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Heart Rate Monitor U sing Light Transmission

Heart Rate Monitor U sing Light Transmission . Team B Yokaira Cabrera Chavonna Spencer. Introduction. Our group designed a device, which monitors heart rate by using variation in absorption of light through the finger. B. C. Background.

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Heart Rate Monitor U sing Light Transmission

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  1. Heart Rate Monitor Using Light Transmission Team B Yokaira Cabrera Chavonna Spencer

  2. Introduction • Our group designed a device, which monitors heart rate by using variation in absorption of light through the finger. B. C.

  3. Background • The amount of blood in the finger limits the amount of light absorbed by the photodiode. • Electro Magnetic Spectrum

  4. Terminology A. • Charge • Current • Resistance • Voltage B.

  5. Terminology • LED • Photodiode • Breadboard A. C. B.

  6. Procedure: Task 1 • Testing Different LEDs for which had highest Voltage With Finger & without Finger • Use of Amp Meter to measure 75% of Absolute Maximum Current • Breadboard Circuitry

  7. Table Representing Nine Different Voltages

  8. Procedure: Task 2 • Equipment Set Up • Heart Rate Monitor • Photodiode Circuit • LED Circuit

  9. Procedure: Task 2 • Began to Test Heart Rate Monitor • Made sure we did not cut off our circulation • Filtered out ambient light • (pictures of frequency transitions)specifically 1,000Hz) 1-10Hz 10-100Hz 100-1000Hz 1000-10000Hz

  10. Results • Maximum Frequency • How Heart Rate Was Calculated • Best Working LED (IR)

  11. Results Dave_Green_LED Chavonna_Purple_LED Yokaira_Red_LED Chavonna_IR_LED

  12. Results Chavonna After Running Chavonna Before Running 170bpm 83bpm

  13. Results Chavonna: Super Red LED Chavonna: IR LED

  14. Conclusion • We were able to get the heart rate monitor to work • The IR work best for all skin tones • The Red LED did not work for darker skin tones

  15. Acknowledgements • Jackie Bortiatynski • Jody Markley (Director of UBMS) • Derek James (Assistant Director of UBMS) • Professor Alexay Kozhevnikov • SEECoS • David McLaughlin • Pam Monk

  16. Any Questions?

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