Motion Control – High Torque Rotary Voice Coil Actuators!

Linear Motion Control - H2W High Torque Voice Coil Actuators

 

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Santa Clarita, CA —– Linear Motion Control – H2W Technologies has developed several high torque rotary voice coil actuators, otherwise known as a limited angle torque motors or LATs. The model TWR-015-346-2RC was designed to allow for a low moving mass (68 grams per coil) and inertia, as well as dual independent coils to allow for two independent motion profiles or couple the coils together to double the torque output. This rotary voice coil actuator can generate a continuous torque of 185 in-oz [1.29 N-m] and a peak torque of 555 in-oz [3.88 N-m] at a duty cycle of 10% (i.e. 1 second on, and 9 seconds off) in each coil on a 4 inch [102 mm] rotation arm. By coupling the coils together, the continuous torque doubles to 370 in-oz [2.58 N-m] with a peak torque of 1110 in-oz [7.75 N-m] at a 10% duty cycle.

The TWR-015-346-2RC has a total angular displacement of 15 degrees [0.26 radians] and a motor constant of 34.4 in-oz/sqrt(watt) [0.24 N-m/sqrt(watt)] per coil or when coupled together the motor constant is 48.5 in-oz/sqrt(watt) [0.34 N-m/sqrt(watt)]. The voice coil motor requires 1.33 amps of continuous current per coil and 4.0 amps of peak current per coil to generate the specified forces. The actuator fits in and envelope of 4.37 in [111.1 mm] x 2.99 in [75.9 mm] x 1.64 in [41.5 mm].

The moving coil design ensures a hysteresis free movement as the coil is wet wound and self-supported, and the non-commutated coil allows for ripple-free motion and no cogging. The voice coil actuator has been designed with mounting provisions in the magnet and coil assemblies. This allows for the integration of a bearing system to maintain the clearances between the coil and permanent magnetic field assemblies. The rotary voice coil actuator is ideal for applications requiring high torque and high-speed applications. Examples of such applications are driving a gimbal axis in scanning applications as well as providing stabilizing torques for image stabilization. More examples of H2W’s Rotary Voice Coils are available on our website: https://www.h2wtech.com/category/rotary-voicecoil-actuators

Technology

Simply stated, a current carrying conductor placed in a magnetic field will have a force (or torque) exerted upon it. This force is proportional to the direction and magnitude of the current and the flux density field. Since the permanent magnet flux density field is fixed, the direction of the rotation depends on the polarity of input current and the amount of torque that is produced is directly proportional to the magnitude of the input current.

Linear Motion Control - H2W High Torque Voice Coil Actuators - Drawing

 

 

 

 

 

 

 

 

 

 

A DC linear servo amplifier is required to provide power to the torquer.

Rotary voice coil actuators are supplied unhoused without bearings.

Coupling the rotary voice coil actuator to your bearing system and a rotary encoder or other feedback device yields a system that is capable of intricate angular position, velocity, and acceleration control.

Low moving inertia of the moving coil assembly allows for high angular acceleration of the payload.

Advantages:

  • No Torque Ripple
  • High Angular Acceleration
  • No Commutation
  • Zero Cogging
  • Brushless
  • Low Profile

Applications:

  • Aerospace
  • Semiconductor
  • Medical
  • Military

Rotary Voice Coil Motor – is an arc segmented multipole permanent magnet stator with a low inertia copper magnet wire rotor. Angular excursions are typically less than 90º. This torquer is supplied with out a shaft or bearing.

TWR Series Limited Angle Torque Motor

The TWR Series is comprised of a stationary, arc segmented, multipole permanent magnet stator assembly with a low inertia wound wire rotor.

Rotor: The rotor is made up of a single coil of bondable copper magnet wire. The coil is wound and preformed into the desired shape. It is held together with the bonding agents in the wire. It can be encapsulated with aluminum or plastic brackets in order to provide a means for mounting the rotor to the bearing system and payload. The maximum angular excursion is less than 90º.

