Atec Panametrics-Olympus-Omniscan-MX - Manual (Page 13)

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Phased Array Module Specifications
(Applies to OMNI-M-PA16128)
Overall dimensions
(W x H x D)
244 mm x 182 mm x 57 mm
(9.6 in. x 7.1 in. x 2.1 in.)
Weight 1.2 kg (2.6 lb)
Connectors
1 OmniScan connector for phased-array
probes
2 BNC connectors (1 pulser/receiver,
1 receiver for conventional UT) (BNC not
available on models 32:32 and 32:128)
Number of focal laws 256
Probe recognition Automatic probe recognition and setup
Pulser/Receiver
Aperture 16 elements*
Number of elements 128 elements
Pulser
Voltage 80 V per element
Pulse width
Adjustable from 30 ns to 500 ns, resolution
of 2.5 ns
Fall time Less than 10 ns
Pulse shape Negative square wave
Output impedance Less than 25 Ω
Receiver
Gain
0 dB to 74 dB, maximum input signal
1.32 Vp-p
Input impedance 75 Ω
System bandwidth 0.75 MHz to 18 MHz (–3 dB)
Beamforming
Scan type Azimuthal and linear
Scan quantity Up to 8
Active elements 16*
Elements 128
Delay range transmission 0 µs to 10 µs in 2.5-ns increments
Delay range reception 0 µs to 10 µs in 2.5-ns increments
Data acquisition
Digitizing frequency 100 MHz (10 bits)
Maximum pulsing rate Up to 10 kHz (C-scan)
Acquisition depth
29 meters in steel (L-wave), 10 ms with com-
pression. 0.24 meter in steel (L-wave), 81.9 µs
without compression
Data processing
Number of data points Up to 8000
Real-time averaging 2, 4, 8, 16
Rectifier RF, full wave, halfwave +, halfwave –
Filtering
Low-pass (adjusted to probe frequency), digital
filtering (bandwidth, frequency range)
Video filtering Smoothing (adjusted to probe frequency range)
Data storage
A-scan recording (TOFD)
6000 A-scans per second (512-point, 8-bit
A-scan)
C-scan type data recording I, A, B, up to 10 kHz (amplitude or TOF)
Maximum file size
Limited to available internal flash memory:
180 MB (or 300 MB optional)
Data visualization
A-scan refresh rate Real time: 60 Hz
Volume-corrected S-scan Up to 40 Hz
Data synchronization
On internal clock 1 Hz to 10 kHz
On encoder On 1 or 2 axes
Programmable time-corrected gain (TCG)
Number of points 16 (1 TCG curve per channel for focal laws)
Alarms
Number of alarms 3
Conditions Any logical combination of gates
Analog outputs 2
* Models 16:16, 16:16M, 16:64M, 32:32, and 32:128 also available
Eddy Current Modules Specifications
Eddy Current Array Eddy Current
Overall dimensions
(W x H x D)
244 mm x 182 mm x 57 mm
(9.6 in. x 7.1 in. x 2.1 in.)
Weight 1.2 kg (2.6 lb)
Connectors
1 OmniScan ® connec-
tor for eddy current
array probes
N/A
1 19-pin Fischer eddy current probe connector
1 BNC connector
Number of channels
32 channels with inter-
nal multiplexer
64 channels with exter-
nal multiplexer
4 channels
Probe recognition Automatic probe recognition and setup
Generator
Number of generators 1 (with internal electronic reference)
Maximum voltage 12 Vp-p into 10 Ω
Operating frequency 20 Hz to 6 MHz
Bandwidth
8 Hz to 5 kHz (in single coil). Inversely propor-
tional to the time-slot duration and set by the
instrument in multiplexed mode.
Receiver
Number of receivers 1 to 4
Maximum input signal 1 Vp-p
Gain 28 dB to 68 dB
Internal multiplexer
Number of generators
32 (4 simultaneously
on 8 time slots; up
to 64 with external
multiplexer)
N/A
Maximum voltage 12 Vp-p into 50 Ω
Number of receivers
4 differential receivers
(8 time slots each)
Maximum input signal 1 Vp-p
Data acquisition
Digitizing frequency 40 MHz
Acquisition rate
1 Hz to 15 kHz (in single coil). The rate can
be limited by the instrument’s processing
capabilities or by delays set by the multiplexed
excitation mode.
A/D resolution 16 bits
Data processing
Phase rotation 0° to 360° with increments of 0.1°
Filtering
FIR low-pass, FIR high-pass, FIR band-pass,
FIR band-stop (adjustable cutoff frequency),
median filter (variable from 2 points to 200
points), mean filter (variable from 2 points to
200 points)
Channel processing Mixing
Data storage
Maximum file size
Limited to available internal flash memory:
180 MB (or 300 MB optional)
Data synchronization
On internal clock 1 Hz to 15 kHz (single coil)
External pace Yes
On encoder On 1 or 2 axes
Alarms
Number of alarms 3
Alarm zone shape Pie, inverted pie, box, inverted box, and ring
Output type Visual, audio, and TTL signals
Analog outputs 1 (X or Y)