Podcast
Questions and Answers
What is the purpose of a voltage follower?
What is the purpose of a voltage follower?
To have a gain of 1 and output voltage that follows the input voltage.
What are the main characteristics of an instrumentation amplifier?
What are the main characteristics of an instrumentation amplifier?
High input impedance, high CMRR, and high gain.
What is the function of a pacemaker?
What is the function of a pacemaker?
To produce periodic electric pulses to stimulate the heart.
What is one benefit of using an instrumentation amplifier?
What is one benefit of using an instrumentation amplifier?
Signup and view all the answers
How many channels are there in the TI ADS1298 ECG circuit?
How many channels are there in the TI ADS1298 ECG circuit?
Signup and view all the answers
What is the half-cell potential of the Ag/AgCl electrode used in the laboratory study?
What is the half-cell potential of the Ag/AgCl electrode used in the laboratory study?
Signup and view all the answers
When measuring the dc voltage between the test electrode and the Ag/AgCl electrode, what voltage is observed with the test electrode being negative?
When measuring the dc voltage between the test electrode and the Ag/AgCl electrode, what voltage is observed with the test electrode being negative?
Signup and view all the answers
What is the circuit model for the electrode based on the impedance measurements at very low currents?
What is the circuit model for the electrode based on the impedance measurements at very low currents?
Signup and view all the answers
What does the equation 𝑰 = 𝟏𝟎𝟎𝒆−𝒕Τ𝟏𝟎 represent in the context of the AgCl layer growth on the Ag electrode?
What does the equation 𝑰 = 𝟏𝟎𝟎𝒆−𝒕Τ𝟏𝟎 represent in the context of the AgCl layer growth on the Ag electrode?
Signup and view all the answers
If the reaction runs for a long period so the current at the end is essentially zero, how much charge is removed from the battery?
If the reaction runs for a long period so the current at the end is essentially zero, how much charge is removed from the battery?
Signup and view all the answers
How many grams of AgCl are deposited on the Ag electrode's surface during the reaction?
How many grams of AgCl are deposited on the Ag electrode's surface during the reaction?
Signup and view all the answers
What solution is the chloride electrode placed into for the subsequent experiment mentioned?
What solution is the chloride electrode placed into for the subsequent experiment mentioned?
Signup and view all the answers
What current density was used to deposit the AgCl layer to achieve the lowest electrode-electrolyte impedance?
What current density was used to deposit the AgCl layer to achieve the lowest electrode-electrolyte impedance?
Signup and view all the answers
At what current density was the AgCl layer deposited with a current density of 5 mA/cm2?
At what current density was the AgCl layer deposited with a current density of 5 mA/cm2?
Signup and view all the answers
What is the significance of measuring impedance at very low currents in electrode studies?
What is the significance of measuring impedance at very low currents in electrode studies?
Signup and view all the answers
