eddy seismometer

Through analyzing the working principle of eddy geophone, this paper establishes seven parameter model of frequency response function considering the influence of geophone shell.

通过分析涡流检波器的工作原理,建立起考虑检波器外壳影响下频响函数的7参数模型,将其与现有模型阻尼机理及影响因素比较。

The HD- JSⅡeddy geophone is a pattern of seismic geophone based on the operational principle of bow wave and acceler- ation, which is suit for the exploration of all regions.

HD—JSⅡ涡流检波器是一种涡流式加速度地震检波器,适用于所有地区的陆地地震勘探。

Novel geophone based on long period fiber grating;

基于长周期光纤光栅的新型地震检波器

The Design of Portable Geophone Parameter Tester Based on ARM;

基于ARM技术的手持式地震检波器特性参数测试仪设计

Mode-Pair sliding ── the problem to be solved in geophone;

模态对滑动─—地震检波器面临的问题

The set-up of a conventional seismometer is a couple of permanent magnet and coil, which has a few troubles such as electromagnetic interference, permanent magnet′s non-linearity, and small dynamic range.

传统地震检波器为“永磁动圈”式电磁检波器,在信号捡取过程中易受电磁干扰,存在非线性、动态范围小等问题。

Theoretical research of unsymmetrical grating seismic geophone based on the Moiré fringe multiplication technology;

基于莫尔条纹倍增技术的非对称光栅地震检波器的理论研究

The method for vortex-geophone' s parameters test in time domain based on Walsh transform is proposed in this paper.

给出了基于沃尔什变换的涡流检波器参数测试的时域方法。

Digital psk applied in nondestructive inspection

数字移相相敏检波在涡流无损探伤的应用

Research of Signal Denoising in Pulsed Rddy Current Testing Based on Lifting Wavelet

基于提升小波的脉冲涡流检测信号去噪的研究

Applications of Wavelet Analysis in Plate Surface Crack Detection with Eddy Current Testing Technology

小波分析在钢板裂纹电涡流检测中的应用

Effective Diameter of the Measuring Coil in Eddy Current Sensors and Its Applications

涡流传感器中检测线圈的有效直径及其应用

A STUDY OF EXCITATION SOURCE FOR EDDY CURRENT TYPE MOLTEN SLAG DETECTION SENSOR IN CONTINUOUS CASTING

连铸电涡流型熔渣检测传感器激励源的研究

Study on Eddy Current Testing Virtual Instrument System under LabWindows/CVI;

基于LabWindows/CVI的涡流检测虚拟仪器系统的研究

Research on the Measurement Systems of Nondestructive Vacuum Degree Based on Dual Eddy Current Sensors;

双探头电涡流传感器真空度无损检测系统研究

The Simulation Research of Pulsed Eddy Current Detection Sensor on Industrial Pipeline Corrosion

工业管道腐蚀脉冲涡流检测传感器仿真研究

Research on key technology of eddy current testing system based on GMR transducer

基于GMR传感器的电涡流检测系统关键技术研究

Eddy Current Testing of Through-Hole of a Heat Exchanger Tube

换热器传热管通孔缺陷的涡流检测信号

Eddy Current Testing Technology of the Tube of Petrochemical Reactor System

石化系统聚乙烯醇反应器的列管涡流检测技术

A New Method without Filter for Detecting Harmonic Currents

一种无滤波器的谐波电流检测新方法

Wavelet Analysis Application on Eddy Current Testing Signal Processing of Carburized Layer Depth;

小波分析在渗碳层深度涡流检测信号处理中的应用

EDDY CURRENT SENSOR LINE--A NEW SENSOR FOR DETECTION OF CONTOURS AND PROPERTIES OF METALLIC MATERIALS

一种用于检测金属物体轮廓和材料性能的新型传感器——涡流阵列

A NEW TYPE NDT INSTRUMENT-STUDY AND APPLICATION OF ELECTRO-MAGNETIC EDDY CURRENT INSTRUMENT

一种新型无损检验仪器——电磁式涡流仪的研究和应用

Using Parallel Moving Method to Adjust the Signal of Eddy Current Sensor Measuring Internal-Combustion Engines Casting;

检测内燃机铸件的电涡流传感器输出信号的平移调整

Application of Remote Field Eddy Thickness-testing in Carbon Steel Tubes of Air Coolers

远场涡流测厚技术在空冷器碳钢管束检测中的应用