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| TI血压监视器解决方案 | |||||
作者：TI 文章来源：本站 点击数： 更新时间：2007-3-19  |
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 Design Considerations The blood pressure monitor can use Korotkoff, Oscillometry, or Pulse Transit Time methods to measure blood pressure. It employs a pressure cuff, pump, and transducer to measure blood pressure and heart rate in three phases: Inflation, Measurement, and Deflation. It includes an LCD, selection buttons, memory recall, power management, and USB interface. The core subsystems include: •Processor/Memory - The digital pressure measurement and heart rate are performed by the microprocessor. Measurements results are stored in EEPROM or FLASH memory as a data log that can be uploaded to a PC via USB. •User Interface - allows user to control the pressure measurement process and read the results on LCD display. •Sensor Interface - allows the processor to control the cuff inflation/deflation and sense blood pressure which is amplified by instrumentation amplifiers and digitized by the A/D. •Power Conversion - converts input power from the alkaline battery to run various functional blocks. |
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