林啟萬臺灣大學:電機工程學研究所羅奇Alfanz, RockyRockyAlfanz2010-07-012018-07-062010-07-012018-07-062009U0001-2707200916024000http://ntur.lib.ntu.edu.tw//handle/246246/188070A data acquisition is realized using purely non-invasive measuring mode. A blood pulse wave velocity (PWV) in human arterial tree is determined by analyzing how quickly a blood pressure pulse travels from one point to another in the human body, which measure distance and times pulse records ( PWV=∆/∆t; ∆=distance, ∆t=times ) . Two signals are needed at minimum for an estimation of the pulse wave velocity. All of these signals have to be measured simultaneously from different points on a human body using sensor CNY70. This work tries to design pulse wave velocity measurement system. System design used C++ programming and LabView programming as Data Acquisition System (DAQ) to interpreted data sensor. Recorded signals are transfemed to the computer in a real time mode, where they are saved for a next data processing (filtering, standardisation, and analysis) to get pulse wave velocity (PWV) value.ContentsrefaceBSTRACT iCKNOWLEDGEMENT iiABLE OF CONTENTS iiiIST OF FIGURES vIST OF TABLES vihapter I. Introduction 1.1 Pulse Wave Velocity (PWV) 1.2 Type of PWV 2.3 PWV Measurement 3.4 About this research 3.5 Objectives 4 hapter II. Literature Survey 5.1 Overview 5.2 Clinical Case Pulse Wave Velocity 8.3 Preparation of Design Instrument 11.4 Device for initial design measuring Pulse Wave Velocity 12.4.1 Sensors 12.4.2 Amplifier and Filter 12.4.3 Data Acquisition System (DAQ) 16.4.4 Microprocessor 16.5 Determine Pulse Wave Velocity (PWV) 18 hapter III. Initial Design PWV Measurement System 20.1 Initial Design Instrument for Measure Pulse Wave Velocity 20.2 Scheme Device. 20.2.a. Sensor1 22.2.b. Sensor 2 24.2.c. Analog to Digital Converter. 25.2.d. CPU Data Acquisition System 26.3. Waveform Displayed. 28hapter IV. Prototype Initial Design PWV Measurement System 29.1 Design Prototype Measurement System Devices. 31.1.1 Sensor CNY70 31.1.2. Amplifier and filtering 33.1.2a Circuit Amplifier 33.1.2b Circuit Filtering 35.1.3. DAQ. 38.1.3a. Microcontroller 38.1.3b. USB 39.2 Displayed Prototype 41.3 Measurement 43.4 Validation data value result from prototype design instrument 45 hapter V. Conclusion 48 eferences 49 ist of Figuresigure Title Page.2 Different types of cardiovascular pulse shapes (Bates 1995). 2.1a Different between normal artery and artery with plague 5.1b Pulse transmit time between carotid and femoral 8.2.1 Aortic PWV In Stroke Patients And Control Subjects (Lehman) 10.2.2 Carotid-Radial PWV in Diabetic Subjects (Woolam et al) 10.3.1 Scheme place application of device PWV 11.3.2 Example of signal pulses recognition 11.4.1 Single Supply (R) Circuits 13.4.2 AC-Coupled Gain Stages 14.5.1 The principle of PWV computation 18.5.2 Time difference of pulse wave pace point of finger and arm vessel 18.1 Research Design of Block diagram 20.2 Scheme of construct device design for measurement PWV 21.2.1 a) Sensor CNY70, b) Sensor CNY70 Top View 22.2.2 Sensor CNY70 Circuit 23.2.3 Trial to catches pulse from the finger: a)position of the sensor on the human body; b)sensor at the finger; c)sensor applied boards; d)sensor at the vessel 24.2.4 National Instruments Educational Laboratory Virtual Instrumentation Suite (NI ELVIS) 24.2.5 Design LabVIEW programming on the circuit 27.3 Pulse profile from National Instruments Educational LabVIEW Suite (NI ELVIS) ; a)pulse from finger point; b)pulse from vessel point 28.1 Block diagram of the equipment already design 30.1.1a i) Sensor CNY70; ii)Feature sensor CNY70 31.1.1b Sensor CNY70 Circuit 31.1.2a Figure Component Of Amplifier 33.1.2b PIN configuration for a) TLV2471, b)TLV2472 33.1.2c High-Pass Filter Circuits and Non Inverting Circuit 34.1.2d Low Pass Filter range of work 35.1.2e Low Pass Filter circuits 36.1.3a Microcontroller; By using MSP430F2410 38.1.3b.i Component ez430-f2013 from Texas Instrument 39.1.3b.ii Design Circuit USB to RS323 40.1.3b.iii Design USB connector to PC interface 41.2.1 Design Circuit all opamp for prototype Pulse Wave Velocity Design Instrument 41.2.2 PCB Layout from Prototype Machine by Protel 42.2.3 Design circuit on the PCB 43.3.1 Diagram of indicating pulse recording sites 44.3.2 Displayed Trial PWV signal result from analog circuit 44.3.3 Displayed Trial PWV signal result from Design PWV Measurements System Prototype 45.4 Value mean difference data of the PWV measurement system 463331005 bytesapplication/pdfen-US脈衝向量心臟感測器Pulse Wave VelocityCardiovascularSensorLabVIEW ProgrammingData Acquisition Systemthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/188070/1/ntu-98-J96921044-1.pdf