Olympus OmniScan MX, Руководство пользователя

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DMTA-20015-01EN [U8778402], Rev. M, February 2017
OMNI-M-PA16128PR Module Specifications 159
H.2 Acquisition Specifications
This section details the acquisition specifications of frequency, data display, and
synchronization (see Table 50 on page 159).
System bandwidth 0.75 MHz to 18 MHz ( − 3 dB)
Beam formation
Scan type Sectorial and linear
Aperture 16 elements
Number of elements 128 elements
Number of focal laws 256
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
Table 50 Acquisition specifications — OMNI-M-PA16128PR
Frequency
Digitizing frequency 100 MHz (10 bits)
A-scan (acquisition
mode) Up to 6000 A-scans per second (512-point,
8-bit A-scan)
Maximum pulsing rate Up to 10 kHz (C-scan).
Depth in material 59.8 meters in steel (longitudinal wave),
10 ms with compression
0.49 meter in steel (longitudinal wave),
81.9 µs without compression
Display
Refresh rate A-scan: 60 Hz; S-scan: 20 Hz to 30 Hz
Envelope (echo-dynamic
mode) Yes: Volume-corrected S-scan (30 Hz)
Synchronization
On internal clock 1 Hz to 10 kHz
External pace Yes
On encoder On 2 axes: from 1 to 65536 steps
Table 49 Acoustic specifications — OMNI-M-PA16128PR (continued)