Based on the principle of pulse-taking in Traditional Chinese Medicine

a pulse detection device based on novel balloon sensing probe is researched and fabricated. The balloon sensing probe acts on the wrist radial artery region

by means of best match of internal pressure of the balloon sensor with the internal pressure of the blood vessel

thus

the actual longitudinal out-of-plane displacement of the pulse can be obtained effectively. The signal of laser displacement sensor is used as a reference for static and dynamic analysis. The experimental results show that in the static analysis

the maximum detection error of the pulse detection device is 4. 83 %. Dynamicly analyze on the detection results of the device and the sensor are all distributed within the consistency limit of± 1. 96 SD

and the standard uncertainty is taken as the evaluation index. The experimental data show that the device has good repeatability

stability and reliability.