Assignment 5.0 | Assignment

University:
California State University, Northridge
Course:
CHEM 100 | Principles of Chemistry
Academic year:

2024
Views:

68

Pages:

3
Author:

customer-9045067

Assignment - 05.0 Date: Ques Explain the theary of electrade-electrolyte interfaat Inst Theary of electrade - electrolyte interfacet when a metal electrode contact an electrolyte. (Body fluid), charge transfer occur. An electrical double layer form at the interface Lions+ electrons). This Creates a half-cell potentialt Two mechanisms Faradaic process actual charge transfer (redox reaction). Non-Earadaic process charge Storage. (cofacitive effect). Interface Behave like a combination of resistance + Capacitance. Qus-2 Describe the warking principle of Bispstential electrodest Ans-2 working principle of Bispatential Electrades :- Converts ionic currents (Body) electranic Current (instrument). wark Based on electrical electrode - electrolyte interface potential. Steps Bady generates Bispatentials (ECG, EEG, EMG). Electrolyte gel ensures good conduction. Electrade converts jonic Signals into electrical Signals. Signal is amplified and recorded. Act as a transducert Ques 3 Compare Surface electrades, needle electrodes and microelectrodest Ans-3. Feature Surface electrades Noodle electrodes Microelectrodes Placement on Skin inserted into tissue Inside Single cell Invasiveness Non-Invasive Invasive Highly invasive Signal Low amplitude, noisy Better acurag very precise Use ECG, EEG EMG Neural recording Size Large Medium Very Small Ques-4 Explain the construction and application of Ag/AgCl, electrodes Ans-Y Constructiont Silver (Ag) Base Coated with silver chloride (AgCl). Electrolyte gel (ctions). Backing material + lead wire. * warking Reaction Ag+ C = Aglete Provides Stable and low noise Signal. ☆ Applicationt ECG, EEG, EMG Patient, monitoring System. Biomedical research. Ques-5 Discuss the characterstics of ideal Biomedical electrodes? Ans-5 Characterstics of ideal Biomedical Electrodest Low contact impedance. Stable chalf-cell potential. Low noise and drift. Non-polarizable (minimal Polarization). Biscompatible (no Skin irritation). Mechanical Stability (firm contact). Reusable or disposable as needed. good Signal to noise ratio.