet.
Microsc Res Tech
December 2024
University of Science and Technology of China, Hefei, People's Republic of China.
Atomically resolved scanning tunneling microscope (STM) capable of in situ rotation in a narrow magnet bore has become a long-awaited but challenging technique in the field of strong correlation studies since it can introduce the orientation of the strong magnetic field as a control parameter. This article presents the design and functionality of a piezoelectrically driven rotatable STM (RSTM), operating within a 12 T cryogen-free magnet and achieving a base temperature below 1.8 K, along with spectroscopic capabilities.
View Article and Find Full Text PDFExperimental Study on the Detection of the Existence and Location of Mimicked and Unexpected Interface Debonding Defects in an Existing Rectangular CFST Column with PZT Materials.
Materials (Basel)
June 2024
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China.
Interface bonding conditions between concrete and steel materials play key roles in ensuring the composite effect and load-carrying capacity of concrete-steel composite structures such as concrete-filled steel tube (CFST) members in practice. A method using both surface wave and electromechanical impedance (EMI) measurement for detecting the existence and the location of inaccessible interface debonding defects between the concrete core and steel tube in CFST members using piezoelectric lead zirconate titanate (PZT) patches as actuators and sensors is proposed. A rectangular CFST specimen with two artificially mimicked interface debonding defects was experimentally verified using PZT patches as the actuator and sensor.
View Article and Find Full Text PDFQuick-connect scanning tunneling microscope head with nested piezoelectric coarse walkers.
Rev Sci Instrum
July 2024
Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
To meet changing research demands, new scanning tunneling microscope (STM) features must constantly evolve. We describe the design, development, and performance of a modular plug-in STM, which is compact and stable. The STM head is equipped with a quick-connect socket that is matched to a universal connector plug, enabling it to be transferred between systems.
View Article and Find Full Text PDFCMUT as a Transmitter for Microbubble-Assisted Blood-Brain Barrier Opening.
IEEE Trans Ultrason Ferroelectr Freq Control
August 2024
Focused ultrasound (FUS) combined with microbubbles (MBs) has emerged as a promising strategy for transiently opening the blood-brain barrier (BBB) to enhance drug permeability in the brain. Current FUS systems for BBB opening use piezoelectric transducers as transmitters and receivers. While capacitive micromachined ultrasonic transducers (CMUTs) have been suggested as an FUS receiver alternative due to their broad bandwidth, their capabilities as transmitters have not been investigated.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!