Stator: The stationary stator assembly consists of multipole permanent magnets that are bonded to steel plates. The 2 opposing steel plates are spaced apart to provide a gap using end plates. The coil rotor assembly moves angularly within this gap. There is no magnetic attractive force between the stator and the rotor.

The TWR Series Torquers are available in 2 configurations.

The low profile (Type L) configuration has a smaller overall height which allows it to fit in a more compact space, but has less angular rotation for a given stator arc segment.

The second configuration (Type S) has a larger overall height but has typically twice the angular rotation per given stator arc segment when compared to the Type L torquer.

  • No Torque Ripple
  • High Angular Acceleration
  • No Commutation
  • Brushless
  • Low Profile

For Product Descriptions of High Torque Voice Coil Actuators CLICK HERE

About H2W Technologies, Inc.

H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.

Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.

For additional information contact Mark Wilson at H2W Technologies, 26380 Ferry Ct, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com

 

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Motion Control – Custom Linear Mechanisms

Motion Control – Custom Linear Mechanisms from Steinmeyer …

Welcome to Where Precision Is.  You Can Turn to Steinmeyer for Design and Assembly of Custom Linear Mechanisms for your Precision Positioning Systems
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Modern mechatronic systems consist of numerous precision components that must be assembled in complex configurations. Here, every detail counts.
Steinmeyer Mechatronik, a division of August Steinmeyer GmbH,
offers design and assembly services for a variety of demanding applications.
We have deep experience in medical devices, laboratory instrumentation, optical inspection & semiconductor positioning. Our engineers can implement your finished design or optimize your concept.

For Example …Motion Control Linear Stage

Demanding series production for a medical instrument

The task was to develop a motion unit for a computer tomography scanner which moves tungsten collimators during X-ray source rotation so that the X-ray beam can be adjusted to the minimum radiation dose required. The assembly itself is continuously moved in a circular path around the patient during use. A special challenge was the high acceleration caused by the rotation on a large diameter transverse to the direction of movement. This additional load requires a particularly stable construction with minimal potential for error.

Highest stability and reliability

Since this is used in a durable medical device, the requirements for functional safety and reliability are very high. The positioning system has been tested for three million application cycles and has proven this claim with statistical certainty in an endurance test.

CLICK HERE to see this solution and others from Steinmeyer Mechatronik

Steinmeyer has decades of experience in precision assembly. All of our systems, whether single or multi-axis, are manufactured carefully. Our high standards, monitored continuously through vigorous quality systems, are evident in every assembly we produce. We pay attention to every detail.
Trust Steinmeyer With Linear Mechanism Solutions:
  • We can assemble custom linear mechanisms of all sizes – from miniature actuators using 3 mm linear rails, to 3 m long lifting mechanisms.
  • As an added value, our engineers will offer innovative ideas for optimizing your design.
  • We can quote a completely assembled module, including sourcing of key components!
  • We offer our customers the advantage of a close working relationship, enabling us to provide you with the best possible solution to meet your needs.

Contact Person for Custom Linear Modules

Bruce Gretz

Phone: 781-273-6220

Bruce Gretz   bruce.gretz@steinmeyer.com

About Steinmeyer

In the realm of linear motion control, Steinmeyer is synonymous with precision, innovation, and exacting standards of quality. We are the world’s longest continuously-operating manufacturer of commercial ball screws, our main product line. As an added value, we offer customized linear modules from our highly innovative and experienced Mechatronik division. Designed and manufactured in Germany, our products are used globally in precision positioning for medical devices, lab instruments, and other mechatronic applications. Steinmeyer engineers will work closely with you to customize our offering to deliver a solution that meets your technical requirements and budget.

For further information on Steinmeyer our extensive product portfolio, call 1-781-273-6220 or e-mail Rosemary Belt at rosemary.belt@steinmeyer.com or visit the Steinmeyer FMD group at: www.steinmeyer.com

 

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Motion Control – Application – Maxon Motor’s Exoskeleton Joint Actuator!

