EDAN DUS 60 - Page 50

DUS 60 Digital Ultrasonic Diagnostic Imaging System Service Manual
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Figure 4-1 Principle Block Diagram
 The following technologies were adopted in this equipment, which achieves wider focus area
and richer information in image:
 This device adopts 4-sector dynamic focusing which can be combined conveniently and
provides higher resolving power.
 Pretreatments to echoes are implemented, such as dynamic low-noise preamplifier,
dynamic logarithm compressing, TGC control, filtering and so on.
 Some digital related processing is adopted, such as gamma correction curves,
pretreatment, frame correlation, line correlation, Digital Scanning Conversion,
post-processing (sharpening and data insertion) and so on.
 Many functions are adopted, for example, the system can flip images up and down, and
flip left and right, the depth can be adjusted, and it can also CINE Review. High
frequency generator ensures the best resolution of the image.
 Probe of high density and wide frequency bandwidth improves the image quality greatly.
 Alternating current is adopted, which brings the power with good applicability.
 Keyboard is well-designed according with man-machine principle, which fits user’s
requirement much better.