1 Answer
An ECG (Electrocardiogram) is not exactly a galvanometer, but it works on a similar principle.
A galvanometer is a sensitive instrument used to detect and measure small electrical currents. It typically consists of a coil suspended in a magnetic field, and when current flows through the coil, it deflects, indicating the amount of current.
An ECG, on the other hand, is a medical device that measures the electrical activity of the heart. It records the electrical signals generated by the heart muscle as it contracts and relaxes. While an ECG system might use a galvanometer (or a similar device) to detect and display electrical signals, the key difference is that an ECG specifically measures the heart's electrical impulses and uses this information to produce a graphical representation (the ECG trace).
In short, while both work with electrical currents, an ECG is designed to measure the heart's electrical activity, and a galvanometer is a more general-purpose device for detecting electrical currents.
A galvanometer is a sensitive instrument used to detect and measure small electrical currents. It typically consists of a coil suspended in a magnetic field, and when current flows through the coil, it deflects, indicating the amount of current.
An ECG, on the other hand, is a medical device that measures the electrical activity of the heart. It records the electrical signals generated by the heart muscle as it contracts and relaxes. While an ECG system might use a galvanometer (or a similar device) to detect and display electrical signals, the key difference is that an ECG specifically measures the heart's electrical impulses and uses this information to produce a graphical representation (the ECG trace).
In short, while both work with electrical currents, an ECG is designed to measure the heart's electrical activity, and a galvanometer is a more general-purpose device for detecting electrical currents.