Motion Control

High Flow Valve Used in Optic Processing Line

As the race to fulfill the ever-increasing demand for fiber optic assemblies began, the need for a fully automatic assembly line has come into focus. Individual filaments must be connected in such a way that the light traveling from strand to strand is not degraded. Owens Design (Fremont, CA) developed the custom Fiber Optic Assembly Line to join optic fibers and connectors. Using SMC’s (Indianapolis, IN) Series VQ5000 5-port solenoid valve as part of the feeder system, the assembly produces five types of fiber optic transducers.

Posted in: ptb catchall, Applications, Motion Control, Application Briefs

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Motion Controller Helps Test for Hard Disk Defects

Hard disks were originally intended for computers in ultra-clean, ultra-safe data offices; by the 21st century, hard disks had moved beyond the office, finding their way into digital cameras, video recorders, PDAs, and cell phones. With the ubiquity of hard disks comes the risk that any number of electronic devices can fail if their hard disk crashes. To detect hard disk defects while still in the assembly stages, THôT Technologies (Campbell, CA) developed the Model 42000, a laser-based test and measurement system for hard drives’ disks, using the DMC 1832 3-axis controller from Galil Motion Control (Rocklin, CA) to help monitor and regulate various systems of the Model 42000 as it conducts testing.

Posted in: Applications, Motion Control, Application Briefs

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Valve Motor

Eaton Corp. (Cleveland, OH) released the HP30 high-pressure disc valve motor for mobile off-highway applications requiring up to 30,000 in-lbs of intermittent torque. Options include a hydraulic parking brake offering up to 3,570 Nm of static holding torque. The device includes bearing pack, break, output shaft, and port mounts. Other features include a no-load pressure drop lower than 200 PSI at 25 GPM of flow. A two-piece balance ring provides mechanical and volumetric efficiencies. Continuous pressure is 170 liters per minute (45 GPM) at 310 bar (45,000 PSI); intermittent pressure is 265 LPM (70 GPM) at 345 bar (5,070 PSI). Maximum inlet pressure is 400 bar (6,000 PSI).

Posted in: Products, Motion Control

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Fringe Tracing Software

Engineering Synthesis Design, Inc. (Tucson, AZ) released the IntelliWave ™ interferometric measurement software package to monitor fringe change in fluid flow and thermodynamic analysis applications. The software allows for parallelism, angle, ROC, tool offset, homogeneity, and absolute measurements. Users can monitor over 30 fringe parameters (area, size, temperature, etc.), and may use any camera or scanner for data acquisition. Features include intuitive user interface, interactive spreadsheets, multi-region unwrapping and masking, real-time user interaction, and classical, shearing and speckle analysis.

Posted in: Products, Motion Control

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Rotary Stages

Aerotech (Pittsburgh, PA) released the ALAR series of direct-drive, large-aperture rotary stages. Coming in five aperture sizes (100, 150, 200, 250, and 325 mm), the units are designed for angular positioning and velocity control, and feature zero backlash, no gear wear, or gear vibration. Features include 45 – 300 rpm continuous rotation speed, continuous or limited travel, axial load capacity of 300 – 1,000 lb, and low wobble. Vac 10 – 6 torr compatible versions are available. The stage is 65 – 160 mm tall. Two configurations, standard profile (SP) and low profile (LP), are available.

Posted in: Products, Motion Control

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Ball Bearing Mounts

Asymmetric Fasteners, Inc. (Hackettstown, NJ) released the Torksleeve B mounting for ball bearings, compatible with roller, needle, linear, or plain bearing types. The unit provides quick assembly time, is compact, and lightweight. The unit also rebuilds in the field, and mounts to metal or plastic walls. The asymmetric thread design self-locks and is resistant to vibration. Tightening of the nuts causes the slotted sleeve to contract, gripping the bearing and clamping the unit to the frame.

Posted in: Products, Motion Control

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Achieving Positioning Accuracy Goals

The task of choosing the correct mix of motion control components for a successful servo positioning system involves a combination of art, science, and experience. It also includes a little luck, but luck is not needed when you fully comprehend the principle of operation, accuracy, resolution, and repeatability of each component in the system.

Posted in: Features, Motion Control, Articles

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