Motion Control – Application – Reliable, Powerful, Efficient Actuators

 motion control - application - Exoskeleton Drive

 

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Fall River, MA — Motion Control – Components – Motion Control Application – Application – Maxon Motor developed an exoskeleton drive for use in robotic limbs. This complete joint actuation unit consists of a pancake brushless DC motor with inertia optimized rotor. Also included is an internal high resolution encoder, planetary gearhead with absolute encoder and a position controller with CAN and RS232 interface. Fitting absolute encoder directly at the joint rotation provides designers increased positioning accuracy.

The motion control miniature actuator unit delivers 54Nm of continuous torque and 120Nm on a 20% duty cycle and may be operated on supplies between 10 and 50V DC and the actuation speed is up to 22rpm. Other key features include: compact housing, integrated controller and reduced weight and cost. The ideal choice for use in Hip and Knee Exoskeletons.

Contact maxon for more details info@maxonmotorusa.com

Comprehensive documentation and software are included with every delivery, and are also available for you to download from our website at www.maxonmotor.com.

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Motion Control – Harsh Environment 20 Bit Resolution Absolute Encoders Available from Electromate!

Electromate offers Netzer Harsh Environment Absolute Encoders

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Non-Contact, Absolute-Position Linear and Rotary Position Sensors

 

Vaughan, Ontario, Canada — Motion Control Components – Netzer Precision Motion Sensors has taken a revolutionary position sensing technology, originally developed for harsh environment specialized applications, and made it available for today’s broader range of defense, homeland security, aerospace and instrumentation motion control requirements. Standard and customized rotary and linear electric encoders are also applicable for space and avionics, medical, automotive and a wide range of other applications

Netzer’s Rotary Electric Encoders™ provide exceptionally accurate, high resolution, absolute position with miniature to wide diameter hollow shaft. Available with Analog Sin/Cos , Digital SSi , Digital AqB+I outputs, these rotary encoders feature up to 20 Bit Resolution (with 12 bit A/D) and accuracy to <0.01°

For material forming applications this means more accurate path motion, which is critical for accurate cutting and bending. For packaging, food, and converting applications, it means more accurate web tracking, sealing, gluing, cutting, and slitting. All of this is critical for today’s more complex consumer packaging. With coordinated motion blocks and enhanced capabilities, such as three-axis coordinated linear motion as standard, KAS is an ideal solution for more applications than ever before. A template project complete with preconfigured motion blocks, automation code and GUI code helps users get started with coordinated motion. This eliminates the need to control the timing and position of individual axes. It also enables the programmer to command motion in free space and just specify the end position and path.

The Electric Encoder™ non-contact technology relies on interaction between the measured displacement and a space/time modulated electric field. It offers a blend of features unequalled by optical or magnetic encoders.

Advantages of Electric Encoders™ include:

  • Simple, robust structure with a virtually no- failure- mechanism
  • Generous mounting tolerances
  • Very low weight, inertia, and profile (=<10mm)
  • Ring shaped, hollow shaft with a wide range of diameters
  • Absolute position output over 360° rotation range
  • Precision to 0.001° in selected models
  • Default operation range from -55°C to +125°C
  • Dual and triple redundancy options
  • No magnetic signature
  • High tolerance to condensation and contaminants
  • Insensitivity to EMI/RFI and magnetic fields
  • High customizability
  • Low power consumption
  • Ultra-high-speed options
  • Wide variety of position feedback protocols
  • Models range from 25mm OD to 248mm OD [6mm to 170mm ID]

CLICK HERE to view more information on the Netzer Encoders

About Electromate:

Electromate’s Core Purpose is to help Manufacturers build better machines using differentiated automation technology. They specialize in Robotic and Mechatronic Solutions for the Industrial Automation marketplace. Respected by customers as a premiere source for High Performance Automation and Motion Control Components & Systems, Electromate® specializes in AC & DC Servo and Stepper Motors & Drives, Motion & Automation Controllers, Positioning Systems & Actuators, Feedback Devices, Gearing Products and HMI’s & Operator Displays, all supported via extensive product selection, just-in-timedelivery, dedicated customer service and technical engineering support.

