Development of Photoplethysmographic Linear Sensor for Pulse Rate Measurement in the Rest Sitting and Clothing State

Abstract

We developed a photoplethysmographic (PPG) linear sensor to obtain PPG signal in the condition of rest sitting with subject's clothes on. The linear sensor is composed of eight-LEDs and eight-phototransistors. The PPG signals were obtained via the clothes by a high brightness of LED pulse. Electrocardiogram and PPG were simultaneously obtained from 10 healthy young males. The relationship between heart rate and pulse rate in 2383 beats were analyzed and no significant differences were obtained in the mean intervals and the standard deviation of intervals.