FilePath.png' alt='National Instrument Circuit Design Suite' title='National Instrument Circuit Design Suite' />National Instruments Test, Measurement, and Embedded Systems. Solve challenges in any application that requires test, measurement, and control with the latest versions of our flagship systems engineering software, Lab. Goal This lab uses the NI ELVIS II suite of instruments to measure the characteristics of lowpass, highpass, and bandpass filters. Simulate these filters using. Welcome to the VA Office of Small And Disadvantaged Business Utilization OSDBU. ECG Circuit Analysis and Design Engineers Labs. Abdallah Ishbeata. Mohammad Kalbouneh. ACKNOWLEDGMENTSWe cannot find the words that can covey the depth of our feeling towards many people who helped us. All what we can say thanks very much and we will always remember and be grateful for them. This work would have never come to be without the guidance of our supervisors and the support of our families. WGnmhBhvutLs_3JkIM5qKkrdKDs-qjupr12bqK94_UxGI8DKXE47Adg2kVdeXf80WHfu0b5AkHG7p-7EsWGaSHqmLTEfYx_kb2OA=s0-d' alt='National Instrument Circuit Design Suite' title='National Instrument Circuit Design Suite' />Our Advanced Mineralogy Facilities AMFs are equipped with a wide variety of tools including QEMSCAN systems. Our team of applied and process mineralogists are. TerasLMA es una Plataforma de Formacin aeronutica que lleva ms de tres aos funcionando en Espaa, y tenemos destacada expericia en la preparacin de. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get. National Instrument Circuit Design Suite' title='National Instrument Circuit Design Suite' />Airbags are inflatable cushions built into a vehicle that protect occupants from hitting the vehicle interior or objects outside the vehicle for example, other. We would like to express our deep thanks to DR. AMJED AL FAHOUM for Supervisions. Last, we would like to express our appreciation and deep gratitude to our parents and friends for their support and encouragement. Chapter one. Physiological Fundamentals. PersonalInfo.png' alt='National Instrument Circuit Design Suite' title='National Instrument Circuit Design Suite' />Heart beat. Is the number of heartbeats per unit of time typically expressed as beats per minute bpm which can vary as the bodys need to absorb oxygen and excrete carbon dioxide changes, such as during exercise or sleep, The measurement of heart beat is used by medical professionals to assist in the diagnosis and tracking of medical conditions. It is also used by individuals, such as athletes, who are interested in monitoring their heart beat to gain maximum efficiency from their training. Heart and Functions The heart is the organ responsible for pumping blood throughout the body. It is located in the middle of the thorax, slightly offset to the left and surrounded by the lungs. The heart is composed of four chambers two atriums and two ventricles. The right atrium receives blood returning to the heart from the whole body. That blood passes through the right ventricle and is pumped to the lungs where it is oxygenated and goes back to the heart through the left atrium, then the blood passes through the left ventricle and is pumped again to be distributed to the entire body through the arteries. This is a list of events that occur in the heart on each heart beat. Figure. 1  shows heart behavior and part of the generated signal. Also known as QRS complex 1. Atrium begins to depolarize. Atrium depolarizes. Ventricles begin to depolarize at apex. Atrium re polarizes. Ventricles depolarize. Ventricles begin to re polarize at apex. Ventricles re polarize. Figure 1 Electrical Activity of the Heart. Figure 2  shows a typical heart signal. In this signal, the heart muscles generate different voltages. The P wave represents the atrium contraction. QRS complex and the T wave represents the ventricles actions. Each time that this signal is present, a heart beat is generated. Figure 2. Typical heart signal. Chapter two ECG circuit design 2. Introduction The first stage of the ECG circuit include instrumentation amplifier it is the most important part in the circuit it should provide high gain to amplify the weak of ECG signal and be able immunity the noise common mode signal and other signal in electromagnetic spectrum. Noise Noise from the environment will easily swamp the tiny pulse signal from the heart. The leads connecting the electrode to the amplifier will act like an antenna which will inadvertently receive unwanted radiated signals. Such signals are for example the 5. Hz from power lines and emfs from fluorescent lights will add a tiny sinusoidal wave which is generally quite difficult to filter away, but in our project we will not concern this type of noise 5. Civil War S there. Hz since our range of signal is from 0. Hz. Noise and interference signals acquired in this type of system are caused by the electric installation. The signals from the heart are too small and it is necessary to amplify the signal and reduce the common mode voltage on the system. Other aspects that generate noise are muscle contractions, respiration, and electromagnetic emissions from electronic components. Enhancements To address the issues above, the following measure will be taken A high gain instrumentation amplifier with a high Common Mode Rejection Ratio CMRR will be used to receive the desired signal. A band pass filter will be implemented to remove the noise. Because most of the noise types discussed are of high frequency while the desired signal is relatively low. Peak detection circuit to detect the failure in electrodes connection. Oscillator to generate signal with frequency approximately 5okhz that pass through the instrumentation amplifier when the loss connection occurred. Analog to digital circuit to processing the signal using computer techniques. Figure 3 block diagram of the circuit. INA 1. 28 The signal acquisition is the first consideration when an HRM is implemented. But the signal is too small and contains a lot of added noise. As we said above the signal extracted from the heart has amplitude of approximately 0. V. Since, it is necessary to amplify the signal and filter the noise, and then extract the QRS complex. An instrumentation amplifier is usually the very first stage in an instrumentation system. Artisteer 2.5 Crack. This is because of the very small voltages usually received from the probes need to be amplified significantly to be proceeding stages. We can summarize the reasons to use instrumentation amplifier 1 Get differential signal. High input impedance. High CMRR. Let us take some review about instrumentation amplifier Figure 4 general instrumentation op amp. This intimidating circuit is constructed from a buffered differential amplifier stage with three new resistors linking the two buffer circuits together. Consider all resistors to be of equal value except for Rgain. The negative feedback of the upper left op amp causes the voltage at point 1 top of Rgain to be equal to V1. Likewise, the voltage at point 2 bottom of Rgain is held to a value equal to V2. This establishes a voltage drop across Rgain equal to the voltage difference between V1 and V2. That voltage drop causes a current through Rgain, and since the feedback loops of the two input op amps draw no current, that same amount of current through Rgain must be going through the two R resistors above and below it. This produces a voltage drop between points 3 and 4 equal to The regular differential amplifier on the right hand side of the circuit then takes this voltage drop between points 3 and 4, and amplifies it by a gain of 1 assuming again that all R resistors are of equal value. Though this looks like a cumbersome way to build a differential amplifier, it has the distinct advantages of possessing extremely high input impedances on the V1 and V2 inputs because they connect straight into the non inverting inputs of their respective op amps, and adjustable gain that can be set by a single resistor. Manipulating the above formula a bit, we have a general expression for overall voltage gain in the instrumentation amplifier 2. GAIN SELECTION The INA1. INA1. 29 are low power, general purpose instrumentation amplifiers offering excellent accuracy. Their versatile 3 op amp design and small size make them ideal for a wide range of applications. Current feedback input circuitry provides wide bandwidth. Even at high gain 2. Hz at G 1. 00. A single external resistor sets any gain from 1 to. INA1. 28 provides an industry standard gain. Equation INA1. 29s gain equation is compatible with the AD6. The INA1. 28INA1. V, drift 0. 5m. VC and high common mode rejection 1. B at G 1. 00. It operates with power supplies as low as 2. V, and quiescent. Current is only 7. Aideal for battery operated systems. Internal input protection can withstand up to4. V without damage. The INA1. 28INA1. DIP, and SO 8 surface mount packages, specified for the 4. C to 8. 5C temperature range.