Olympus TomoScan FOCUS LT - Specifications of Recorded Data; Table 11 Specifications of Recorded Data

To Next Page

To Previous Page

DMTA041-01EN [U8778479], Rev. C, May 2014

Chapter 5

5.3 Specifications of Recorded Data

Table 11 Specifications of recorded data

Category Specification Va lu e

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,

halfwave+, 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 1dB

Trigger Pulser, echo

Number of points 256