Olympus TomoScan FOCUS LT, User Manual

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DMTA041-01EN [U8778479], Rev. C, May 2014
Chapter 5 54
5.3 Specifications of Recorded Data
Table 11 Specifications of recorded data
Category Specification Value
Data acquisition
and processing Digitizing frequency 1.5625, 3.125, 6.25, 12.5, 25, 50, and 100 MHz,
resolution of 8 bits or 12 bits
A-scan length 32 to 8192 samples
Acquisition depth Without compression: 320 ns to 81.92 µs
in 40 ns steps
With compression: up to 9.9 ns
in 40 ns steps
Number of focal laws 256
Acquisition modes Free running, encoder position, external
signal
Synchronization modes Pulser, surface echo, external trigger
A-scan recording Up to 8000 A-scans/s (512 samples of 8 bits)
C-scan data Up to 20 kHz (four measurement gates plus
synchronization gate)
Data transfer Up to 4.0 MB/s
(8000 A-scans/s [512 samples of 8 bits])
Pulse repetition
frequency Minimum 1 Hz
Real-time averaging 1, 2, 4, 8, and 16
Rectification None (RF [remote field]), full wave,
h, halfwave–
Video filtering Smoothing (adjusted to probe frequency
range)
Compression rate Up to 255 (available only with digitizing
frequency of 100 MHz)
Time-Corrected
Gain (TCG) Dynamic range Max. 74 dB with 0 dB of gain, ±0.1 dB
Maximum slope 20 dB/µs
Resolution 1 dB
Trigger Pulser, echo
Number of points 256