1) mud pulse signal
泥浆脉冲信号
1.
In this paper,the characteristics of mud pulse signals and noise sources in wireless measurement while drilling system in petroleum oil logging engineering are analyzed in detail firstly.
本文首先对石油工程无线随钻测量系统中的泥浆脉冲信号以及存在的噪声干扰源进行了详细地分析,接着讨论了运用小波神经网络阈值去噪处理技术从频率不固定的多频强噪声背景下检测出有效信号的方法。
2) mud pressure pulse simulator
泥浆压力脉冲信号仿真器
1.
Based on ATmega128 mud pressure pulse simulator
基于ATmega128的泥浆压力脉冲信号仿真器
3) mud pulse
泥浆脉冲
1.
The paper introduces three basic working styles of signal transmission of mud pulse MWD sys tern,pressure positive pulse, pressure negative pulse and continuous pressure wave.
介绍了泥浆脉冲随钻测量系统信号传输的3种基本工作方式:压力正脉冲、压力负脉冲和连续压力波。
2.
The generation and transmission principle of mud pulse in MWD system is analyzed.
通过分析ＭＷＤ系统中泥浆脉冲的发生和传输原理，考虑到信号下传的特点和井眼轨道闭环控制系统的要求，确定出地面信号下传系统宜采用负泥浆脉冲方式。
3.
The method of mud pulse transmission is mostly used in the wireless signal transmission system between downhole and surface.
目前,地面与井下信息的无线传输系统主要是采用泥浆脉冲方式。
4) mud signal
泥浆信号
1.
Confined to the measuring and transmitting conditions in the field,the mud signal model is usually set which contains all kinds of noises.
针对钻井泥浆脉冲信号在复杂环境中传输的问题,建立了复合泥浆信号模型,研究了符合信号特征、基于最低熵的最优小波设计及处理方法。
5) mud pulse valve
泥浆脉冲阀
6) pulse signal
脉冲信号
1.
Experiment of correlation detection of weak laser pulse signals;
微弱激光脉冲信号的相关检测实验
2.
Portable pulse signal apparatus based on single-chip microprocessor
基于单片机的便携式脉冲信号参数测试仪
3.
Research of waveform design based on UWB pulse signal
超宽带脉冲信号的波形设计研究
补充资料：咸水泥浆、海水钻井液、海水泥浆
分子式：
CAS号：
性质：又称咸水泥浆、海水钻井液、海水泥浆。氯离子含量在6000mg/L以下的水基钻井液。
CAS号：
性质：又称咸水泥浆、海水钻井液、海水泥浆。氯离子含量在6000mg/L以下的水基钻井液。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条