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Piezoelectric Operated Actuators And Motors - A Global Industry And Market Analysis

Innovative Research and Products (iRAP), Inc.
December 1, 2006
114 Pages - SKU: IRAP1469838

Abstract Table of Contents Search inside this report Related Reports

Countries covered: Global

Ultrasonic motors (USMs) belong to the class of piezoelectric motors. In this work the term USM will be used for the motor only (power electronics and closed loop control are not included). The system composed of the motor, power electronics and the closed loop control will be called the ultrasonic actuator or piezoelectric actuator. The working principle of these motors has been well known for at least 50 years. However, they gained widespread interest with the influential work of Sashida in 1982. Before that time, piezoceramic materials with high conversion efficiency and fast electronic power control of ultrasonic vibrations were not available.

Through their specific advantages compared to conventional electro-magnetic motors, USMs fill a gap in certain actuator applications. A key advantage of USMs over electromagnetic motors is their compactness, i.e. their high stall torque-mass ratio and high torque at low rotational speed, often making speed-reducing gears superfluous. Additionally, with no voltage applied, an inherent holding torque is present due to the frictional driving mechanism. It is also worthwhile to mention that their compactness and the high frequency electrical excitation make quick responses possible. Besides that, USMs also offer a high potential for miniaturization. These actuators produce no magnetic field since the excitation is quasi-electrostatic.

Additional Information

New applications are emerging for piezoelectric operated actuators and motors in applications including aircraft, automobile hydraulics and drug delivery. Among piezoelectric devices, piezoelectric actuators produce a small displacement with a high force capability when voltage is applied. They are used mainly in ultra-precise positioning and in the generation and handling of high forces or pressures, whereas piezoelectric motors use a piezoelectric ceramic element to produce ultrasonic vibrations in a stator structure. The elliptical movements of the stator are converted into the movement of a slider that is pressed into frictional contact with the stator. Depending on the stator's design, the resulting movement can be either rotational or linear.

The virtually unlimited resolution and extremely fast response of piezo devices have made them a corner-stone of ultraprecision applications from nanometrology to nanomanipulation. Today a large variety of piezo-based positioning systems is available, from simple open-loop actuators, to complex flexure-guided nanopositioning systems and piezo linear motors. All piezoelectric drives are ceramic-based, and can operate in a vacuum; they do not produce magnetic fields nor are they influenced by them.

It is actually difficult to differentiate the market between piezoelectric operated motors and piezoelectric operated actuators as these variants are used for same application in common products. For example in a digital camera, the auto-focus mechanism uses a piezoelectric operated motor but in camera phones, the same mechanism is operated by piezoelectric operated actuators.

Commercialization of piezoelectric operated actuators and motors is likely to proceed in those markets where the specific advantages of high torque, high precision and lack of magnetic interference are particularly useful. When the costs can be lowered to competitive levels and remaining technical problems such as frictional wear can be solved, piezoelectric motors may also become candidates in areas such as automotive accessories, where very high volume markets are possible.

Piezoelectric actuators have typically enjoyed wide use in semiconductor production and industrial devices requiring precision control. However, in recent years, the use of piezoelectric actuators in digital cameras and camera-equipped cell phones has grown rapidly. Driven by a focus on advanced functionality, the digital camera market has augmented the number of pixels in order to achieve improved resolution, resulting in an increase in compact products with zoom capabilities of 10x and greater. This invariably has led to a need for a stabilizing feature that prevents the blurring caused by hand movement. Piezoelectric actuators provide stabilizing compensation, as well as auto-focus lens drives and zoom features for various uses.

The Summary Table A shows the market in current dollars for the piezoelectric operated actuators and motors for the years 2006 and 2011. The table also shows the share of each market segment. The two summary figures depict market shares for 2006 and 2011, respectively.

