Products

Product of the Month: the PicoScope 5000 Series

Pico Technology, Tyler, TX, has introduced the PicoScope 5000 Series flexible-resolution oscilloscopes that use reconfigurable ADC technology to offer a choice of resolutions from 8 to 16 bits in a single product. Multiple high-resolution ADCs can be applied to the input channels in different series and parallel combinations to boost either the sampling rate or the resolution. In series mode, the ADCs are interleaved to provide 1 GS/s at 8 bits. This mode can also provide 500 MS/s at 12 bits resolution. In parallel mode, multiple ADCs are sampled in phase on each channel to increase the resolution and dynamic performance. Resolution is increased to 14 bits at 125 MS/s per channel (70 dB SFDR). If only two channels are required, resolution can be increased to 15 bits, and in single-channel mode, all the ADCs are combined to give a 16-bit mode at 62.5 MS/s. The scopes have memory buffers of up to 512 MS to allow long captures at high sampling rates.

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Instrumentation Valves

Brennan Industries (Cleveland, OH) offers a line of compression-end instrumentation valves available with single or double ferrule-style tube fittings. The NVB Series ball valves range in size from 1/8" to 3⁄4 " and are available in either 316 stainless steel or brass construction. These valves can have two- or three-way configurations and are rated to 3,000 psi. NVN-2200 and NVN-2300 Series screwed bonnet needle valves range in size from 1/8" to 1" and are available with either metal-to-metal or soft-seat stem types. The 316 stainless steel valves are rated to 6,000 psi, and the brass valves are rated to 3,000 psi.

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Linear Actuators

Exlar, a business group of Curtiss-Wright Controls (Chanhassen, MN), offers the K Series™ linear actuators with a 75-mm frame size. They combine roller screw technology in varying performance levels, and allow the use of third-party motors. Along with 60-mm and 90-mm frame sizes, the actuators feature dimensions and form-factor consistent with ISO Metric pneumatic cylinder specifications for pneumatic and hydraulic replacement. They are compatible with any type and style of motor such as DC, stepper, and servo, and offer universal mounting configurations. They offer standard stroke lengths up to 48 inches. The standard body design provides an IP54S sealed housing with options available for IP65S sealing. A variety of materials and coatings is also offered, such as Type III hard coat anodizing, electroless nickel plating, and epoxy coating.

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Motor Controller

Fairchild Semiconductor (San Jose, CA) has released the FCM8531 analog and digital integrated motor controller. The 3-phase, hybrid BLDC/PMSM controller offers two parallel processors — an advanced motor controller (AMC) and an embedded microcontroller (MCU) — that provide a one-chip solution for complex motor control applications. The two core processors exchange data through an internal communications interface.

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DC Brushed Motor

The RE 30 EB precious metal brushed motor from maxon precision motors (Fall River, MA) features a low startup voltage and a rated torque of 53 mNm. Other features include minimal highfrequency interference, ironless windings, and precious metal brushes. The motor is designed for haptic applications such as surgical robots. The motor can also be used as a sensor, acting as the sense of touch for registering mechanical resistance.

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Drive Module

ACS Motion Con - trol (Eden Prairie, MN) offers SPiiPlusUDMlc compact EtherCAT dual/quad-axis drive for equipment utilizing small motors such as pick/place machines, tabletop motion platforms, and wide-format inspection/ assembly equipment. The universal drives can run servo, stepper, and voice coil motors with a power range of 10W to 200W. The type of motor is selected by the user, and can be set differently for each drive axis. It is available in three current levels (cont./peak per axis): 1.25/2.5A, 2.5/5A, or 5/10A (dual-axis version only); supports motor bus voltages from 15-48Vdc; and has inputs for four digital incremental and up to two absolute encoders.

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Axis Calibrator

The XR20-W calibration system from Renishaw (Hoffman Estates, IL) wirelessly measures the an gular position of rotary axes to within ±1 arc second for testing the accuracy of lathes, multi-axis ma chine tools, mill-turn machines, trunnion tables, and spindles. It works in conjunction with XL-80 or ML10 laser interferometers, and combines the readings of the rotary calibrator and laser to determine positioning errors in axes under test. Off-axis rotary software allows it to be used even when it cannot be positioned directly on the rotary axis under test. The software calculates true position and records axis performance and errors when compared to the intended target. It attaches to a rotary axis via a flexible mounting ring assembly, and is centered within ±1 mm (0.04") using a visual aid. Flexible mounting options include an adapter plate for rotary tables with unsuitable center recesses, and a chuck adapter for lathes.

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