Category Archives: Motors – Linear- Redundant

Automation – High Force Air Bearing XY Voice Coil Positioning Stage!

Motion Control – Air Bearing-Stage
motion control - air bearing stage

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Santa Clarita, CA —– Linear Motion – H2W introduces its latest custom XY voice coil positioning stage (VCS08-700-08/350-AB-01-MC-XY) which is guided by precision air bearings. This minimizes the amount of friction and reduces the pitch, yaw, and roll in the system. The stage is driven by three NCC series moving coil type linear actuators which are guided by parallel air bearing shafts. It is operated under closed loop position control. This system was designed specifically for an accelerometer testing application.

Motion Control – Compact, Four Axis YY’ZZ’ Linear Motor Driven Stage Features High Speed and 1.0 Micron Resolution!

Motion Control – YY’ZZ’ Linear Motor Stage

motion control - yy zz stage


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Santa Clarita, CA —– Motion Control – When an application requires fast motion with a stroke over a couple of inches, a brushless linear motor stage will meet the needs of long travel and fast motion when coupled with a motion control system with servo amplifiers and a motion controller. Brushless linear motor stages can be coupled as a gantry for pick-and-place manufacturing or inspection equipment. The fast motion allows for high throughput when manufacturing or examining parts.

Motion Control White Paper – Unlocking the Linear Motion Specification Query

Motion Control – White Paper – Linear Motor Specifications

Understanding the specifications needed to properly size my motion control application –  

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Santa Clarita, CA —– Motion Control Tutorial – Every motion control problem begins with a need to move a certain payload over a certain distance. However, there are many types of moves possible, and determining the right motion control solution may require some calculations to match the specifications found on a given motors data sheet. Most sales engineers will ask you for three basic questions when directing you to the proper motor or motion control solution. What is the stroke or displacement required What is the force or thrust required? At what duty cycle do you plan on operating the motor? Travel Distance The travel distance is the first piece of information needed to unlock any specification, because a solution to move a few microns would utilize different motion technology from an application requiring several meters of travel.

Motion Control – Dual Feedback Voice Coil Positioning System!

Motion Control – Positioning Stage
motion control voice coil positioning stage


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Santa Clarita, CA —– Motion Control – H2W Technologies’ latest custom voice coil positioning stage (VCS08-350-LB-01-MC-F) was developed to meet the dual feedback requirements of the customer. This closed loop system allowed the user to monitor both position and force simultaneously and adjust accordingly. It incorporates a voice coil motor (NCC08-34-350-2X) which generates a continuous/peak force of 35.0 lbs [156 N]/105 lbs [467 N] with a total stroke length of 0.80 in [20.3 mm].

Motion Control – Redundant Coil Voice Coil Motor Available from H2W Technologies, Inc!

Motion Control – Redundant Voice Coil Motor!
motion control - redundant voice coil motor

 


motion control- h2wSanta Clarita, CA —–

Redundancy is a requirement on many flight systems in a special case when one coil faults, the other can be used to make the motor “fault-resistant”.

When three-phase AC power is applied to the primary, a travelling electromagnetic flux wave is induced and moves relative to the primary. The wave induces an electric current in the conductive reaction plate. The induced electric current interacts with the magnetic flux to produce a linear force. The speed of the motor can be varied by changing the input frequency using an adjustable frequency drive. Each coil pair operates as its own voice coil.

Other systems require simplified circuitry which would not allow the change of current polarity in order to change the direction, in these cases each coil can be used to drive the coil in a single direction. The challenge in manufacturing a redundant coil is ensuring the same performance no matter the coil, which requires precise manipulation of the magnetic circuit design, and the precise coil layout to ensure the identical operation and constants for each coil. This will allow the controls to seamlessly switch between the two coils.

There are two ways of accomplishing this coil redundancy. The most common way would be to generate multiple coils operating on individual magnetic circuits. This requires a longer coil and multiple magnetic circuits; however this is the most robust design and the least vulnerable to damage or interference from the redundant coil. The NCC08-18-025-2R2C is an example of the multiple coil design. An alternate method, which allows for the most compact solution, would be a multi-filar wind. This method only requires one magnetic circuit, which is why the length is shorter. In this case multiple coils are wound in the same winding space.

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.

 

See Product: https://www.h2wtech.com/product/voice-coil-actuators/NCC08-18-025-1R2C”

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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