Abstract

Diagnosis is an important tool presented by ayurveda which is to find the root cause of the disease. It has been observed that it is much easier to determine the pulse of a person with three fingers than by one. Nadipariksha [1] is the oldest ayurvedic technique of diagnosis through the pulse. It is a non-invasive method to determine the disease. Nadi gets influenced by various affects that determine the physiology of the body especially the three doshas Vata, Pitta and Kapha.Vata is measured by index finger, Pitta is measured by middle finger and Kapha is measured by ring finger. These pulses are measured on the radial artery of the patient. Presently this technique is objective in nature. Hence, wrist pulse detection system is therefore developed to provide support to ancient system. Pressure sensor is used for pulse detection. The pulse signals obtained are then amplified by amplifier circuit. The amplified signal is then fed to ARM M7 microcontroller to remove negative values and digitize the analog signal which is interfaced with LCD and analysis of waveform is performed on personal computer. Pulse shapes, rates, amplitude are stored and found to be different for different people having different doshas. The three pulses represent different shapes and different frequencies.