Products

13-bit magnetic sensor

Renishaw, Hoffman Estates, IL, has introduced a 13-bit magnetic sensor for rotary and angular positioning control. Providing 8,192 counts per revolution, the sensors are available in chip, chip-on-board, and ready-to-mount packaged versions. The solid-state, non-contact design features an integrated circuit chip that senses the position of a separate two-pole permanent magnet. Suited for difficult environmental requirements, the sensors provide -40°C to 125°C operational temperature range, and shock and vibration resistance. Friction-less, low-inertia operation enables 0.3° positioning accuracy at speeds to 30,000 rpm. They are available in models providing absolute, incremental, analog, or digital outputs, as well as simultaneous SSI and incremental output. Chip and chip-on-board models allow the sensors to be integrated into machinery and equipment designs. Packaged versions enclose the chip and electronics in metal cases. Enclosed units are used in rugged applications and environments; fully encapsulated versions are waterproof.

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p1411A RF vector signal generator

PrecisionWave Corp., Colorado Springs, CO, has introduced the p1411A RF vector signal generator that includes a spectrum analyzer display and an internal IQ waveform generator. It is available in both benchtop and ATE configurations. User-created IQ waveforms can generate other signal types, specify data content, or create worst-case signal scenarios for development and test of ICs, sub-assemblies, or completed products. The display continuously shows the instrument's output, and can be used to preview waveforms prior to selecting them for output. The 7" TFT display includes a touch panel for instrument control without an external mouse, keyboard, or stylus - all of which can be connected if required. The instrument features LAN programming, and may be controlled and monitored from Web applications. It includes a low-phase-noise 10-MHz internal frequency reference, and can accept an external 10-MHz reference signal for synchronization with other devices and test equipment. For Free Info Visit http://info.hotims.com/10958-120

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Brushless Motor Drive

Intelligent Motion Systems (IMS, Marlborough, CT) released the MDrivePlus motion control system for brushless motor applications. The unit features 20 microstep resolutions to 51,200 (full step, degrees, metric, and arc minutes), a motion control system-on-a-chip, electronic gearing, 6,385 bytes of program storage, and analog input to 10 VDC. Drive voltage ranges include +12 to +75 VDC and 120 and 240 VAC. The housing is chemical resistant and the unit has a cast aluminum heat sink. Outputs are configured for sourcing or sinking, and the unit features an auxiliary logic power input.

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Motor Drive Module

International Rectifier (El Segundo, CA) released the IRMCT3UF1 fully integrated high-reliability hybrid motor control modules enabling digital, sensor-free vector control of permanent magnet motors. The module combines digital control, analog interface, and power stage. Speed and torque control are provided with commutation or position sensors. Sinusoidal current control enables current startup sequencing and low loss space vector pulse-width modulation. EMI is suppressed. The unit’s algorithm accommodates motor parameter variation for compatibility with brushless DC and permanent magnet AC motors.

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Hub-Fastening Gears

Sterling Instrument (New Hyde Park, NY) released the “S1268Z-...M” series of 84 combination aluminum-acetal gears. Coming in metric and imperial sizes, the gears are 20° pressure angled, AGMA Q10 and ISO Class 7. Sizes range from 21 – 210 teeth with outer diameters ranging from 0.958 – 4.083". The gears are designed to mate with hubs accepting shaft sizes from 0.0900 – 0.2498" in diameter, and come in 24, 32, 64, and 72 diametral pitches with a face width of 1/8". Other features include noise reduction, a small gear hub envelope, and Fairloc® integral hub fastening system technology.

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Translation Stage

Physik Instrumente (PI) LP (Auburn, MA) introduced the P-652 piezoelectric linear-motor driven translation stage, measuring 9.0 × 6.5 × 2.4 mm. Consisting of four parts (ultrasonic piezoelectric resonator, two lateral sliders, and a spring doubling as the moving carriage), the device can replace classical drive elements in a micro-system. The stage offers a travel range of 3.2 mm and can move up to 80 mm/sec. The load to be moved is mounted directly on the carriage and moved by a force of up to 100 mN. The unit is backlash free (no lead screws), with power consumption in steady state conditions being zero. No external brake is needed to maintain stability. Other features are: 55 mA operating current, holding force of >0.2 N, and a resolution of better than 0.1 microns.

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Bi-Directional Motors

Oilgear Co. (Milwaukee, WI) introduced the MFW and MVW fixed and variable displacement bi-directional high-speed motors, offered in two frame sizes and four displacements. Features are: cylinder mounted in polymerous journal bearings for special fluids, a hard-on-hard rotating group for greater contaminate resistance, a sealed front shaft bearing, metered hydrodynamic or regenerative braking, maximum pressure of 4,500 psi, and maximum speed to 3,000 rpm.

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