The document provides an overview of commonly used biomedical signals for monitoring physiological processes and detecting pathological conditions. It discusses several key signals including the electrocardiogram (ECG), electroencephalogram (EEG), electromyogram (EMG), electroretinogram (ERG), electrooculogram (EOG) and event-related potentials (ERPs). For each signal, it describes what physiological process is being measured, how the signal is recorded, its typical amplitude and bandwidth, main sources of interference and common applications. The document emphasizes that biomedical signals reflect the electrical, chemical and mechanical activities of cells, tissues and organs, and can provide important diagnostic information when analyzed.
Graphic record heart sound - Phonogram.
Recording the sounds connected with the pumping action of heart.
Sound from heart – phonocardiogram
Instrument to measure this – phonocardiograph
Basic function – to pick up the different heart sound,filter the required and display.
A Bioamplifier is an electrophysiological device, a variation of the instrumentation amplifier, used to gather and increase the signal integrity of physiologic electrical activity for output to various sources. It may be an independent unit, or integrated into the electrodes.
Biomedical Instrumentation and its Fundamentals,Bio electric Signals(ECG, EMG ,EEG)and its Electrodes ,Physiological Transducers,Blood Pressure ,Blood Flow,Cardiac Output ,Patient Safety,Physiological Effects of Electric current on human body etc...
Graphic record heart sound - Phonogram.
Recording the sounds connected with the pumping action of heart.
Sound from heart – phonocardiogram
Instrument to measure this – phonocardiograph
Basic function – to pick up the different heart sound,filter the required and display.
A Bioamplifier is an electrophysiological device, a variation of the instrumentation amplifier, used to gather and increase the signal integrity of physiologic electrical activity for output to various sources. It may be an independent unit, or integrated into the electrodes.
Biomedical Instrumentation and its Fundamentals,Bio electric Signals(ECG, EMG ,EEG)and its Electrodes ,Physiological Transducers,Blood Pressure ,Blood Flow,Cardiac Output ,Patient Safety,Physiological Effects of Electric current on human body etc...
Discussion of Bioelectrodes, types of electrodes, their materials, bio potentials and their electrodes used. Special electrodes and their designs are discussed.
You can learn about Function of Respiratoray System, Types of Respiration Rate Measurement Methods, Displacement Method, Thermistor Method, Impedance Pneumography, CO2 Method, Apnoea Detector, Block Diagram of Apnoea Detecto
The Action and resting potential of the body are discussed. The working of body cell, tissue and how the electrical activity of body cell done? are discussed.
MEASUREMENT OF BIO POTENTIAL USING TWO ELECTRODES AND RECORDING PROBLEMSBharathasreejaG
YOU CAN LEARN ABOUT MEASUREMENT USING TWO ELECTRODES & RECORDING PROBLEMS# NEED OF MEDICAL RECORDING # ELECTRODE TO SKIN INTERFACE # NERNST EQUATION # NOISE DURING RECORDING# MOTION ARTIFACT# ELECTRODE TO ELECTROLYTE NOISE # ELECTROLYTE TO SKIN NOISE# THERMAL NOISE# AMPLIFICATION NOISE# CABLE MOVEMENT# OTHER NOISES # CODING FOR GENERATING NOISE
Discussion of Bioelectrodes, types of electrodes, their materials, bio potentials and their electrodes used. Special electrodes and their designs are discussed.
You can learn about Function of Respiratoray System, Types of Respiration Rate Measurement Methods, Displacement Method, Thermistor Method, Impedance Pneumography, CO2 Method, Apnoea Detector, Block Diagram of Apnoea Detecto
The Action and resting potential of the body are discussed. The working of body cell, tissue and how the electrical activity of body cell done? are discussed.
MEASUREMENT OF BIO POTENTIAL USING TWO ELECTRODES AND RECORDING PROBLEMSBharathasreejaG
YOU CAN LEARN ABOUT MEASUREMENT USING TWO ELECTRODES & RECORDING PROBLEMS# NEED OF MEDICAL RECORDING # ELECTRODE TO SKIN INTERFACE # NERNST EQUATION # NOISE DURING RECORDING# MOTION ARTIFACT# ELECTRODE TO ELECTROLYTE NOISE # ELECTROLYTE TO SKIN NOISE# THERMAL NOISE# AMPLIFICATION NOISE# CABLE MOVEMENT# OTHER NOISES # CODING FOR GENERATING NOISE
Bio-Sensors & their Working Principle
Application of Bio-Sensors in the field of Electrical
EMG
ECG
EEG
Implementation target for Robotic Arm
Conclusion
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
3. Nature of
Biomedical Signals
Living organisms are made of many systems – e.g. human body:
Nervous, cardiovascular, gastrointestinal, endocrine, respiratory, etc.