Introduction: Study Goal And Objectives; Reasons For Doing The Study; Contributions Of The Study; Scope And Format; Methodology; Information Sources; Target Audience For The Study; Author'S Credentials
Executive Summary: Summary Table A: Global Market Size/Percentage Share For Piezoelectric Operated Actuators And Motors According To Type, 2006 And 2011; Summary Figure A: Global Percentage Share For Piezoelectric Operated Actuators And Motors According To Type, 2006 And 2011; Summary Table B: North American And Global Market Of Piezoelectric Driven Motors Actuators 2006 And 2011 ($ Billion); Summary Figure B: Illustration Of North American And Global Market For Piezoelectric Operated Actuators And Motors, 2006 And 2011
Industry Overview: Industry Dynamics; Industry Dynamics (Continued); Industry Structure; Global Markets
Technology Overview: Piezo Mechanics; Symbols And Definitions; Piezoelectric Constants; Piezo Theory; The Piezoelectric Effect In Ceramic Materials; Piezoelectric Materials; Types Of Piezoelectric Actuators; Types Of Piezoelectric Motors; Materials For Piezo Actuators And Motors; Electrode Materials; Pzt Material Characteristics; Hysteresis; Creep; Extension Under Load; Power Dissipation; Operation Under Reverse Bias; Linearity; Thermal Properties And Temperature Coefficients
Product Types, Construction And Characteristics: Comparing Technologies; Piezoelectric Operated Actuators And Motors; Piezoelectric Actuators; Piezoelectric Motors; Product Categories; Motors (For Camera Phones) - Squiggle Motors; Piezoelectric Operated Motors (Ultrasonic, Outside Dia 30 To 80 Mm) For Autofocus Of Digital Camera; Classification Of Ultrasonic Motors - By Excitation; Key Characterstics Of Ultrasonic Motors; Applications For Ultrasonic Motors; Mutilayer Actuators; Construction; Characteristics; Ceramic Servo Motors; Construction; X-y Stage For Microscope Applications And Digital Slide Imaging Systems; Characteristics; Piezo Bimorph Actuators; Construction; Characteristics; Usage; Reliability Qualification Testing; Applications Of Piezoelectric Operated Actuators And Motors (Ultrasonic); Data Storage; High Volume Applications; Semiconductors, Microelectronics Manufacturing; High Volume Applications; Precision Mechanics; Welding; Small Pumps; Automatic Assembly Tools; Wafer Handling / Assembly Robots; High Volume Applications; Life Science And Medical Technology; Biomedical Applications; High Volume Applications; Micro Dispensers; Portable Analyzers; Ultrasonic Plaster Cast Cutter; Optics, Photonics, Nanometrology; Autofocus And Zoom Cameras, Camcorders And Cell Phones; High Volume Applications; Robots And Toys; Pantograph Of A Model-locomotive; High Volume Applications; Hvac Building Control Systems; High Volume Applications; Air Registers; Interior Lighting
Industry Characteristics: Market Trends; Miniaturization Of Motors; Volume Production Of Multilayer Piezo Actuators; Development Of Traveling Wave Motors; Hybrid Designs; Motor Optimization; Market Dynamics; Competition; Mergers, Acquisitions And Divestitures
Global Market For Piezoelectric Operated Actuators And Motors: Business Models And Players; Piezoelectric Operated Actuators And Motors Market; Market Dynamics And Trends; Market Size And Share; Regional Trends; Market For Five Types Of Piezoelectric Operated Actuators And Motors; Motors For Camera Phones (Outside Dia Less Than 5 Mm); Market Players; Traveling Wave-type Ultrasonic Motors For Autofocus Of Digital Cameras (Outside Dia Equal To At Least 30 Mm); Market Players; Multilayer Piezoelectric Operated Actuators And Motors (D33 And D31 Mode); Market Players; Ceramic Servo Motors; Market Players; Bimorph Piezo Actuators; Market Players; Emerging Trends In Piezoelectric Actuators And Motors; Emerging Trends In Piezoelectric Actuators And Motors (Continued)
