Non contact fiber optic based respiration rate measurement system

The respiration rate is the number of breaths a person takes per minute. It involves counting the number of breaths for one minute by counting how many times the chest rises. There is an increasing interest in the noninvasive monitoring of respiratory function, and particularly in the measurement of chest wall movements. In the present study the chest movement was sensed by fiber optic displacement sensor for the measurement of respiration rate. The respiration rate of the infants was measured. An enunciator gives correct indication of over and under respiration rate. When the pulses are less than 10 for 30 seconds there was continuous beep where as when the pulses were 20 or more than 20 there was intermittent beep.