Bakalaureusetöödest 11.04.2012. Saatja-vastuvõtja tüüpi Foucault’ kardiograafi vastuvõtuploki ehitamine Title of the work: Design of the Derector block.

Slides:



Advertisements
Similar presentations
CE ELECTRICAL PRINCIPLES STEADY STATE ANALYSIS OF SINGLE PHASE CIRCUITS UNDER SINUSOIDAL EXCITATION 1 Steady State response of Pure R,L and C &
Advertisements

Introductory Circuit Analysis Robert L. Boylestad
Copyright ©2011, ©2008, ©2005 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved. Electric Circuits, Ninth Edition James.
COMMUNICATION SYSTEM EEEB453 Chapter 3 (III) ANGLE MODULATION
EMLAB 1 4. Linear wire antenna. EMLAB 2 Simulation of dipole antennas.
[1] Gold, G. et al., Proc. ISMRM, 84, [2] Scott, G. et al., Proc. ISMRM, 20, [3] Atalar, E. et al., MRM, 36: 596, [4] Quick, H. et al.,
POWER ELECTRONICS Instructor: Eng. Jalal Al Roumy The Islamic University of Gaza Faculty of Engineering Electrical Engineering Department بسم الله الرحمن.
Principles of Electronic Communication Systems
The resistance measured by Wheatstone electric bridge School of Electronics & Applied Physics, Hefei University of Technology.
As the frequency supplied by the generator drops lower, (1) bulb A brightens, bulb B dims. (2) bulb A brightens, bulb B remains unchanged. (3) bulb A dims,
Principles of Electronic Communication Systems
Chapter 6 FM Circuits.
Problem Solving Part 2 Resonance.
Lecture 6: Measurements of Inductance, Capacitance, Phase, and Frequency 1.
Fall 2008 Physics 121 Practice Problem Solutions 13 Electromagnetic Oscillations AC Circuits Contents: 121P13 - 2P, 3P, 9P, 33P, 34P, 36P, 49P, 51P, 60P,
Aaron N. Parks Prof. Joshua R. Smith Sensor Systems Laboratory Dept
Self-Inductance When the switch is closed, the current does not immediately reach its maximum value Faraday’s law can be used to describe the effect.
Chapter Two: Radio-Frequency Circuits. Introduction There is a need to modulate a signal using an information signal This signal is referred to as a baseband.
TRISHUL Winding Solutions Pvt Ltd. CHOKE COIL A choke coil is a part used in electrical circuits to allow DC current to flow through the circuits without.
RLC circuits To understand an RLC circuit let us first discuss LC circuits For a Series LC circuit there is a special frequency at which Impedance of the.
Chapter 35.
Rotating Generators and Faraday’s Law 0 For N loops of wire.
Oscillators with LC Feedback Circuits. LC Feedback elements are used for the generation of higher frequencies of oscillation. Because of lower unity gain.
Phys 272 Alternating Current. A.C. Versus D.C (Natural) Frequency, Period, etc…
An Opening in the Abdomen An Opening in the Market: Hernia Tensiometer GROUP 2: Martha Ingram Megan Johnston Chelsea Samson.
Chapter 23 Alternating Current Circuits Capacitors and Capacitive Reactance The resistance in a purely resistive circuit has the same value at all.
Influence of Pacing Lead Design on MRI-Induced Lead Heating Presenter: Stuart MacDonald VP Research and Development Heart Rhythm 2006 Boston, MA May 18,
Storey: Electrical & Electronic Systems © Pearson Education Limited 2004 OHT 15.1 Alternating Voltages and Currents  Introduction  Voltage and Current.
McGraw-Hill © 2008 The McGraw-Hill Companies, Inc. All rights reserved. Principles of Electronic Communication Systems FM Circuits.
LC CURCUIT LC CURCUIT PRESENTED TO PRESENTED TO SIR TARIQ SIR TARIQ PRESENTED BY PRESENTED BY JAMEELA JAMEELA ROLL NO ROLL NO
DC & AC BRIDGES Part 2 (AC Bridge).
By Abner Molina UTA REU Summer 2013 Group: Dr. Chiao Midterm Presentation Date: 7/9/2013 WIRELESS POWER TRANSMISSION.
1 ENE 428 Microwave Engineering Lecture 11 Excitation of Waveguides and Microwave Resonator.
Alternating Current (AC)
Alternating-Current Circuits Physics Alternating current is commonly used everyday in homes and businesses throughout the word to power various.
Proximity sensors Optical – Through-beam Inductive Capacitive
Lecture 6: Measurements of Inductance, Capacitance, Phase, and Frequency 1.
FM GENERATION Direct Method: when the frequency of carrier is modulated by information signal Indirect Method: when the phase of carrier is modulated.
Sanna Taking & Mohamad Nazri Abdul Halif School of Microelectronic Engineering Prepared by DC & AC BRIDGES Part 2 (AC Bridge) Syarifah Norfaezah Edited.
Chapter 5 – Oscillators – Part 2
CommunicationElectronics Principles & Applications Chapter 5 Frequency Modulation Circuits.
Impedance is the measure of the opposition that a circuit presents to the passage of a current when a voltage is applied. In quantitative terms, it is.
A WIRELESS PASSIVE SENSOR FOR TEMPERATURE COMPENSATED REMOTE PH MONITORING IEEE SENSORS JOURNAL VOLUME 13, NO.6, JUNE 2013 WEN-TSAI SUNG, YAO-CHI HSU Ching-Hong.
RLC CIRCUITS AND RESONANCE
Guided by - Prof. J B Patel Prepared by : Hemaxi Halpati : Priyank Hirani : Manish Jatiya : Rakesh.
Varactor Diode or Varicap Diode Working and Applications.
Principles of Electronic Communication Systems. Chapter 6 FM Circuits.
Alternating Current Circuits
Chapter 10 Magnetically Coupled Circuits and Resonance
Dr Andrew French P5/6 Winchester College
WEBENCH® Coil Designer
Rectifiers and Filters
Resistance Impedance Energy Storage Resistor R Ohms Reactance Z Ohms
RFPD Noise mitigation R. Abbott 3 September, 2010
VARACTOR DIODE CORPORATE INSTITUTE OF SCIENCE & TECHNOLOGY , BHOPAL
CHAPTER 3 Frequency Modulation
4. Linear wire antenna.
SHROFF S.R. ROTARY INSTITUTE OF CHEMICAL TECHNOLOGY
Two Vacuums Shopvac Bosch Dept. of Mech. Engineering 1
Dr. Zainal salam; Power Electronics and Drives (Version 2),2002, UTMJB
Investigation of Wireless Power Transfer in Through-wall Applications
ENE 428 Microwave Engineering
BASIC ELECTRICAL ENGINEERING
Chapter 5 – Oscillators – Part 2
Measurements of Inductance & Capacitance
INDUCTORS, CAPACITORS AND ALTERNATING CURRENT
Chapter-23 Alternating Current (AC) Circuits
C H A P T E R 14 Parallel A.C. Circuits.
OPA2227 All NPN Output Stage Analysis
AC current.
Presentation transcript:

Bakalaureusetöödest

Saatja-vastuvõtja tüüpi Foucault’ kardiograafi vastuvõtuploki ehitamine Title of the work: Design of the Derector block / Transmitter Block of the Transmitter-Receiver Type Foucault Cardiograph Juri Babkin

Sisukord 1.Valdkonna ülevaade –1.1 Uurimismeetodid inimese südame tegevuse jälgimiseks: millised on praegu kasutusel –1.2 Pöörisvoolude uurimise ja kasutamise ajalugu –1.3 Kirjanduse ülevaade –1.3.1 Kokkuvõtte –1.4 Saatja-vastuvõtja tüüpi Foucault’ kardiograafi ehitamine: erinevused ja eelised –1.5 Töö eesmark ja sellest tulenevad ülesanded 2.Meetodid ja materjalid 3.Tehtud töö kirjeldus 4.Tulemused 5.Arutelu Kokkuvõte Summary Kasutatud kirjandus Lisad

Meetodid ja materjalid 1.Tänapäevase bioelektrilise impedantsi mõõtja vajalikud omadused ja uued võimalused realiseerimiseks 2.Elektroonikaskeemide funktsionaalse simulatsiooni vahendid LT Spice näitel 3.Nõrkade analoogsignaalide töötlemise riistvarast 4. 5.Lühiülevaade mikrokontrolleri XXXXX võimalustest (koodi näited?) 6.Montaažiplaatide trasseerimise probleem ja vahendid selle lahendamiseks

Meetodid ja materjalid Tehtud töö Plaan: 1.Foucault’ kardiograafi ehitus (üldskeem kirjeldusega) 2.Vastuvõtuploki ehitus skeemiga, skeemiosade seletused, kuidas nad töötavad. 3.Valitud komponendid ja paigutus plaadil 4.Mikrokontrolleri lahendused (koodi näited?)

Auto-Tuned Induction Coil Conductivity Sensor for In-Vivo Human Tissue Measurements J. Heller and J. R. Feldkamp Kimberly-Clark Corporation, Corporate Research and Engineering 2100 Winchester Road, Neenah, WI 54956, U.S.A Auto-tuned induction coil technology, based upon phase-locked loop circuitry (PLL), was developed and shown to be an effective tool for in-vivo measurement of elect- rical conductivity of human tissues. Because electrical contact is not required, se- veral disadvantages of the electrode method for conductivity determination are avoi- ded, such as electrode polarization and variable conductivity associated with the stratum corneum of the epidermis. Fixed frequency excitation is supplied to a paral- lel tuned RLC circuit, or “sensor”, while bias applied to a varactor diode is automa- tically adjusted via PLL circuitry to maintain the RLC sensor at resonance. Since re- sonant impedance of a coil positioned near a conductive object is known to be fre- quency dependent, such an arrangement permits precise calibration of the sensor against a set of standard Potassium Chloride solutions. In our experiments, a two- layer spiral coil is used with upper and lower spiral arms staggered so as to reduce inter-winding coil capacitance. Preliminary in-vivo testing was done on the forearms of a single male subject as a prelude to more extensive use in a clinical setting. In that instance, electrical conductivity at the proximal volar forearm location was shown to depend on forearm elevation. Clinical studies using our prototype, as well as further consideration of the “elevation effect”, are discussed in a companion paper. Keywords: Induction coil, electrical conductivity, phase-locked-loop, human tissues, impedance, resonance