Patents And Patent Analysis: List Of Patents; Patent Analysis; Patents For Piezoelectric Operated Actuators And Ultrasonic Motors; International Overview Of U.S. Patent Activity In Piezoelectric Operated Actuators/Ultrasonic Motors; International Overview Of U.S. Patent Activity In Piezoelectric Operated Actuators/Ultrasonic Motors (Continued)
Company Profiles: Baldor Uk Ltd.; Canon Precision, Inc.; Sumitomo Metal Inc. (Smi) Electronics Devices Inc.; University Of Missouri-rolla
LIST OF TABLES
Summary Table A:: Global Market Size/Percentage Share For Piezoelectric Operated Actuators And Motors According To Type, 2006 And 2011
Summary Table B:: North American And Global Market Of Piezoelectric Driven Motors Actuators 2006 And 2011; Table 1: General Piezo Symbols; Table 2: Formulas Used In Piezoelectric Technology; Table 3: Material Constants Of Piezoceramic Materials Used In Piezoelectric Driven Actuators And Motors; Table 4: Commercial Grade Of Materials Used In Piezoelectric Driven Actuators And Motors; Table 5: Piezoelectric And Electromagnetic Device Comparison; Table 6: Piezoelectric Motor (Traveling Wave) Typical Commercial Sizes; Table 7: Key Piezoelectric Motor Characteristics; Table 8: Reliability Qualification Testing Of Piezoelectric Driven Actuators And Motors; Table 9: Acquisition Deals Among Manufacturers Of Piezoelectric Motors And Actuators From 2000 To 2006; Table 10: Summary Of Global Market Piezoelectric Driven Actuator And Motors By Application Through 2011 (Us$ Billion); Table 11: Market Share According To Applications For Piezoelectric Driven Actuators And Motors, 2006 And 2011; Table 12: Summary Of Market Of Piezoelectric Driven Motors Actuators By Region Through 2011 ($ Billion); Table 13: Summary Of Global Market For Piezoelectric Driven Actuators And Motors By Type Through 2011; ($ Billions); Table 14: Forecast For Autofocus Camera Phones Using Piezoelectric Motors; Table 15: Market Share Of Top Five Manufacturers Of Piezoelectric Operated Actuators/Motors (Camera Phones) 2006; Table 16: Market Share Of Top Five Manufacturers Of Piezoelectric Operated Actuators And Motors (Traveling Wave Type Ultrasonic Motors) 2006; Table 17: Market Share Of Top Manufacturers Of Piezoelectric Operated Actuators And Motors (Multilayer Actuators) 2006; Table 18: Market Share Of Top Manufacturers Of Piezoelectric Operated Actuators And Motors (Ceramic Servo Motors) 2006; Table 19: Market Share Of Top Manufacturers Of Piezoelectric Operated Actuators And Motors (Bimorph Bending Type) 2006; Table 20: Number Of U.S. Patents Granted To Companies In The Ultrasonic Motors And Piezoelectric Actuator Markets From 2001 Through 2005; Table 21: Organizations Awarded Single U.S. Patents In The Ultrasonic Motors And Piezoelectric Actuator Market From 2001 Through 2005; Table 22: U.S. Patents Granted By Assigned Country/Region For Ultrasonic Motors And Piezoelectric Actuators From Jan. 2001 To 2005; Table 23: Company Product Reference Of Piezoelectric Actuator And Motors
LIST OF FIGURES
Summary Figure A:: Global Percentage Share For Piezoelectric Operated Actuators And Motors According To Type, 2006 And 2011
Summary Figure B:: Illustration Of North American And Global Market For Piezoelectric Operated Actuators And Motors, 2006 And 2011; Figure 1: Designation Of The Axes And Directions Of Deformation; Figure 2: Effect On Cell Of Piezoelectric Material Before And After Poling (Dc Field Applied); Figure 3: Effect On Cell Of Piezoelectric Material Before And After Poling (Dc Field Applied); Figure 4: Electrode Materials Used In Piezoelectric Actuators; Figure 5: Hysteresis Behavior Of Piezoelectric Material; Figure 6: Summary Of Global Market For Piezoelectric Driven Actuators And Motors By Application, 2006 And 2011; Figure 7: Regional Percentages Of Market Share For Piezoelectric Driven Actuators And Motors, 2006 And 2011; Figure 8: Top Companies Granted U.S. Patents For Ultrasonic Motors And Piezoelectric Actuators From 2001 Through 2005

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