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HIGH SCHOOL

Engineering

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Electrical Engineering

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Operational Amplifiers

Instrumentation Amplifier

Description

An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily over...

Transcript

In an electrocardiography machine, electrodes detect small electrical changes on the skin resulting from heart muscle depolarization during each heartbeat.

These microvolt-range signals can be overwhelmed by noise or interference.

To rectify this, the ECG machine uses an instrumentation amplifier to amplify the ECG waveform while m...

Tags

Instrumentation AmplifierECG MachineCommon Mode Rejection RatioHigh Input ImpedanceGain AdjustmentBiomedical InstrumentationDifference AmplifierExternal ResistorVoltage GainSignal Amplification