High bandwidth fast tool servo control

2004 ◽  
Author(s):  
Xiaodong Lu ◽  
D.L. Trumper
Keyword(s):  
Servo Control ◽  
Fast Tool Servo ◽  
High Bandwidth

A new method for high-bandwidth servo control of the power ratio between two Raman beams for cold atom interferometer

2020 ◽  
Vol 91 (10) ◽  
pp. 103109
Author(s):  
Yaning Wang ◽  
Huankai Zhang ◽  
Dongyang Xu ◽  
Shuhua Yan ◽  
Qixue Li ◽  
...  
Keyword(s):  
Cold Atom ◽  
Atom Interferometer ◽  
Servo Control ◽  
New Method ◽  
Power Ratio ◽  
High Bandwidth

Design and Analysis of a Planar Piezo-Actuated Nanopositioner with Millimeter Scale Stroke

2016 ◽  
Vol 679 ◽  
pp. 143-148
Author(s):  
Hui Tang ◽  
Jian Gao ◽  
Xin Chen ◽  
Lan Yu Zhang ◽  
Zhao He Zeng
Keyword(s):  
Degrees Of Freedom ◽  
Cross Coupling ◽  
Optimal Designs ◽  
Fast Tool Servo ◽  
Precision Manufacturing ◽  
Element Analysis ◽  
Satisfactory Performance ◽  
The Finite Element Analysis ◽  
High Bandwidth ◽  
Promising Application

In recent years, Fast Tool Servo (FTS) mechanism in precision manufacturing equipment emerges as a promising application for the piezo-actuated flexible nanopositioner. A flexible nanopositioner with large stroke, high bandwidth, high precision and multi-Degrees-of-Freedom (multi-DOFs) is really desired for this application. In order to meet this requirement, a novel 2-DOF flexible nanopositioner consists of two pairs of differential lever displacement amplifiers (DLDA) is proposed in this paper first, also, kinetostatics modeling is conducted by using the Pseudo-Rigid Body (PRB) method. After a series of mechanism optimal designs, the performance of the designed nanopositioner is verified by using the Finite Element Analysis (FEA) method. A piezoelectric (PZT) actuator with 90 µm is selected in this simulation, the experimental results indicate that the mechanism workspace can achieve around 2.1×2.1 mm2, the bandwidth can reach up to around 136 Hz, while the cross-coupling is also kept with 1%. All the results consistently prove the proposed device possesses satisfactory performance for fulfilling the practical precision manufacturing tasks.

Design and Control of Fast Tool Servo for Boring of Engine Piston Pin Holes

2006 ◽  
Author(s):  
Jason T. Wilson ◽  
Chi-Ying Lin ◽  
Tsu-Chin Tsao
Keyword(s):  
Piezoelectric Actuator ◽  
Cutting Tool ◽  
Repetitive Control ◽  
Control Design ◽  
Servo Control ◽  
Depth Of Cut ◽  
Fast Tool Servo ◽  
Engine Piston ◽  
Tool Motion ◽  
And Control

This paper presents the mechanical and servo control design of a fast tool servo for machining noncircular bores. The rotating boring bar varies the depth of cut dynamically to machine noncircular bores, such as those in engine piston gudgeon pin holes. The piezoelectric actuator driven fast tool servo has 60 micron displacement and about 400 Hz first natural frequency. The design of robust repetitive control of the fast tool servo is discussed and experimental results of cutting tool motion for generating oval bore profiles are presented.

Dual-Stage Servo Control for an Optical Pointing System

2013 ◽  
Author(s):  
Eric D. Miller ◽  
Raymond A. de Callafon
Keyword(s):  
Power Consumption ◽  
Hard Disk Drives ◽  
Hard Disk ◽  
Single Stage ◽  
Servo Control ◽  
Disk Drives ◽  
Bandwidth Control ◽  
High Bandwidth ◽  
Dual Stage ◽  
Reduced Power Consumption

In the realm of hard disk drives (HDD), dual-stage servo control has been shown to achieve increased control bandwidth and reduced power consumption compared to single-stage architectures [1]–[4]. Motivated by these results, we seek to apply dual-stage control to an analogous case of an optical pointing system, which has similar objectives of high-bandwidth control over a wide spatial range.

A Stable Autoregressive Moving Average Hysteresis Model in Flexure Fast Tool Servo Control

2019 ◽  
Vol 16 (3) ◽  
pp. 1484-1493 ◽  
Author(s):  
Jiedong Li ◽  
Hui Tang ◽  
Zelong Wu ◽  
Hongcheng Li ◽  
Guixin Zhang ◽  
...  
Keyword(s):  
Moving Average ◽  
Servo Control ◽  
Autoregressive Moving Average ◽  
Fast Tool Servo ◽  
Hysteresis Model

Fast tool servo control for ultra-precision machining at extremely low feed rates

Mechatronics ◽  
1998 ◽  
Vol 8 (4) ◽  
pp. 381-393 ◽  
Author(s):  
Sang-soon Ku ◽  
Gary Larsen ◽  
Sabri Cetinkunt
Keyword(s):  
Servo Control ◽  
Precision Machining ◽  
Fast Tool Servo ◽  
Ultra Precision

A Framework of a Model-Based Simulation System for Prediction of Surface Generation in Fast Tool Servo Machining of Optical Microstructures

2007 ◽  
Vol 339 ◽  
pp. 407-411 ◽  
Author(s):  
Chi Fai Cheung ◽  
Wing Bun Lee ◽  
Sandy To ◽  
H.F. Li ◽  
Su Juan Wang
Keyword(s):  
Diamond Tool ◽  
Simulation System ◽  
Surface Generation ◽  
Fast Tool Servo ◽  
Trial And Error ◽  
Form Accuracy ◽  
Model Based ◽  
Machine Operators ◽  
High Bandwidth ◽  
Fine Resolution

The fabrication of high-quality optical microstructural surfaces is based on fast tool servo (FTS) machining. It makes use of auxiliary piezo-electric driven servos to rapidly actuate the diamond tool with a fine resolution and a sufficiently high bandwidth for machining optical microstructures with submicrometer form accuracy and a nanometric surface finish without the need for any subsequent post processing. However, the achievement of a superior mirror finish and form accuracy still depends largely on the experience and skills of the machine operators, acquired through an expensive trial-and-error approach to using new materials, new mircostructural surface designs, or new machine tools. As a result, this paper, a model-based simulation system is presented for the optimization of surface quality in the FTS machining of optical microstructures. Preliminary experimental work and the results are also presented.

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