| PCI/DSP-4 |
Four Complete Channels of Digital
Acoustic Emission Data Acquisition on a Single Board |
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high speed ● high performance
● advanced parallel DSP
 The
PCI/DSP-4 board is the heart of the
DiSP System. Due to advances in surface mount technology and high density
ASIC devices, we have been able to provide this single PCI card with 4
complete high-speed, channels of Digital Signal Processing (DSP) based
AE data acquisition, up to 8 parametric input channels (on the first card)
and optional waveform module. Through the high performance PCI bus, significant
AE data transfer speeds (up to 132 Megabytes/second) can be attained.
This assures a wide bandwidth bus for multichannel AE data acquisition
and waveform processing.
Since the 32-bit PCI bus has become the de-facto standard in all PC computers today, PCI/DSP-4 boards
can be implemented inside your PC or inside one of PAC�s rugged, multichannel DiSP workstations. |
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Features |
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Advanced parallel DSP acoustic emission technology with high-speed PCI cards -
Proven knowledge-based software and state-of-the-art LAN networking capabilities -
Four 16-bit, high-speed A/D converters (no gain changes) -
High-performance, multiple DSP technology on a single 4-channel PCI card
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Multiple FPGA's for fast, simultaneous AE parallel processing of AE features and waveforms
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Up to 8 parametrics on the first PCI/DSP-4 -
Progressive real-time AE features in both time and frequency domains -
Multiple software programmable filter
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PCI/DSP-4 Physical Specifications |
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Size: |
12.28" L x 4.2" H x 0.6" T |
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Weight: |
1.1 lbs. |
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Power Consumption: |
18 Watts |
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DC Power: |
+12.0 volts 0.6 amps
-12.0 volts 0.1 amps
+5.0 volts 2.0 amps (1 amp can be from +3.3V) |
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Interface to PC |
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Through PCI (Peripheral Component Interconnect Bus) |
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Electrical Specifications |
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AE Inputs: |
4 channels |
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Input Impedance: |
50 ohms |
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Sensor Testing: |
AST |
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Frequency Response: |
10 kHz - 2.1 MHz + 1.0 dB |
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SPM Module (attached to the PCI/DSP-4 main board) |
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Dimensions: |
3.5"x 6.5" module with filters & ADC's |
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Input Impedance: |
50 ohms |
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Filters: |
4 High Pass - software selectable 10kHz, 20 kHz, 100 kHz, 200 kHz
4 Low Pass - software selectable 100kHz, 200 kHz, 400 kHz, 2.1 MHz |
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Noise Minimum Threshold: |
18 dB AE |
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Maximum Signal Amplitude: |
100 dB AE |
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ADC Type: |
16 bit, 10 MSPS per channel |
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Dynamic Range: |
> 82 dB |
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Sample Rate: |
Fixed @ 10 MSPS (for features) |
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Processor |
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TMS320C33 - 32 bit Floating Point DSP |
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Speed: |
75 MHz, 150 MFLOPS |
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Standard On-board Memory: |
1 Mbyte |
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Waveform Option Module |
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4-channel plug-in module |
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Processor: |
On-board DSP Processor |
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DSP & Waveform Buffer: |
1 Mbyte |
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Waveform Memory: |
128 kbytes/channel standard |
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Sample Length: |
Variable from 1 to 15 ksamples per channel |
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Waveform Sample Rate: |
Selectable 10 MSPS, 5 MSPS, 2.5 MSPS, 1 MSPS, 500 KSPS, 200 KSPS, 100 KSPS |
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Parametrics |
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All parametrics are located on the first board |
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Parametric Channels: |
8 channels standard on Master PCI/DSP-4
(1st board), + 10 volt input, 16-bit A/D |
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Parametric Input Type: |
Differential on channels 1-2,
single ended on 3-8 |
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Parametric Sample Rate: |
20 kHz sample rate for each analog parametric |
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Hit Driven Parametrics: |
2 - Analog Hit Parametrics, Serial bus to trans- mit parametrics to all PCI/DSP-4 boards in all chassis at parametric sample rate |
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Time Parametrics: |
All 8 parametrics are available in time
data set |
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Time Driven Data Rate: |
10 msec. to 60 seconds Controlled by software |
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Parametric Time Gate: |
AE data acquisition inhibited by para-metric value. Two Thresholds. Flexible gating options - outside thresholds, inside thresholds,
positive/negative slope |
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Cycle Counter Type: |
24 bit count resolution. Software programm-able threshold from 0 - 5.00 volts in 10 mv steps. Independent software
selectable source - analog parametric channel 1-4 (filtered or unfiltered). Serial bus transmits cycle counter to all PCI/DSP-4s, in all chassis |
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Audio Monitor |
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Software controllable analog switches and buffer to select desired channels to be routed to audio monitor board. |
