Product category:
Sensors and Data Acquisition
News Release from: Strategic Test | Subject: UF.4500
Edited by the Electronicstalk Editorial
Team on 05 July 2002
16bit acquisition cards for simultaneous
sampling
A new series of data acquisition cards from Strategic Test has been designed for measurements that require simultaneous sampling at a maximum sampling rate of 1MHz.
A new series of data acquisition cards from Strategic Test has been designed for measurements that require simultaneous sampling at a maximum sampling rate of 1MHz Unlike traditional data acquisition cards that sample each channel through a multiplexer that generates time delays between each channel, the UF.4500 cards have separate 16bit A/Ds that are synchronised by a master clock
This article was originally published on Electronicstalk on 4 Jul 2002 at 8.00am (UK)
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The UF.7021 is a full-length PCI board with 64 digital input or output channels that can simultaneously capture and replay signals at a maximum sample rate of 125Mbit/s.
While not every measurement task requires this level of precision, simultaneous sampling is important if users need to compare what is actually occurring on different channels at a particular time, for example measuring vibration levels on rotating machines, the effects of combustion in engines, or the transient signals resulting from a drop test.
There are six different UF-4500 boards in the range, the main differences being the maximum sampling rate (1MHz, 500kHz or 200kHz) and the number of input channels (two or four channels).
Each board is supplied with 16Mbyte of onboard RAM that can be used to store the recorded signals or can be configured as a FIFO to allow data streaming to the host PC's RAM at the maximum sampling rate.
Like a digital oscilloscope, the UF.4500 boards provide various triggering capabilities for accurate event capture: external trigger, level trigger, pulsewidth trigger and an OR logical trigger that can be used to combine various trigger types.
Purchasable options include the possibility to synchronise multiple boards (including those from the faster UF-3000 range), multiple recording (allows different triggered events to be stacked in the onboard RAM), gated sampling (recording is controlled by an external gate signal) and timestamp (records the times of multiple triggered events).
Software drivers are supplied for Windows XP/2000/NT/98, DOS and Linux.
As an option, drivers for LabView, Matlab, VEE and DasyLab are available.
A free data acquisition and signal analysis program called SBench is also supplied.
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