scholarly journals Optimizing Scanning Mirror System Performance using Solid State Piezoelectric Actuators

1990 ◽  
Author(s):  
Michael G. Harris ◽  
Robert J. Martin ◽  
Thomas J. Tomasetti
Keyword(s):  
Solid State ◽  
System Performance ◽  
Piezoelectric Actuators ◽  
Mirror System ◽  
Scanning Mirror

Detection of single gold nanoparticles using spatial modulation spectroscopy implemented with a galvo-scanning mirror system

2013 ◽  
Vol 52 (32) ◽  
pp. 7806 ◽  
Author(s):  
Mary Sajini Devadas ◽  
Zhongming Li ◽  
Todd A. Major ◽  
Shun Shang Lo ◽  
Nicolas Havard ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Mirror System ◽  
Spatial Modulation ◽  
Modulation Spectroscopy ◽  
Scanning Mirror

Compact Drive Electronics for Solid-State Actuators

2000 ◽  
Author(s):  
Jeffrey S. N. Paine ◽  
David S. Bennett ◽  
Carlos E. Cuadros
Keyword(s):  
Solid State ◽  
Power Electronics ◽  
Piezoelectric Material ◽  
Piezoelectric Actuator ◽  
Power Dissipation ◽  
Piezoelectric Materials ◽  
Piezoelectric Actuators ◽  
Linear Amplifier ◽  
Overall Efficiency ◽  
Electronics Packages

Abstract As piezoelectric actuators are developed for high strokes and/or high force applications, the amount of piezoelectric material used in the actuator must also increase. Reducing the size of drive electronics becomes difficult using traditional linear power electronics packages when applications require as much as 40 μF of piezoelectric load. In order to efficiently drive piezoelectric actuator systems, bi-directional systems (drivers that recover the energy put into the piezoelectric capacitor) must be used. Since less than 10% of the power going into the piezoelectric actuator is real versus the large reactive load used to power the piezoelectric materials, bidirectional systems have a much higher efficiency. A comparison is made between traditional linear and PWM amplifier systems and tailored piezoelectric bi-directional driver systems. Bi-directional systems have power dissipation levels up to 1/8th those of traditional linear amplifier systems. In the course of the research both linear and PWM concepts were investigated. A rationale for comparing the overall efficiency of drive electronics systems is presented. Some innovative efficient concepts for piezoelectric system drivers are presented and discussed.

Ten Years of Digital Computer Control of Combustion Turbines

1981 ◽  
Vol 103 (1) ◽  
pp. 54-59
Author(s):  
R. A. Yannone ◽  
J. F. Reuther
Keyword(s):  
Solid State ◽  
Control Systems ◽  
Digital Computer ◽  
System Performance ◽  
State Of The Art ◽  
Computer Control ◽  
Design Criteria ◽  
Total System ◽  
Data Handling ◽  
Historic Data

This paper establishes the design criteria for the digital computer control systems first produced in 1969, and currently in the tenth year of history for startup, control, and monitoring of combustion turbine units in the 25–125 MW range, reviews the advantages of digital control and the fall-out obtained from the application of an advanced state-of-the-art control in the area of diagnostics and historic data handling, reviews the integration of the digital computer back-up system, composed of a solid-state fuel scheduler and logic sequencer provided for total system performance and reliability, and discusses the feasibility of a computer retrofit using existing software with the latest state-of-the-art microprocessor emulator.

Simulation of 100 kW Solid-State Laser Relay Mirror System

2009 ◽  
Vol 36 (6) ◽  
pp. 1392-1396
Author(s):  
吴慧云 Wu Huiyun ◽  
陈金宝 Chen Jinbao ◽  
吴武明 Wu Wuming ◽  
许晓军 Xu Xiaojun
Keyword(s):  
Solid State ◽  
Solid State Laser ◽  
Mirror System ◽  
State Laser

Identification of linear approximation for scanning mirror system of aerial camera

2013 ◽  
Vol 21 (7) ◽  
pp. 1771-1779
Author(s):  
李军 LI Jun ◽  
修吉宏 XIU Ji-hong ◽  
黄浦 HUANG Pu ◽  
李友一 LI You-yi
Keyword(s):  
Linear Approximation ◽  
Mirror System ◽  
Scanning Mirror

Exposure uniformity analysis and optimization for scanning mirror system in Hefei lithography beam line

2001 ◽  
Author(s):  
Congliang Guo ◽  
Chuanshi Yin ◽  
Tonghui Liu ◽  
Aijuan Zhong ◽  
Shinan Qian
Keyword(s):  
Beam Line ◽  
Mirror System ◽  
Scanning Mirror

Elman neural network–based identification of rate-dependent hysteresis in piezoelectric actuators

2020 ◽  
Vol 31 (7) ◽  
pp. 980-989
Author(s):  
Xinlong Zhao ◽  
Shuai Shen ◽  
Liangcai Su ◽  
Xiuxing Yin
Keyword(s):  
Neural Network ◽  
Dynamic Model ◽  
Dynamic Property ◽  
System Performance ◽  
Piezoelectric Actuators ◽  
Hysteresis Model ◽  
Elman Neural Network ◽  
Rate Dependent ◽  
Nanoscale System ◽  
Hysteresis Nonlinearity

Rate-dependent hysteresis nonlinearity in piezoelectric actuators severely limits micro- and nanoscale system performance. It is necessary to establish a dynamic model to describe the full behavior of rate-dependent hysteresis. In this article, the Elman neural network–based hysteresis model is developed for piezoelectric actuators. An improved dynamic hysteretic operator is proposed to transform the multi-valued mapping of hysteresis into one-to-one mapping on a newly constructed expanded input space. Then, Elman neural network incorporated with the improved dynamic hysteretic operator is utilized to approximate the behavior of rate-dependent hysteresis. The combination of Elman neural network and the improved dynamic hysteretic operator can dually embody the dynamic property and is capable of fully extracting the characteristics of rate-dependent hysteresis. The experimental results are presented to illustrate the potential of the proposed modeling technique.

Sign in / Sign up

Export Citation Format

Share Document