More on Electromate can be found at

Website: http://www.electromate.com

LinkedIn: https://www.linkedin.com/company-beta/209277/

Twitter: https://twitter.com/Electromate

Facebook: https://www.facebook.com/electromateindustrial/

Google+: https://plus.google.com/104057418684128701566

Blog: https://electromate.wordpress.com/

Electromate Best Blace to Work

For more information on the “Best Place to Work”CLICK HERE!

To view Electromate’s new corporate video CLICK HERE

To see all of Electromate’s Products and Application Stories featured on MotionShop.com, enter electromate in the Google custom search box (upper left, above)

For further information on this new product or others in our extensive product portfolio, call 1-877-SERVO99 (737-8699) or e-mail Warren Osak at sales@electromate.com or visit Electromate at: www.electromate.com

 

Motion Control Application – Universal XYZ Robot for Microscopy and Pipetting from Intellidrives!

Motion Control Component - Pipetting Robot

 

 

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Philadelphia, PA, – Motion Control Components and Systems – Manual pipetting is a time-consuming process that can lead to repetitive stress injuries. Automatic pipetting involves the use of robots to perform this type of tedious bench work, allowing scientists more time to design experiments and analyze data.

Overview

“Pipetting” refers to the use of pipettes, which are laboratory tools commonly used in biology and chemistry. They’re generally used to dispense a measured volume of liquid, although a pipette’s specific design can vary considerably from single pieces made of glass to complex devices that use electronics. Many types of pipettes draw up the liquid by creating a partial vacuum above the chamber that holds the liquid. A pipette’s accuracy and precision primarily depends on its design.

Intellidrives Motion Control Component - Pipetting Robot

Automatic Pipetting

Manual pipetting is often complex and inefficient, leading to increased preparation time, training requirements and operational costs. This process also increases the chances of procedural errors in an experiment.

An automated pipetting system generally transfers liquids between pre-selected containers in a programmed sequence. They’re also known as liquid-handling robots, especially when they include other components such as laboratory shakers and microplate washers in addition to pipettes. The ability to increase throughput and reproducibility is one of the primary advantages of liquid-handling robots.

These robots dispense liquids into containers such as tubes and wells. They’re often integrated into other systems such as liquid chromatographic systems, typically as automated injection modules. In addition to saving valuable time for scientists, liquid-handling robots are especially useful for preparing samples more precisely in applications requiring high-throughput in complex sequences. They may also be used for weighing samples in liquid and powder form as well as performing many types of biological and chemical assays.

These systems may contain additional components for feeding samples into heating and cooling systems, typically for the purpose of thermal cycling. Their physical construction may also allow them to easily integrate into peripheral lab-ware. For example, a liquid handler can be fitted with robotic arms that the user can program to manipulate external lab-ware, further enhancing the robot’s uses. Other features of automated liquid-handling robots include start/stop functions and the ability to coordinate the steps in a sequence, which is especially useful when performing assays.

Pipetting Robots Confirgurations

XYZ robots are automated liquid-handling platforms that provide a range of solutions for preparing samples. They provide a common platform that allows scientists to easily share protocols and reproduce results. These robots automate experiments that scientists would otherwise need to perform manually, allowing them more time to answer important questions.

IntelLiDrives XYZ robots support interfaces to external I/O devices such as fluid pumps. An adaptor is also available for the XYZ robot that allows it to hold a Society for Biomolecular Screening (SBS)-standard multi-well plate. This system allows the user to perform pipetting applications such as automated microscopy with a high degree of resolution and repeatability.

The user can also change the placement and orientation of individual devices to provide a variety of configurations, and one stage can even be removed entirely to create an XY setup.

