摘要
基于韦根特效应制成的零功耗磁敏传感器是一种新颖的器件,它在一定磁场的作用下无需外加电源,就可以输出幅度和宽度都恒定的电脉冲信号,并且脉冲的幅度在1V以上.这种特性为电子水表、电子热能表等的开发提供了不少有利的条件.在介绍这种传感器的原理、结构、性能和特点的基础上,介绍了基于此传感器的电子水表基表的研制过程.通过对水表基表产生的脉冲信号进行处理和编写相关的程序软件就可构成完整意义上的电子水表.对其进行实际测量和使用表明:该水表具有零功耗、零响应频率、结构简单、可靠性好等优点.
As a new type of apparatus, zero power dissipation magnetic-sensitive sensor which is developed based on Wiegand effect, can bring about electric pulses of invariable amplitude and width, and the amplitude of the pluses exceeds 1 Volt without needing extra electric power in the effect of certain magnetic field. This special feature provides many advantages for the development of electronic water-meter or thermal-meter. The principle, structure and characters of this zero powered magnetic-sensitive sensor are introduced in this paper. Based on this sensor, an electronic essential-water-meter is developed. Having dealt with the pulse signals generated of the meter and compiled the relevant program software, we can construct a water-meter in a complete sense. The results of practical measure and applications indicate that this water-meter has the characteristics of zero power dissipation, zero responding frequency, simple structure and high reliability.
出处
《南京师范大学学报（工程技术版）》
CAS
2005年第2期24-26,共3页
Journal of Nanjing Normal University(Engineering and Technology Edition)
基金
南京师范大学青年科学基金资助项目(2001LHZXQNBQ12).
关键词
韦根特效应
零功耗磁敏传感器
水表基表
Wiegand effect, zero powered magnetic-sensitive sensor,electronic essentic-water-meter
