检波器

数字视频检波器设计

Design of digital video demodulator

并且通过在整形电路中增加限幅放大器，可以进一步提高计数检波器的性能。

In addition , the count demodulator 's performance can be further improved by adding a slicing amplifier in the wave-shaping circuit .

地震计一般称为地震检波器。

The seismometers are usually termed geophones .

在野外实践中，使用流体耦合的水听器（也叫海底丰&译者注）检波器来记录P波和S波。

Using hydrophone coupled with fluid to receive P-wave and S-wave in field operation .

基于ARM技术的手持式地震检波器特性参数测试仪设计

The Design of Portable Geophone Parameter Tester Based on ARM

以MEMS加速度传感器为基础的新型地震检波器大幅度提高了地震检波器的各项性能指标。

MEMS-based acceleration sensors greatly improve the performances of seismic geophones .

新型光纤Bragg光栅地震检波器的研究

Research on the New Type of the Fiber Bragg Grating Geophone

一种可变增益AC放大器被连到检波器电路，用于将检波器输出放大。

A variable gain AC amplifier is coupled to the detector circuit for amplifying the detector output .

本文发展了一种在τ&P域内，利用检波器响应特性分离P波和S波波场的新方法。

A filtering method working in domain has been developed in this article , which separate P - and S-wave field by taking into account the geophone response .

光纤Bragg光栅地震检波器传感头

Sensing probes of fiber Bragg grating geophones

彩电PLL视频检波器的捕获与跟踪特性

Capturing and tracking characteristics of PLL video detector in color TV receiver

Ka波段宽带、大动态平方律检波器的研制

Development of a Wide-Band , Wide-Dynamic-Range Square-Law Diode Detector of Ka Band

基于Pspice的小信号包络检波器的虚拟设计

Virtual Design on Weak Signal Envelope Detector Based on Pspice

AVO反演预处理中的检波器非径向接收能量补偿

Compensation for non-vertical received energy of geophone in preprocessing of AVO inversion

该改进的功率输出控制电路包括检波器电路，用于将输入信号整流产生代表输入信号功率电平的DC输出。

The improved power output control circuit includes a detector circuit for rectifying an input signal to produce a DC output representing power level of the input signal .

一种测量地震检波器假频的新型水平振动台DDS谐波和杂散分析

A new type horizontal vibration table for measuring the geophone spurious frequency the analyse of spurious level of DDS

Ka波段微带检波器设计

Design of Ka-Band Microstrip Detector

因其独特的制造技术，MEMS检波器具有超低噪声，大动态范围和极高的向量保真度性能。

Since its unique manufacturing technology , the MEMS geophone has ultra-low noise , larger dynamic range and very high vectorial fidelity performances .

简要介绍地音探测器的基本原理，SN－4数字检波器的频率特性。

In this paper , the basic principle of geophone detector and the frequency characteristics of SN-4 digital detector are briefly introduced .

垂直检波器的响应与在自由界面处的垂直检波器的响应大概相同，而水平检波器对P波的响应相对于对S波的响应来说要强。

The response of the vertical geophone at an interface is quite similar to that on a free interface . The horizontal geophone has a stronger response to impinging P-wave and a smoother response to incident S-wave .

在通常的三分量VSP数据中，各种类型的地震波所对应的位移矢量在检波器的各个分量上均有投影。

The displacement vectors corresponding to various seismic waves in usual 3-component VSP data produce projections on all geophone components .

给出了该加速度检波器工作原理，对结构进行了分析设计，并用有限元（FEM）分析软件进行了仿真计算。

The working principle and the optimization structure design of the acceleration seismic geophone are given . The simulation result performed in FEM software ANSYS agrees with the theoretical analysis well .

在国内首次采用远井源距纵波源VSP资料进行检波器定位，效果明显。

Far offset P wave source VSP data was first used in geophone positioning in China , resulting in obvious effect .

带相敏检波器的线性可变差动变压器（LVDT）读出电路的设计

The design of a linear variable differential transformer readout circuit with phase-sensitive detector

混合型集成光学加速度传感器DSP数字处理电路的设计是国家自然科学基金资助项目混合型集成光学加速度地震检波器理论与实验研究的子课题。

The Design of Hybrid-Integrated Optical Accelerometer Digital Processing Circuit Based on DSP is the sub-project of the Theoretical and Experimental Research on Hybrid-Integrated Optical Accelerometer that is supported by Natural Science Foundation of China .

而VSP技术的检波器放置在井中，处于地层内部，不但能接收上行波而且还能接收下行波。

And VSP technology detectors in the well placed in formation internal , not only can receive uplink wave and still can receive downside wave .

首先采用能量最大法对水平分量检波器重新定位，获得P-SV波和SH波剖面；

Firstly , the horizontal component geophone was relocated by using the maximum energy method to obtain the P-SV and P-SH wave sections .

4110（相敏检波器）与4114（相控器）是美国Evans公司生产的两种集成线路板。

Model 4110 ( phase sensitive detector ) and 4114 ( phase control unit ) are integrated circuit modules ( Evans Associates , Berkeley , CA , U.S.A. )

本文通过对地震检波器的运动特性的分析指出，电路组合方式不同，即外路阻抗Z不同，将会影响到检波器的有效灵敏度、阻尼系数和频率特性。

The analysis of vibration characteristic of geophones shows that different geophone array circuits creat different impedances ( Z ) of external circuit , causing the corresponding variations of sensitivity , damping coefficient and frequency of geophone .

采集方法设置多个区块，每个区块设一条主测线，将检波器埋置在20m深的井中接收，用纵和非纵激发相结合的单次三维观测方法采集。

Then put a geophone into a well of 20 m depth . The acquistion is by single 3-D observation method combining vertical excitation with non-vertical excitation .