Tag: Biomedical Instrumentation
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Electrocardiogram (ECG)
The recording of the electrical activity associated with the functioning of the heart is known as Electrocardiogram. ECG is quasi-periodical, rhythmically repeating signal synchronized by the function of the heart; which acts as a generator of bioelectric events. This generated signal can be described by means of a simple electric dipole (pole consisting of a…
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Types of Bioelectrodes
Introduction Bioelectric events have to be picked up from the surface of the body before they can be put to the amplifier for subsequent record or display. This is done by use of electrodes. The potentials produced at different points are measured by placing electrodes at various points on the body. They carry the currents…
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Sources of Biomedical Signals
Biomedical signals/physiological signals are those signals (phenomenon that conveys information) which are used primarily for extracting information on a biological system under investigation. Our body produces various physiological signals. The accessibility to these signals is important because these signals: All physiological signals can grouped as: A transducer converts a physical signal into an electrical output.…
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The Introduction to Biomedical Instrumentation
Introduction Biomedical Instrumentation deals with the measurement and analysis of current or voltage signals from different parts of the body. The human body generates a variety of voltages which are usually very small. Biomedical instrumentation helps medical personnel or physicians to make a better diagnose of the problem in a patient and provide the appropriate…