Each system is made of subsystems (organs, tissues, etc.) that are responsible for certain
physiological processes
Cardiovascular system pumps blood to deliver nutrients to the body
Each physiological process is associated with certain types of signals that
reflect their nature and activities
Such signals can be of different types:
Biochemical --------hormones, neurotransmitters
Electrical ------------potentials, currents
Mechanical---------- pressure, temperature
Any deviation of these signals from their normal parameters typically
represents a disease / disorders --------- pathological condition
Observing these signals and comparing them to their known norms, we can
often detect these pathological conditions
4. Some Commonly
Used Biomedical Signals
The action potential – mother of all biological signals
The electroneurogram (ENG) – propagation of nerve action potential
The electromyogram (EMG) – electrical activity of the muscle cells
The electrocardiogram (ECG) – electrical activity of the heart / cardiac cells
The electroencephalogram (EEG) – electrical activity of the brain
The electrogastogram (EGG) – electrical activity of the stomach
The phonocardiogram (PCG) – audio recording of the heart’s mechanical activity
The electoretinogram (ERG) – electrical activity of the retinal cells
The electrooculogram (EOG) – electrical activity of the eye muscles
5. The Action Potential
The action potential is the origin of all biopotentials
All biological signals of electrical origin are made up from integration of many
action potentials
The AP is the electrical signal that is generated by a single cell when it is
mechanically, electrically or chemically stimulated
It is the primary mechanism through which electrical signals propagate between
cells, tissues and organs.
It is due in part, to an electrochemical imbalance across the cell membrane, and in
part, due to selective permeability of the membrane to certain ions
• At resting state, the cell membrane is permeable to K+ and Cl-, but not to Na+
• Lots of Na+ trapped outside make the intracellular region electrically more negative,
with a resting membrane potential of -60 ~-80 mV
• When the cell is disturbed, ion channels across the membrane open up and allow an
influx of Na+ : depolarization inside of the cell becomes more positive: +20mV
• However, the channels close soon after, forcing the membrane potential back to its
resting stage: repolarization
• The change in membrane potential is the AP, which itself then stimulates the
neighboring cell, and starts the transmission of the APs
11. Objective of biomedical signal
analysis
• Information gathering - measurement of phenomena to interpret a system.
• Diagnosis - detection of malfunction, pathology, or abnormality.
• Monitoring - obtaining continuous or periodic information about a system.
• Therapy and control - modification of the behavior of a system based upon
• the outcome of the activities listed above to ensure a specific result.
• Evaluation - objective analysis to determine the ability to meet functional
requirements, obtain proof of performance, perform quality control, or quantify
the effect of treatment.
17. The Electromyogram -EMG
The EMG is the graphic
representation of the
electrical activity of the
skeletal muscles – either
during resting stage, or in
response to stimulation
Unlike AP which is
measured on the cellular
level, the EMG is a
surface signal
obtained through surface
and/or needle electrodes
18. • Measures the electric activity of active muscle fibers
• Electrodes are always connected very close to the muscle
group being measured
• Rectified and integrated EMG signal gives rough indication
of the muscle activity
• Needle electrodes can be used to measure individual muscle fibers
• Amplitude: 1-10 mV
• Bandwidth: 20-3000 Hz
• Main sources of errors are 50/60 Hz and RF interference
• Applications: muscle function, neuromuscular disease, prosthesis
20. The Electrocardiogram - ECG
ECG is the graphical recording of the
electrical activity of the heart
ECG can be obtained easily using
surface electrodes.
As with other electrical signals of
biological origin, it is the combination
of many
APs from different regions of the
heart that makes up the ECG
Its characteristic shape is widely
recognized.
Any abnormality in the cardiovascular
dynamics manifests itself as an
arrhythmia in the ECG
25. The Electroencephalogram
EEG
• Measures the brain’s electric activity from the scalp
• Measured signal results from the activity of billions of neurons
• Amplitude:0.001-0.01 Mv
• Bandwidth:0.5-40 Hz
• Errors:
– Thermal RF noise
– 50/60 Hz power lines
– Blink artifacts and similar
• Typical applications:
– Sleep studies
– Seizure detection
– Cortical mapping
29. The Electrooculogram
EOG
The EOG measures
the resting potential of
the retina. Unlike
ERG it is not recorded
in response to a
stimulus.
The EOG is often
used in recording the
eye-movements
30. Electrooculography (EOG)
• Electric potentials are created as a result
of the movement of the eyeballs
• Potential varies in proportion to the
amplitude of the movement
• In many ways a challenging measurement
with some clinical value
• Amplitude: 0.01-0.1 mV
• Bandwidth: DC-10 Hz
31. • Primary sources of error include skin
potential and motion
• Applications: eye position, sleep state,
vestibulo-ocular reflex
33. The Event Related
Potentials - ERPs
ERPs are really EEGs obtained under a specific
protocol that requires the patient to response to
certain stimuli – hence event related potentials.
Also called evoked potentials these signals can
be used to diagnose certain neurological
disorders.
they can also be used as a lie detector
34. Electroretinogram
ERG
The ERG is the record of the
retinal action currents
produced by the retina in
response to a light stimulus.
It measures the electrical
responses of the light-sensitive
cells (such as rods and cones).
The stimuli are often a series
of light flashes or rotating
patterns
The ERG is recorded using
contact lens electrode that the
subject wears while watching
the stimuli.
35. Baseline drift due to the
changes in junction
potential or motion artifacts
Choice of electrodes
Electromagnetic
interference
Shielding
ARTIFACT (Interference)
Muscle signal
interference
Placement