Robot Programming

Users programs pipetting sequences, using GUI (graphical user interface) with icon-based programming or writing sequence scripts with a VB-like language. No programming experience required to create complex pipetting sequences with interfaces to external pumps and other labware hardware.

Intellidrives Motion Control Component - Pipetting Robot Controls

USB interface and ability to receive/execute in real time commands over the USB port, allows robot to be integrated into complex laboratory automation systems.

FOR ADDITIONAL INFORMATION – CLICK HERE

 

About IntelLiDrives —

IntelLiDrives, Inc. manufactures linear actuators, XY tables and rotary tables for the industry, government, science and research institutions around the world. Our precision rotary actuators, XY stages and linear actuators are used in the applications in medical devices, life sciences, semiconductor and electronic assembly manufacturing, data storage, laser processing, military/aerospace, photonics, automotive and test assembly, research and development and other industries requiring high precision and throughput motion control solutions.

For further information on this new product or others in our extensive product portfolio, call 1-215-728-6804 or e-mail Intellidrives at sales@intellidrives.comor go Intellidrive – Contact Us at: www.intellidrives.com/contact-us

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Motion Control – XY-Theta Alignment Stage Featuring High Resolution and High Repeatability Is Available from OES!

OES Motorized XY Theta Alignment Stage

 

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Van Nuys, CA – — Motion Control Components – Alignment Stage – The XYR-03-01 Alignment Stage from Optimal Engineering Systems, Inc. (OES) is a high resolution, high repeatability XY-Theta stage for such applications as: Angular glass cutting and grinding, wafer alignment, semiconductor handling, laser cutting and drilling. The linear resolution of the X and Y axis is 5µ (non-micro-step) or 0.125µ (20 micro-steps per step motor driver in use), the repeatability is 1.5µ, and positional accuracy is 5µ. The 1 mm per-turn lead screws and preloaded V-groove and crossed roller bearings add to the high precision and stiffness of the XYR-03-01 alignment stage. The linear travel of the X and Y axes is 50 mm x 50 mm.

The 100 mm diameter theta stage is driven by a precision 90:1 ratio worm gear. The resolution of the theta stage is 0.02O (non Micro-step) or 0.001O (20 Micro-steps per step motor driver in use). Repeatability is 0.005O, positional Accuracy is 0.01O and backlash is 0.005O.

Two-phase stepper motors are standard. The knob for manual adjustments of each axis can be replaced with an incremental encoder for position verification or closed loop operation. These black anodized Aluminum XY-Theta stages are easy to integrate into new or existing systems. Compatible Motion Controllers are available from OES and the XYR-03-01 Alignment Stage can also be ordered as a complete plug-and-play system.

About OES Optimal Engineering Systems, Inc. (OES) is a manufacturer of motion control products including: Stepper motor controllers and drivers, solenoid electronics, and positioning stages and slides. Applications include: Animation, automated assembly systems, automation, CNC machines, flight simulation, inspection systems, linear and rotary stages, machine tools, medical devices, motion control camera boom systems, optical comparators, CMMs, pan-tilt gimbals, PCB assembly & inspection, pick-and-place, positioning stages, robotics, scanners, security cameras, telescope drive mechanisms, time-lapse photography and winders

Some of the industries OES serves are: Aerospace, Astronomy, Chemical, Communications, Educational Institutes, University, Colleges, Government Agencies, National Labs, Manufacturing, Medical, Metrology, Military, Motion Control, Museum, News Agencies, Semiconductor and Test Equipment. Optimal Engineering Systems, Inc’s. competitive advantage is its state-of-the-art in-house manufacturing facility in North America enabling OES to supply clients with custom designed orders or high volume just-in-time deliveries globally.

For additional information contact Customer Service at Optimal Engineering Systems, Inc. (OES) , 6901 Woodley Ave, Van Nuys, CA 91406; Tel: 888-7071-1826, +1 (818) 222-9200, E-Mail: sales@oesincorp.com or visit the website at http://www.oesincorp.com

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