18-bit, 1kHz - 3MHz
The New AE Research Tool
of Acoustic Emission for Simultaneous Waveforms and Feature Processing
In 1995, PAC introduced 16-bit 20 MHz A/D for AE.
Now with the PCI-2, we are introducing our 18-bit 40
MSamples/sec A/D for Lower Noise & Higher Speed.
Ask for: . . .Standard PCI, not
"homemade" busses and boxes
The PCI-2 AE System
on a card is a 2-channel data acquisition and digital signal processing
system on a single full-size 32-bit PCI-Card, ready for operation in your
PC or one of PAC�s �hardened� PC�s (for multiple channel operation).
Superior Noise Performance and Speed...ideal
low noise and low threshold performance has been achieved with this revolutionary
AE system design, through the use of a PAC designed 18-bit A/D conversion
scheme, 40 MSample/second acquisition and real time sample averaging
techniques. This performance has been achieved via pipelined, real time
architecture, without any sacrifice in AE performance.
With these features and its very low
cost, the PCI-2 is ideal for laboratories, universities and industrial
turnkey systems, and any application where low noise,
low channel count and low cost are required, as well as where the
use of an existing PC is desired.
Through the high-performance PCI (Peripheral Component Interconnect)
bus and Direct Memory Access (DMA) architecture, significant AE data transfer
speeds can be attained, assuring a wide bandwidth bus for multi-channel
AE data acquisition and waveform transfer. In addition to two AE channels,
the system also has two parametric channels for other transducers,
such as strain gage, pressure, temperature, load and more. Ask PAC for
our latest performance tests.
. .Choice of AE Systems
Waveform data streaming capability is
built within the board, allowing waveforms to be continuously transferred
to the hard disk. The 32-bit PCI bus is the de-facto standard in
all PC computers being shipped today. PCI-2 AE System cards can be implemented
inside most standard PC computers or inside one of PAC�s rugged, multi-channel
PAC system chassis, including the 8-channel benchtop chassis and a 4-channel
notebook based chassis (�-series).
. .ISO Environment
to advances in surface mount technology and high density ASIC (high density
Programmable Gate Arrays) devices, PAC has been able to provide this single
AE System on a board with 2 complete high-speed AE channels of real time
AE data acquisition, with real time feature extraction, waveform processing
and transfer, 2 analog parametric input channels and 8 digital input and
output control signals.
. . . breakthrough
A/D, speed, noise, quality and price. . .
. .by Design
- Software available for the PCI-2 includes the
state-of-the-art PACwinTM Software Suite. With 25
years of acoustic emission application experience behind it, this Suite
is comprised of three individual software packages (purchased separately);
these are: AEwinTM real-time Windows acquisition, replay
and analysis software, AEwinPostTM post analysis software
and NOESISTM, the most complete Pattern Recognition (supervised
or unsupervised) and Neural Networks software in the
AE and NDT market today. (Ask about our free software drivers for
reading competitive system data files. . .so that their AE data makes
Front Panel activity lights are totally under
the control of your PC to provide status on AE data as well as to
give you indication of any malfunctioning of your system.
Audio AE Interface that is ready for �high
fidelity� listening with your PAC PCI-Audio Card.
Auto Sensor testing standard
with all PAC systems for easy system/sensor self calibration and interface
coupling efficiency monitoring.
. . . by Design
Standard 18-bit PCI hardware and 32-bit
Windows AEwin� software allows the customer maximum flexibility of using
a PC or a notebook computer. No need to change �home made� PC�s, but ability
to take advantage of today�s PC speeds readily available with high performance
PCI busses. Multiple AE channels (up to 8) are easily synchronized for
multiple location algorithms.
. . . of the PCI-2 AE system on a board include
- Very low noise, low cost, 2 channel complete,
AE system on a card, with waveform and hit processing built-in, on one
full size, industry standard, 32-bit PCI card.
- Internal 18-bit A/D conversion and processing
for better resolution (less than 1 dB) at very low signal amplitudes,
and low threshold settings, providing superior low noise performance.
- 40 MHz, 18-bit A/D conversion with real time
sample averaging (2x or 4x) to provide enhanced accuracy beyond any
existing AE system on the market.
- Built-in, real time AE feature extraction and
DMA transfer on each channel for high speed transient data analysis
at high hit rates directly to the Hard Disk (HD).
- Built-in waveform processing with independent
DMA transfer on each channel for high speed waveform transfer and processing.
- AE Data Streaming is also built into the PCI-2
board allowing continuous recording of AE waveforms to the hard disk
at up to 10 MSamples/sec rate (on one channel, 5 MSamples/ second on
2 AE channels).
- 4 High Pass and 6 Low Pass filter selections
for each channel, totally under software control.
- Up to 2 parametrics on each PCI-2 board with
16-bit A/D converter and update rates up to 100 readings/ second.
The first parametric is a full �Instrumentation conditioning channel�
providing signal conditioning including gain control, offset control
and filtering options for direct sensor input (e.g. strain gage inputs).
The second provides a straight +/- 10 volt input for conditioned sensor
- Designed with extremely high density FPGA�s and ASIC
IC�s, to provide extreme high performance and minimize components and
- Hit LED, and Audio drivers are built within the PCI-2
board so that LED�s can be attached directly and sound can be processed
via the PAC PCI-Audio Card (option).
- Digital signal processing circuitry virtually eliminates
drift, thereby achieving high accuracy and reliability.
. . supported by PAC�s AE multi-channel systems experience since the early
- PCI-2 is supported by PAC Windows Platform of PACwin�
Suite, a PAC Windows platform consisting of AEwinTM, AEwinPostTM
- All software runs in Windows 98, ME (Millennium Edition),
2000 and XP, thus taking advantage of standard features such as multi-tasking,
graphic user interfaces, etc. and providing the ability to change AE
parameters during test operation.
- Multiple location algorithms are available including
linear, planar, tank bottom, cylindrical, spherical (with ASME weld
zones), 3-D, advanced Non-Linear Regression (NLR) location, and
over-determined planar location for exceptional accuracy. All location
algorithms utilize attenuation tables/curves,
auto-sensor placement, and source corrected amplitude for more accurate
location and AE intensity calculation.