VE28

VISUAL ELECTRO

Configuration:

Digital biological signal magnifier (1)
Desk full range program controlled flash stimulator (1)
Digital colour picture stimulator (1)
Special electrophysiological A/D card (1)
Special software for AVES-8000 (1set)
Picture control card (1 set)
Jet printer (1)
Blinker (1)
Electrode (1 set)

Technical parameters:

Magnifier

Common mode rejection:≥120dB

Input impedance:≥100M12PF

Input short circuit noise: Vp-p≤2.0

Plus: 1-20k, 8 grades of programmed control

Frequency band: 0.1-500Hz 8 grades of programmed control

Picture stimulator

Stimulating colour: red, yellow, blue, green, and white

Mode of stimulation: chessboard grid, standing bar, matrix andbanner.

Stimulating zone: A total of 12 modes including up/down,left/right, central, full field, up, down, left, right top, left top, leftbottom, right bottom.

Space frequency: 0.04, 0.09, 0.19, 0.38, 0.77, 1.55, 3.10

Dual Comparison: 40% 50% 60% 70% 80% 90% 100%

Flash stimulator

Stimulating light colour: Red, yellow, blue, green and white

Flash frequency: 0.2-30Hz

EOG stimulating source :±15degree red light and audio prompt

Flash strength: (cd*s/m2)

6.325e4 1.125e-3 2.000e-3 3.556e-3 6.325e-3
1.125e-2 2.000e-2 3.556e-2 6.325e-2 1.125e-1
2.000e-1 3.556e-1 6.325e-1 1.125 2.000

Brightness of background light cd/m2

0. 949, 1.687, 3.000, 5.335, 9.487, 16.870, 30.000