Product category:
Mechanical testing equipment
News Release from: Dynamic Structures and Materials | Subject: VF-500, VF-2000, SA-200
Edited by the Laboratorytalk Editorial
Team on 15 August 2005
Piezoelectric controller electronics
boost power
These instruments are the third generation of DSM's piezo electronics, which are used to drive piezoelectric materials in micropositioning, nanopositioning, and ultrasonic applications
Dynamic Structures and Materials (DSM) has released three new, high-power benchtop piezoelectric amplifier and controller products The new models feature increased power levels, increased bandwidth, and additional functionality for ease of use in laboratory or OEM applications
This article was originally published on Laboratorytalk on 2 Aug 2005 at 8.00am (UK)
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The VF-500 linear amplifier is a workhorse laboratory instrument designed for driving large piezo loads or smaller loads at relatively higher frequencies.
The product features a peak current of 1A, bandwidth of greater than 3kHz, output noise of <10mVrms, and is compatible with 85-264VAC, 47-63Hz input power.
The amplifier has a gain of 20 that is applied to a low-voltage analogue input signal to achieve the standard output voltage range of -30 to +150V (custom voltage limits are available upon request).
Further reading
Compact piezoelectric amplifier suits tight spaces
The VF-90 is compatible with National Instruments's CompactRio and CompactDaq modular chassis, thus enabling the use of the amplifier in both open- and closed-loop motion control applications
Mtec 2004 preview: ABB
ABB will be presenting the latest technology from its comprehensive range of instrumentation products and systems at Mtec 2004 (Birmingham NEC, 11-12 February 2004)
The front panel LCD enables a menu-driven user interface for changing a DC offset voltage and for configuring a built-in sinusoidal waveform generator.
The product also features over-current and over-temperature protection.
The new product can also be provided in a multi-channel version.
The VF-2000 linear amplifier is designed for OEM applications and offers two independent channels featuring 2A peak current per channel.
The amplifier's bandwidth is greater than 30kHz, output noise is <10mV RMS, and the input power requirements are compatible with 85-264VAC, 47-63Hz.
A total of 150V is available to be configured per the application requirements (ie, +/-75V, -30 to +120V, 0 to +150V, etc).
The VF-2000 also features optional circuitry to accept a TTL input trigger for fast switching of a piezo load between the amplifier's two voltage limits.
Over-current and over-temperature protection are standard features.
Applications requiring closed-loop control for true nanopositioning will benefit from the SA-200 servo amplifier.
The SA-200 features 350 mA max peak current, ~1mV RMS electrical noise on the output, and a bandwidth of greater than 3kHz.
A built-in controller features full user-configurable PID gain settings.
Standard product features include serial communication (RS-232), Labview VIs, a 24-bit analogue input channel, and analogue or digital feedback for a closed-loop control signal.
Optional features include a second 24-bit analogue input channel and two channels each of digital I/O for enabling TTL lines (customised software for enabling digital I/O functionality can be provided).
Standard line voltage requirements are 105-125VAC, 50-400Hz, and 210-250VAC, 50-400Hz operation is available.
DSM specialises in the design, development, integration, and support of micropositioning, nanopositioning, and robotic positioning devices and systems for precision motion control applications in the semiconductor, aerospace, medical, and research industries.
DSM's core competencies in the design and integration of specialty piezoelectric actuators and stages, piezo amplifiers and drivers, and robotic platforms enable innovative positioning solutions for unique applications.
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