ECE5320 Mechatronics Assignment#01: Literature Survey on Sensors and Actuators Topic: DC Linear ActuatorsOutlineReference listTo explore further (survival pointers of web references etc)Major applicationsBasic Working PrincipleView of a Typical DC Linear ActuatorInside View of Shaft OperationA sample application in roboticsIndustrial PositioningWafer HandlingPressing ApplicationsPushing ApplicationsMajor SpecificationsMajor Specifications (Cont)LimitationsHow to choose the right oneCost InformationGood RetailersConclusionECE5320 MechatronicsAssignment#01: Literature Survey on Sensors and Actuators Assignment#01: Literature Survey on Sensors and Actuators Topic: DC Linear ActuatorsPrepared by: Brett AndersonDept. of Electrical and Computer Engineering Utah State UniversityE: ; T: (435)797-; F: (435)797-3054 (ECE Dept.)W: http://3/11/200501/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-2Outline –Reference list–To probe further–Major applications–Basic working principle illustrated–A typical sample configuration in application (application notes)–Major specifications–Limitations–And many more relevant issues in applications (such as, how to choose, cost information, where to buy etc.)01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-3Reference list•http://www.imshome.com/Product%20Datasheets/ios_motors.pdf•http://www.barringtonautomation.com/motionunits.htm•http://www.orientalmotor.com/products/limo/index.htm01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-4To explore further (survival pointers of web references etc) •There are many variations of this actuator, so it helps to narrow your specifications before attempting to find one to fit your application•Explore AC and DC versions, as well as different types of feedback options•Explore different ways to control them01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-5Major applications •Robotics•Industrial Automation•Positioning•Automotives•Low to Medium Force Applications01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-6Basic Working Principle•Includes a DC Electric Motor which drives shaft•Several types of motors are used in industry•Motor Drives a threaded shaft through an in line ball nut•Some type of feedback (typically from a resistive strip) is output to update the shaft position to the motor•The controller uses the feedback to drive the shaft to the desired position01/13/19http://www.imshome.com/Product%20Datasheets/ios_motors.pdfSlide-7View of a Typical DC Linear Actuator01/13/19http://www.imshome.com/Product%20Datasheets/ios_motors.pdfSlide-8Inside View of Shaft Operation01/13/19http://www.barringtonautomation.com/motionunits.htmSlide-9A sample application in robotics01/13/19http://www.orientalmotor.com/applications/limo_position.htmSlide-10Industrial Positioning01/13/19http://www.orientalmotor.com/applications/limo_position.htmSlide-11Wafer Handling01/13/19http://www.orientalmotor.com/applicationsSlide-12Pressing Applications01/13/19http://www.orientalmotor.com/applicationsSlide-13Pushing Applications01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-14Major Specifications•Motor Voltage supply•Position Command and Feedback Range (Typically 2-20mA in industrial applications)•Stroke length•Output Force•Position Feedback Accuracy•Operating Temperature•Speed01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-15Major Specifications (Cont)•Max Current Draw (Motor)•Max RPM of Drive Shaft•Typical Repeatability (precision)•Transverse Force•No Load Torque01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-16Limitations•Relatively Slow Moving•Not as powerful as hydraulic actuators•Bulky and Heavy•Operating Temperatures typically are below 110F01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-17How to choose the right one•Make sure that the stroke length and force rating are what is desired, there are many variations in this area•Make sure that your controller will interface easily, many are designed with the industry standard 4-20mA system, but there are a lot of variations which may be more suitable for specific needs•Find the right mounting: They come with many assorted mounting systems01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-18Cost Information•A typical 8 inch stroke linear actuator goes for about 100-150 dollars•High force requirements drive the cost up quickly•High accuracy and precision also result in high cost01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-19Good Retailers•Firgelli Automation: http://www.dclinearactuators.com/•Transmotec: http://www.transmotec.com/•Oriental Motor: http://www.orientalmotor.com/products/limo/index.htm01/13/19ECE5320 Mechatronics. Assignment#1 Survey on sensors and actuatorsSlide-20Conclusion•DC Linear actuators are great for automation•Typically they are robust, and made to interface easily with PLC’s and other commonly used controllers•Stroke, Force, Accuracy and Precision are important parameters in purchasing•They are need real fast, but supply a fair amount of torque for their
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