摘要
利用DDS(直接数字合成)芯片AD9858作为信号发生电路的核心器件,开发出了压电陶瓷性能参数综合测试系统。利用计算机的并口,并配以外围接口电路,实现了微机对测试电路的控制和对所需数据的采集与处理,能同时测量压电陶瓷谐振频率与反谐振频率、动态电阻、动态电容、机械品质因数等参数,最大测试误差在3%以内。
By using AD9858 as the primary part of the signal source, a new model of measuring system for piezoelectricity ceramics character parameter was built up. Taking use of the parallel port of the computer and through the peripheral interface circuit, circuit controlling and data acquisition can be achieved. The system can measure the harmonic frequency and antiresonance frequency, flee capacity, and dynamic resistor at the same time.
出处
《仪表技术与传感器》
CSCD
北大核心
2007年第6期67-68,71,共3页
Instrument Technique and Sensor
关键词
压电
DDS
测试系统
数据采集
piezoelectricity
DDS
measuring system
data acquisition
