基于STM32的脉冲式及扫频式超声波除垢信号源设计  

Integrated Design of Pulse and Sweep Frequency Ultrasonic Signal Source Based on STM32

作　　者：李连通[1] 张伟光[1] 李金博[1] Li Liantong;Zhang Weiguang;LI Jinbo(Harbin Nonnal University)

机构地区：[1]哈尔滨师范大学

出　　处：《哈尔滨师范大学自然科学学报》2019年第1期57-62,共6页Natural Science Journal of Harbin Normal University

摘　　要：介绍了一种基于STM32主控芯片产生两种不同信号源的实现]脉冲信号源可以产生四路互补的带死区的脉冲束,脉冲束的频率可以通过旋钮编码器旋转的圈数进行调节,其频率从5～30 kHz变化,作为磁致伸缩换能器或压电陶瓷换能器超声波除垢设备的信号源.扫频信号源可以产生连续循环变化的扫频方波信号,频率在1～30 kHz之间扫频,作为电磁扫频式除垢设备的信号源.In this paper, an implementation of two different signal sources based on STM32 master chip is introduced. The pulse signal source can produce a four complementary pulse beam with dead zone. The frequency of the pulse beam can be adjusted by the number of rings rotated by the knob encoder. The frequency varies from 5 kHz to 30 kHz, as the signal source of the ultrasonic scaling device for the magnetostrictive transducer or the piezoelectric ceramic transducer. The sweep frequency signal source can produce sweep frequency square wave signal with continuous cycle change, frequency sweep between 1 kHz and 30 kHz, as the signal source of the electromagnetic sweep type descaling equipment.

关 键 词：STM32 脉冲信号 死区 旋钮编码器 扫频信号 

分 类 号：TB55[理学—物理]