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Encoder Helps Track Molecular Level Movement

What good is a $100,000 ultra-precision inverted microscope if it can’t hold focus? That’s the problem facing researchers involved in an increasing number of genetic experiments.

Posted in: Applications, Application Briefs

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Brushless Motor Design Kit

Luminary Micro (Austin, TX) has introduced the Stellaris brushless DC motor control reference design kit, enabling designers without prior motor control experience to implement an advanced motor control system. The kit comprises a four-quadrant controller for three-phase brushless DC motors rated up to 36V, 500W, and 60,000RPM; CAN and Ethernet network interfaces; a 32-bit Stellaris microcontroller; and embedded software to control motors.

Posted in: Products, Products

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Bevel Gear Drives

The TDB254WR wide-wheel bevel gear drive from ABM Drives (Germany) incorporates special gearing to produce the industry’s tightest swing radius – just 7in. – for wide wheel capability with zero-offset drive. Designed for pallet trucks, the gear drive is available in gear ratios from 14:1 to 39:1.

Posted in: Products, Products

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Load Cells

A family of industrial load cells from Stellar Technology (Amherst, NY) includes 20 models covering ranges from 5 lb to 1,000,000 lb. These cells are available in pancake, rod end, miniature, through-hole, load pin, beam, and canister designs. The cells incorporate welded stainless steel or high-strength alloy construction. All have strain gage technology and resist shock and vibration.

Posted in: Products, Products

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Linear Actuators and Amplifiers

Four new series of piezoelectric stacked actuators from Physik Instrumente L.P. (Auburn, MA) are equipped with the advanced PIC 255 PICA(TM) Power piezoceramic stacks. Designated the P-212, P-216, P-225, and P-235, the actuators come with load capacities from 2,000 to 30,000 Newtons and travel ranges from 15 to 180 micrometers. All the actuators provide sub-nanometer resolution and available with position feedback for higher positional accuracy.

Posted in: Products, Products

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Absolute Encoder

The Acuro(TM) AD34 and AD35 absolute encoders from Dynapar (Gurnee, IL) utilizes the company’s proven OptoASIC engine for reliable absolute positioning and speed feedback up to 10,000 RPM. This high-speed capability, coupled with an operating temperature range of up to 120°C, suits it for servomotors. In addition to its compact 37 mm diameter and short mounting depth, the encoder is available with a Mylar code disc capable of up to 17 bits of single-turn resolution.

Posted in: Products, Products

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PTFE Bearing Liner

A maintenance-free PTFE bearing liner from Aurora Bearing (Montgomery, IL) provides an alternative to fractured race and light series spherical bearings in hydraulic cylinders in both Metric and inch versions. They are best used in static situations where potential misalignment cannot be accommodated by plane bushings or clevises and pins. Maintenance-free PTFE lined bearings have a close tolerance fit between ball and race, improving precision and life over metal-on-metal fractured race bearings.

Posted in: Products, Products

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