signal testing

According to the design, a testing bed was established and the A/ D card was used to convert the collecting signal and send the signal directly into calculator.

根据设计方案在实验室中建立了实验台，使用A/D转换板对采集信号进行数模转换直接送入计算机；

BN signal testing were considered to be a better way for grain size.

结果表明可以利用巴克豪森噪声来测量铁磁材料的晶粒大小.

Considering detach strong and feeble electricity signal, inside electricity supply and signal wire, we devise the testing machine box.

在考虑到强电、弱电信号传输分开，内部供电电源与信号线路隔离以及信号屏蔽等问题，设计出了测试机箱方案。

STD bus type Master/ Slave CPU intelligent process method is used to realize Large scale switch variable deflection signal testing. The information is processed by using response logical circuit in hardware interface of I/ O testing system.

本文采用了STD总线式的主从CPU智能化处理方法，实现大规模开关量变位信号的检测，在I／O检测系统的硬件接口中采用应答逻辑电路进行信息的处理。

During the research, ultrasonic signal testing system was designated by adopting transform the average value of function to nought, optimizing of collection frequency and transducer frequency.

在研究过程中，采用零均值化、优化采样频率与探头频率的匹配等对超声信号频谱分析系统进行了标定。

Motive Axle Weight Signal Test on Vehicle Testing Line

汽车检测线轴重信号的动态测试

Method to The Signal Processing in Ultrasonic Testing of Carbon Materials

碳素材料超声检测的信号处理方法

A System of Signal Testing and Spectrum Analysing of Body Tremor

人体生理性颤动信号的测量与频谱分析系统

Design of train signal testing platform based on Agilent VEE

基于Agilent VEE的机车信号测试平台开发

Signal acquisition and processing system consists of temperature testing circuit, high speed electromagnetic valve drive circuit, pressure signal A/ D circuit and serial communication circuit and cam position acquisition circuit. Following the system function requirements, several important microchips were selected.

数据采集部分的设计主要包括温度测量模块设计、串口通讯电路设计、AD转换电路设计、凸轮位置检测电路设计以及排油电磁阀控制电路设计，同时根据系统参数要求，对关键芯片进行了选型。

Automobile Safety Testing Line Signal Sampling and Detection System Electronic Hardware Design

机动车检测线微机检测系统硬件设计

The testing algorithm was given, and the anti interference algorithm for the ignition signal testing and the method to control rotational speed and testing sequence were mainly elaborated.

文中介绍了测试算法，着重介绍了转速控制、顺序控制的实现方法和点火信号测试软件抗干扰算法。

Leaky waveguide has a good anti-disturbance capacity with the stable signal through the results of test for operation line and testing line.

经过对运营线路和测试线路的监测发现，缝隙波导传输信号平稳，具有良好的抗干扰能力。

Design of portable speed and signal testing apparatus used on monitor device of locomotive

一种用于机车监控装置的便携式速度、信号测试仪

The system is composed of server, network switching, appling section, test section LED indicator, signal acquisition section, testing and controlling section and signal processing section etc.

系统由服务器、网络交换机、报检机、工位机、LED过程指示器、信号采集单元、检测控制单元及信号处理单元等组成。

Feature Extraction on AR Model About Ultrasonic Testing of Liquid Signal

基于AR模型对超声检测液位信号的特征提取