Special Coverage

Transducer-Actuator Systems for On-Machine Measurements and Automatic Part Alignment
Wide-Area Surveillance Using HD LWIR Uncooled Sensors
Heavy Lift Wing in Ground (WIG) Cargo Flying Boat
Technique Provides Security for Multi-Robot Systems
Bringing New Vision to Laser Material Processing Systems
NASA Tests Lasers’ Ability to Transmit Data from Space
Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines
Vibration Tables Shake Up Aerospace and Car Testing
Supercomputer Cooling System Uses Refrigerant to Replace Water

Linear Motors

Applimotion (Loomis, CA) offers LARC (Linear Arc) motors for large-diameter applications greater than 1 meter in diameter. The modular nature of the motors allows them to integrate with large assemblies for scanning, imaging, and metrology applications where size requirements take priority over high-torque requirements. LARC motors come in modular pieces and bolt into any large-diameter servo motor application. The motors operate from standard brushless motor amplifiers from 24 to 30V. They work with encoders, resolvers, or magnetic encoders for directdrive applications. The motors offer a low-profile design to fit into tight spaces. Hermetically sealed magnet tracks and coil assemblies are available for vacuum or special environments.

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Position Switches

AutomationDirect (Cumming, GA) offers the NITRA® line of position switches for pneumatic cylinders, including round, dovetail, t-slot, square, and D-shaped. Additional dovetail accessories are available to accommodate larger dovetail slots. The solid-state electronic switches are available in normally open, 3-wire DC PNP and NPN configurations, and can be purchased with an M8 wiring connector or 3-meter integral cable with wire leads. Mounting bands with adapters for round body cylinders are available ranging from 1/8" to 4" sizes.

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Rotary Position Sensor

Piher Sensors & Controls (Chicago, IL) has introduced the MTS-360 Mechanical Mount rotary position sensor with integral PCB. Designed with the sensor directly mounted onto a PCB, the package allows engineers to install a rotary sensor without designing a printed circuit board for the sensor. The assembly is available with either 6-pin (dual output) or 3-pin (single output) Molex 90119 Series mating connectors. The assembly can be secured with three standard M3 screws.

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Vibration Isolator

Minus K Technology (Inglewood, CA) has released the CM-1 compact, high-capacity, low-frequency, negative-stiffness isolator designed to support heavy payloads while reducing low-frequency vibrations. The isolator comes in several capacity ranges to match vibration-sensitive instruments such as SPMs, micro-hardness testers, profilers, interferometers, electron microscopes, or other imaging systems, for weight loads from 50 to 800 pounds. The isolator delivers a vertical natural frequency of 1/2 Hz or less, which can be achieved over the entire load range. Horizontal natural frequency is load-dependent. The unit is completely passive, using no air or electricity, and can be combined into multi-isolator systems to support heavy payloads. They can be placed on pedestals to bring them to an appropriate height to retrofit existing air tables.

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Rotary Position Sensors

Bourns (Riverside, CA) has introduced the Bourns® Model AMS22U and Model AMM20B non-contacting rotary position sensors for rugged environments. They utilize magnetic Hall Effect (HE) technology, and are designed for pneumatic control valve position feedback, actuator motor position feedback, lift/shuttle suspension systems, and tilt control feedback. The Bourns® Model AMS22U is a single-turn, non-contacting rotary position sensor that offers a rotational life of up to 100 million cycles, and features a 1/8" shaft supported by dual ball bearings and a factory-programmable electrical angle from 10 to 360 degrees. The Bourns® Model AMM20B is a multi-turn, noncontacting rotary position sensor that features a rotational life of up to 50 million cycles. It features a slim profile for space-constrained applications, 12-bit resolution, and a factoryprogrammable electrical angle from 1080 to 3600 degrees.

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Controllers

The Simatic S7-1500 controllers from Siemens Industry (Chicago, IL) feature integrated motion control, security, and safety functions, as well as a color display. The controllers feature a backplane bus with a high baud rate and efficient transmission protocol, and have have two built-in, standard Profinet interfaces. The largest controller in the line has an additional Profinet interface onboard with a separate IP address, allowing network isolation to integrate into the corporate network.

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Cartesian Robot

IAI America (Torrance, CA) offers a Cartesian robot with commanded acceleration of up to 3.2 G (maximum instantaneous acceleration: 4.8 G). The dedicated cast aluminum frame ensures high rigidity. The shape and vibration damping of the fastening brackets for XY-axes reduce the vibration at the tip of the Zaxis, while the vibration control function of the XSEL controller reduces vibration during highspeed operation. A wide operation range of 400 mm (X-axis) × 300 mm (Y-axis) is provided. The high-speed Cartesian robot combines single- axis robots, each performing linear motion, for straight-moving performance.

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AC Vector Drives

The SK 200E series distributed size 4 AC vector drives from NORD Gear Corp. (Waunakee, WI) offers power capacity to 30 HP. The drives are capable of operating up to 15-HP motors on 200 to 240 VAC 3-phase power, and up to 30-HP motors on 380 to 500 VAC 3-phase power. The drive mounts directly to the motor and not in the control panel. The drive offers sensorless current vector control (ISD), plug-in memory-storage module (EEPROM) for storing application-specific drive settings on a transferrable memory module, diagnostic LEDs, internal 24V control power supply with the option to provide external 24V control power, and POSICON positioning control with incremental or absolute encoder feedback.

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Lens Actuator

New Scale Technologies (Victor, NY) offers the UTAF (ultra-thin auto focus) piezoelectric lens actuator module that measures 8.5 × 8.5 × 3.8 mm. The module integrates the company’s UTAF piezoelectric beam motor with a drive IC and position sensor IC for closed-loop motion control. A pin bushing system moves the lens in a straight line with dynamic tilt of less than 0.1 degree, a requirement for high-megapixel cameras and imaging systems. A flexure preload or magnetic preload system produces substantially zero additional friction in the bearing guide, irrespective of the location along the optical centerline. This allows the module to lift a mass at least three times greater than the typical lens mass of 0.25 grams, insuring a low sensitivity to gravity orientation for the camera system.

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Gear Reducer

The Able VRB Gear Reducer from Shimpo Drives is available from Servo2Go.com (Greenville, DE), and is suited for packaging machinery, medical equipment, and assembly cell automation. The standard mounting is a through-bolt style. The maximum output torque peaks at 2,300 in-lbs. It provides high-precision backlash rating of

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