Howtosignalprocessing
Photoplethysmography (PPG) is an uncomplicated and inexpensive optical measurement method that is often used for heart rate monitoring purposes. PPG is a non-invasive technology that uses a light source and a photodetector at the surface of skin to measure the volumetric variations of blood circulation.
- How do you calculate heart rate from PPG?
- Can PPG be used for HRV analysis?
- How does a Photoplethysmography pulse oximeter device work?
- What does PPG stand for heart rate?
How do you calculate heart rate from PPG?
BPM=(Sampling Rate/(peak(i+1)-peak(i)))*60; Do the FFT transform for a set of data. Then find the peak from 0.5-2.5Hz. Finally multiply that peak's frequency with 60s.
Can PPG be used for HRV analysis?
PPG (short for photoplethysmography) is a very simple optical technique for measuring HRV. Unlike ECG, which uses electrodes, PPG applies light reflection to detect the blood volume changes in peripheral arteries which occur with each heartbeat.
How does a Photoplethysmography pulse oximeter device work?
It consists of a light source and a photodetector for measuring transmitted and reflected light signals. Clinically, PPGs are used to monitor the pulse rate, oxygen saturation, blood pressure, and blood vessel stiffness.
What does PPG stand for heart rate?
PPG stands for photoplethysmography, which is a long word for an optical measurement of an organ's volume. In principle, PPG is measured by illuminating the skin and subcutaneous tissue with light of a specific wavelength. This light will come from an LED, or a light emitting diode.
