UTM is a combination of a 4-channel
pulser/receiver and a high-speed analogue
to digital converter on a single PCI
board.
The board generates an electrical pulse
with the user-defined pulse voltage
and pulse width through one of the 4
channels. The pulse is transmitted to
an ultrasonic transducer, which then
converts the electrical excitation pulse
to an ultrasonic pulse that is propagated
into either the tested material or couplant.
The transducer also receives the echoes
that are reflected from the interface
and converts the ultrasonic pulse back
into an electrical signal.
The on-board receiver processes the
signal with the user defined parameters,
and the A/D converter converts analogue
signals into digital data at a rate
of 100 million samples per second. The
digital data is transferred to the computers
RAM at about 10 MB per second. The resolution
of the conversion is 9 bits, which can
be a number from 0 to 511.
The memory depth can reach up to 256
kilo samples. Other adjustable parameters
include pulse voltage, pulse width,
damping, internal relay for pulse/echo
or through transmission switching, receiver
gain, DC offset, low-pass filter, high-pass
filter, rectifications, sampling rates,
external trigger, buffer length and
adjustable trigger delay. The pulsing
channel and the receiving channel can
also be set at the user’s preference.
And they do not have to be the same.
A standard scope software is included
with the board.
Options include digital inputs and outputs,
an external clock input, a sync output,
memory updates, an on-board hardware
key module, a logarithmic amplifier,
distance amplitude correction (DAC),
additional two 14-bit analogue to digital
converters, and software development
kits. Refer to PCIUT3100 all-in-one
UT board and DT16B 16-channel pulser/receiver
switching board for more channel solutions.
Features
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One-Board Design:
4-channel pulser/receiver and
A/D converter on a single PCI
board |
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32-bit PCI
bus for ultra-fast data transfer |
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On-board microprocessor
for various custom applications |
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Up to 4 on-board
encoder counters for on position
acquisition |
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Time stamps,
XYZW positions, and I/O statuses
for each A-scan |
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4-channel automatic
timing and switching capability |
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Distance amplitude
correction (DAC) for all 4 channels |
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Up to 100MSPS
high-speed A/D conversions with
9-bit resolution |
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Optional logarithmic
amplifier |
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FIFO memory
for storage of multiple A-scans |
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Pulser switcher-off
while taking data for low pulser
noise |
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Wide-range
dynamic gain |
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Adjustable
DC offset |
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Included UT
oscilloscope software for Windows
95/98/2000/NT/XP |
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Optional Windows
95/98/2000/NT/XP software development
kits for C/C++, Visual BASIC,
or LabView |
