А1020 MIRA Lite Low-Frequency Ultrasonic Tomograph
Operation Manual
16
ACOUSTIC
CONTROL
SYSTEMS
The MAP mode is used for generation of the data array of the В Scan type set of the tested object (perpendicular to the
surface) when scanning along the previously marked lines with a fixed-length step. The image of every B-Scan can be displayed
on the screen from the accumulated three-dimensional data set.
The SETUP mode is used for selection and adjustment of the device parameters.
1.3.6 Data processing and indication on the screen of the tomograph
The procedure of the synthesizing focused aperture with combinational sounding (SAFT К) is used in the device in which
the ultrasound is focused at each point of the half-space. The data sets (arrays) are formed by collecting information from
all measuring pairs of the tomograph antenna assembly. In the course of work the internal computer processes the signals
received by the antenna array in the real time. Thereupon the data received are displayed on the screen and further stored in
the device memory. As a result, a cross-sectional image of the tested object (В Scan) is formed. The reflecting property of each
point of the visualized section is encoded in different colors. The data collection and indication of the cross-sectional image on
the screen in one array position takes 5 seconds.
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