Signal amplifier for portable detection system of electroretinogram (ERG)
A technology of signal amplifier and electroretinogram, which is applied in the direction of eye testing equipment, sensors, diagnostic recording/measurement, etc., which can solve the problems of complex equipment, signal processing, and large impact, and achieve simple structure, easy to carry and use, and small size Effect
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[0042] In order to make the technical means realized by the present invention clear, the present invention is further described in conjunction with the accompanying drawings.
[0043] Such as figure 1 As shown, the present invention is a signal amplifier of a portable electroretinogram (ERG) detection system, including 2 gain adjustment knobs 3 and 31, a signal amplification circuit, 2 detection electrode magnetic interfaces 6 and 61, and reference electrodes 2, 1 A reference electrode magnetic interface, a common reference electrode interface 4, two detection electrodes 5 and 51, output plugs 1 and 11, wherein: the two gain adjustment knobs 3 and 31 correspond to the electrical signals of the two detection electrodes 5 and 51 respectively , used to adjust the different amplification factors of the signal;
[0044] The signal amplification circuit is arranged inside the signal amplifier and is used to amplify the electrical signal detected by the detection electrode;
[004...
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