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Basics and Descriptions of Different Biomedical Signals

Basics and Descriptions of Different Biomedical Signals

Macha Sarada (Jawaharlal Nehru Technological University, Hyderabad, India)
Copyright: © 2022 |Pages: 25
DOI: 10.4018/978-1-6684-3947-0.ch001
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Abstract

In the current digital era, many sensor-based devices and application are used for better life. Sensors, which are embedded in touchscreens and touchpads, are tactile in nature. These sensors acquire data from the environment that are converted into an electrical signal for further processing in the sensor system. The main aim of sensors is to estimate a specific quantity and generate a signal for interpretation. The human body constantly conveys health information that reflects the condition of organs and general health information. Such health information is typically collected by physical devices that measure different types of information such as blood sugar levels, blood pressure, heart rate, nerve condition, and brain activity. Doctors use these measurements to make diagnostic and treatment decisions. Engineers are implementing new acquisition devices that noninvasively measure different types of signals for further analysis using mathematical algorithms and formulae to develop models. This chapter includes the basics and description of different biomedical signals.
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Biomedical Sensors

Sensors of biomedical are distinct electronic devices that can convert biomedical impulses into easily quantifiable electric signals. Biomedical sensors are the crucial components in wide range of medical diagnostic tools and equipment. Wide range of inventions and discoveries in biomedical, chemical, physical, acoustic and electronic materials have tremendously gained prominence in biomedical sensor applications such as microstructure, micronano implantable probes, screening sensors, drug analysis and integrated cell molecular detection sensors.. Medical image analysis and diagnostics portable and clinical diagnostics and laboratory analytical applications have all made extensive use of biomedical sensors. Biomedical sensors are classified into biosensor, chemical sensor, and physical sensors as illustrated as Figure 1 (Ronkainen N et.al.,,2010,Scheller F et.al 1989, Rodriguez-Mozaz S et.al 2004).

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    Chemical sensors to sense enzymes, hormone, antibody, antigen, microbes and detect biological signals. These sensors are used to identify the concentration and ingredient of liquids in the body.

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    Physical sensors to sense to measure mechanical, hydraulic, geometric and thermal variables such as such as muscle displacement, growth velocity, bone growth velocity, blood viscosity, blood flux, blood flow, blood pressure and body temperature.

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