基于MSP430F149单片机的便携式脉搏测试仪的设计

On Design of Portable Pulse Testing System Based on MSP430F149 Microcontroller

本设计采用MSP430F149单片机作为核心处理芯片,实现了将手指放在用光电传感和放大滤波技术制作的光电脉搏探头下,经A/D转化在TFT液晶显示屏上显示人体脉搏测量。经测试,该系统各项指标均达到了设计要求,且能有效地抑制干扰提高精度,具有低功率低成本的特点。

In this paper, MSP430F149 microeontroller is used as kernel processing chip in the design of portable pulse testing system. As a result, when a finger is placed below the optoelectronic pulse detector designed with opto- electronic sensor and amplifier-filter technology, the TFT LCD will display the result of pulse measure after A/D con- version. The test result shows that all the indicators can meet the requirement. The designed pulse testing system can effectively restrain interruption, and accordingly the accuracy of pulse testing is improved. Moreover, the system has low cost.