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Electronics: Basic to clinical Karl E Misulis MD,PhD.

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Presentation on theme: "Electronics: Basic to clinical Karl E Misulis MD,PhD."— Presentation transcript:

1 Electronics: Basic to clinical Karl E Misulis MD,PhD

2 Basic Electronics for Neurology Electricity and basic circuit theory Filters and amplifiers Digital signal analysis Displays Electrodes Artifacts and noise Electrical safety

3 Frequency composition of signals

4 RC Circuit

5 RC circuit

6 Time constant

7

8 Semiconductors Construction Function of semiconductors “semi-conduct” Junction effects Use in diodes and transistors

9 Semiconductors

10 Diodes

11 Transistor Transfer - resistor Nobel prize for Bell labs

12 Transistors

13 Amplifiers

14 Single v. differential amplifier

15 EEG amplifier - LB montage

16 Analog and digital systems

17 Analog-to-digital conversion

18 Binary encoding 2 12 = 4096

19 Averaging: Signal-to-noise ratio

20 Artifact rejection

21 Aliasing

22 Electrode - amplifier interface

23 Electrode theory

24 Minimize noise Equal electrode impedances Short leads Avoid proximity of AC and leads


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