一种感应测井仪的波形发生器的设计  

Design of Waveform generator of induction logging instrument

作　　者：张伟安[1] 刘娜[2] 

机构地区：[1]光电油气测井与检测教育部重点实验室(西安石油大学) [2]西安电子科技大学通信工程学院

出　　处：《电子测试》2010年第6期84-87,共4页Electronic Test

摘　　要：根据感应测井仪的输入信号是20KHz的正弦波形信号电压的需要,本文提出了一种基于TMS320F2812的波形发生器的设计方法,采用32位DSP芯片TMS320F2812和AD公司的数模转换芯片AD7837实现其硬件部分。本文详细描述了硬件和软件的具体实现方案。经过多次实验,大量结果充分表明该波形发生器能够正确产生所需要的20KHz正弦波信号,完全满足仪器的要求。该系统具有很高的精度、稳定性和通用性。Based on the needs of 20KHz input sine-signal used inducing logging,the paper designs one measure of waveform generator based on TMS320F2812 ,the hardware is made of TMS320F2812 which is a chip of 32 bit and D/ A chip which have function of Digital-analog conversion made in AD corperation. The paper discribe the program of hardware and software. After several experiments show that the waveform generator could generate sine-signal whose frequency is 20KHz. The wave fully meets the needs of instrumt. And the systems have a high accuracy,stablity ,universality.

关 键 词：DSP 模数转换 波形发生器 

分 类 号：P631.83[天文地球—地质矿产勘探]