Digital Electrical Circuitry

sonic digital cartridge

数字声波井下电子线路

sonic logging cartridge

声波测井下井仪电子线路部分

Application of Power Line Carrier in Mine shaft Data transmission

电力线载波在井下数据传输中的应用

borehole televisor

声波井下电视测量仪

Design of Data Acquisition and Processing Circuit of Cross-Dipole Acoustic Logging

交叉偶极声波测井的数据采集与处理电路设计

Study on Technology of Data Transmission in Downhole Based on Power Line Communication

基于电力线载波的井下数据传输技术研究

Design of multipole array acoustic logging receiver electronic circuit based on serial bus

基于串行总线的多极子阵列声波接收电路设计

Design of Multi-channel & High-precision Multi-pole Array Acoustic Log Data Acquisition System

井下多通道高精度多极子阵列声波数据采集系统设计

The Simulating Testing Facture of Electron Circuitry Enhanced Function --the emulation of logic analyse of digital circuitry;

增强功能电子线路模拟制作测试——数字电路逻辑仿真

Applying Digital Wave Replay System for Research on "5.5" Xingren-Baoan HVDC Fault

应用数字式波形回放系统分析“5·5”兴安直流输电线路闭锁故障

Theoretical and Numerical Study of Borehole Acoustic and Electric Field Excited by External Acoustic Sources under Seismoelectric Effects

震电效应下井外声源激发井孔声电场的理论研究与数值模拟

The Study of Digital Ultrasonic Power Supply Based on DSP;

基于DSP的全数字化超声波电源的研究

Sonic-Density-Neutron logging suite

声波-密度-中子测井系列

A digital switching device in telecommunications for routing lines.

电讯中用于线路路由的数字交换装置。

Application of FIR Linear Digital Filter in Digital TV;

FIR线性数字滤波器在数字电视中的应用

digital microwave radio transmitter-receiver equipment

数字微波无线电收-发设备

Research and Practice on Power Line Carrier Digital Communication

电力线载波数字通信技术研究与实践

Research on the radio wave propagation at 2.0 GHz in coal mine tunnels

2GHz无线电波在煤矿井下隧道传播的研究