摘要
该文介绍一种新型的高频超声波按摩仪的设计,针对传统按摩仪的超声信号频率低,按摩效果不明显以及工作稳定性较差等缺点,提出了采用结合DDS产生超声信号的方式,实现超声频率可以达到3MHz稳定超声波按摩系统。该按摩仪采用STM32作为主控制芯片,结合开关电源模块,DDS模块,功率放大模块以及频率跟踪模块等。经实验验证,该按摩仪装置体积小,功率低,工作效率高,安全稳定,具有很好的实用价值。
This paper presents a new design of high frequency ultrasonic massage instrument.Due to the lower frequency of ultrason-ic signal,poor massage effect and poor stability of traditional massage device. A stable ultrasonic massage system,combining DDSgenerated ultrasonic signal,ultrasonic frequency can reach 3 MHz,is proposed in this paper. The massage instrument uses STM32 asthe main control chip, combining the switch power module, DDS module, power amplifier module, frequency tracking module andso on. It is proved by experiments that the massage device is small in volume, low in power, high in efficiency, safe and stable, andhas good practical value.
出处
《电脑知识与技术》
2018年第2Z期257-259,共3页
Computer Knowledge and Technology
关键词
超声波按摩
DDS
频率跟踪
ultrasonic massage
DDS
frequency tracking
