Tag: Biomedical sensors
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Types of Transducers used in Biomedical Measurement Applications
What is a transducer? A transducer is a device that converts one form of energy or variable into another form of energy or variable. A transducer is required to convert physiological variables into electrical signals which are easier to be further processed. We have a number of factors which are considered in choice of a…
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Blood Pressure Measurement
Introduction The blood pressure is considered a good indicator of the status of the cardiovascular system. The blood pressure can be measured by: Indirect methods of Blood Pressure Measurement Examples of indirect methods of blood pressure measurement include: Sphygmomanometer In this method the occlusive cuff is inflated until the pressure exerted by the cuff on…
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Blood Flow Measurement
Introduction Blood flow can easily be measured by using biomedical instruments. These biomedical instruments are based on several working principles namely: The magnetic and ultrasound blood flow meters actually measure the velocity of the blood stream. A transducer is used that envelope an excised blood vessel to measure the mean velocity of the blood stream.…