基于STM32的脉冲式及扫频式超声波除垢信号源设计
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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.
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.
引文
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[2] 周正干,王春生,等.超声振动切削中的自动调谐技术研究[J].北京航空航天大学学报,2007, 27(2): 198-201.
[3] Keichi Koastu .Constant vibration Amplitude Method of Piezoeletric Transducer Using a PLL[C].Japanese Journal of Applied Physics, 1985,24(1):159-162.
[4] 黄俊,王兆安.电力电子变流技术[M]. 1999.
[5] Carmel C, Austin P, Sanchez J L, et al. Integrated IGBT short-circuit protection structure[J].Design and optimization Microelectronics, 2006, 37(3):249-256.
[6] Khatir Z, Lefebvre S .Boundary element analysis of thermal fatigue effects on high power IGBT modules[J].Microelectronics Reliability, 2007,44(6):929-938.
[7] 程立新,杨杰辉.换热设备防结垢技术进展[J].石油化工设备,2000,29(4):22-25.
[8] 周爱东,杨红晓,张志炳.超声波在防除结垢中的应用[J].应用化工,2005,34(11): 659-661.
[9] 林仲茂.超声波清洗机质量和清洗效果若干问题的探讨[J].洗净技术,2003(10):6-10.
[10] 孙良欣.中国清洗工业现状与展望[J].洗净技术,2003(3):15-18.
[11] NISHIDA I. Precipitation of calcium carbonate by ultrasonic irradiation[J]. Ultrasonic Sonochemistry, 2004,11(6): 423-428.