基于STM32的大功率超声间歇式控制信号  

STM32 based intermittent control signals for high-power ultrasound

作　　者：周翔[1] 沈建国[2] 陈丽华[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072 [2]天津大学药物科学与技术学院,天津300072

出　　处：《声学技术》2013年第5期395-399,共5页Technical Acoustics

基　　金：863计划资助项目(2007AA06Z226)

摘　　要：在石油开发过程中,大功率超声能够有效地对堵塞的渗透层进行解堵,提高地层的渗透性,增加注水井的注水能力或采油井的产液量,提高原油产量。系统以STM32单片机为核心,产生大功率超声需要的两路间歇式控制信号。这两路信号的相位差为180°,"死区时间"均为3μs,控制大功率超声电源中的IGBT驱动电路。将该控制电路接入大功率超声系统后,大功率超声系统能正常工作,设备运行稳定,能基本满足工业应用的要求。In oil extraction process, high-power ultrasound can effectively unblock permeable bed, improve stratum’s permeability, increase the injection rate of water-injection well or the liquid yield of oil well, and therefore raise the production of petroleum. In this oil extraction system, the STM32 single-chip is taken as the core device to generate two intermittent control signals for the operation of a high-power ultrasonic source. These two signals, of which the phase difference is 180°and the dead time is 3μ , control the IGBT driving circuit in high-power ultrasonic source. It is shown that by connecting the control circuit to this high-power ultrasonic source, the whole system works well, and so the system can basically satisfy the demand of industrial application.

关 键 词：STM32单片机 压电换能器 石油开发 间歇式 大功率超声 

分 类 号：TB556[理学—物理]