深海环境模拟实验装置压力控制系统设计

摘要

In order to simulate the deep-sea high-pressure environment, a testing device which can simulate the deep-sea environment was designed. Based on the analysis of its control system, a closed-loop control strategy of pressure was proposed. Hardware circuit of the constant-frequency variable-speed control system was designed. Its main control circuit used Atema8L, a single-chip microcomputer, as the core. ECN30206 was used in the drive circuit as the core, and Max7219 was used in the display circuit as the core. The various parts of the hardware circuit can be individually used to meet different needs. This system not only can improve the accuracy of pressure adjustment significantly, hut also has energy-saving effect.%为了模拟深海高压环境，研制了一套深海环境模拟试验装置，在对深海环境模拟装置控制系统结构原理分析的基础上，提出了一种针对压力的闭环控制策略，采用以Atmega8L单片机为核心的主控电路、以ECN30206为核心的驱动电路、以Max7219为核心的显示电路，设计了稳压控制的定频调宽变速控制系统的硬件电路，并进行了相应的软件编制，实现了控制电路各模块的自由组合，以满足不同场合的需求，又可组成闭环控制系统，不但能够显著提高深海环境模拟装置的压力控制精度。同时还具有节能的效果。