CX1000 B type ultrasonic diagnostic instrument demonstrator technical parameters
One: General requirements
1: for the convenience of teaching machine into the digital board and the analog board two parts.
2: the instrument panel failure setting and signal test point plug, convenient for teaching.
Two: analog part
1: the panel has a part of the schematic diagram, and marked with the launch of the trigger signal, the high voltage pulse signal, the probe switch high voltage signal, the probe echo signal test point.
2: can test the echo signal of the primary signal.
3: using analog delay line to achieve the receiving focus, and can test the variable aperture control signal, the primary beam synthetic signal.
4: independent dynamic filter circuit, can test the different parameters of the filter effect and display the relationship between the image.
5: the TGC circuit, the TGC control and the amplification factor, can be tested independently.
6: the need to understand the logarithmic compression of the logarithmic compression circuit alone. Can be tested independently of the logarithmic compression coefficient.
7: the detection circuit, do detection experiments alone, understand the process of demodulation.
8: edge enhancement circuit, can be done alone edge enhancement experiments.
9: the echo signal output filter, alone to see the ultrasonic echo signal waveform. Can let the students see the echo signal of different media.
Three: digital part
1: single chip part of the signal testing, can test the signal related to the microcontroller, the microcontroller state in different mode.
Key signal testing experiment of 2:AD transform and frame correlation signal processing.
3:DSC transform partial signal test.
4: single chip microcomputer and character graphics part of the experiment.
5: test images and graphics after the synthesis of the signal.
6:DA transform and video output.
7: transmit signal, variable aperture signal, high voltage switch control signal test.
8:EFC signal, TGC signal output, testing the relationship between the two control signals and image changes.
9:VGA signal, composite video signal, pseudo color signal test.
Four: General technical parameters
1 scan mode: electronic scanning.
2 probe head: 3.5MHz (80 element) electronic convex array probe.
3 display mode: B, B/B, B/M, M.
4 display device: 21cm LCD color display.
5 focus mode: fully automatic seventeen stage dynamic focusing and sound lens.
6 dynamic variable aperture.
7 image processing: 8 frame correlation processing; 8 kinds of gamma correction processing; the first processing, interpolation processing.
8 image magnification: x 1, x 1.2, x 1.5, X 2.
9 image display: left and right, the upper and lower image flip, pseudo color encoding.
10 body posture: 16 kinds of icons (10 adult, 6 fetal).
11 input power: 100VA.
12 power supply has over voltage, over current and power protection function.