期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
利用数据采集器系统研究RC串联电路的暂态过程 被引量:4
1
作者 吴肖 王笑君 +1 位作者 吕华 张少锋 《物理与工程》 2012年第4期21-23,共3页
利用数据采集器系统研究RC串联电路的暂态过程,绘制充放电电容电压曲线,测量电路的时间常数和电容器的电容.实验操作简单,测量精确,实现物理实验测量手段的数字化;实验数据显示、分析的智能化.
关键词 数据采集器系统 RC串联电路 时间常数 电容
下载PDF
枫树坝水库水情自动测报系统的升级改造
2
作者 程庆 《科技创新与应用》 2013年第17期172-172,共1页
介绍了枫树坝水库原有水情自动测报系统的状况及存在问题、对原有水情自动测报系统的升级改造、新系统的功能特点和运行情况。
关键词 枫树坝水库 水情自动测报 系统数据采集器 GSM通信 北斗卫星
下载PDF
开展《科学》课程探究性教学的三种方式
3
作者 赖莉飞 王笑君 《科学教育》 2004年第3期30-31,共2页
为开展科学课程的探究教学提出三种方式,即用数据采集器、观察、信息技术探究。
关键词 《科学》 课程改革 探究性教学 数据采集器系统 观察能力 信息技术
下载PDF
抛射体运动实验的新设计 被引量:1
4
作者 方佳琳 赖莉飞 《宁波工程学院学报》 2015年第2期25-28,共4页
利用PASCO数据采集器系统对抛射体实验进行重新设计,该设计能弥补现有实验的某些不足,能减小实验误差和增强实验的灵活性,并能丰富实验内容。
关键词 抛射体运动 数据采集器系统 传感器 新设计
下载PDF
The future of remote ECG monitoring systems 被引量:8
5
作者 Shu-LI GUO Li-Na HAN +3 位作者 Hong-Wei LIU Quan-Jin SI De-Feng KONG Fu-Su GUO 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2016年第6期528-530,共3页
Remote ECG monitoring systems are becoming commonplace medical devices for remote heart monitoring. In recent years, remote ECG monitoring systems have been applied in the monitoring of various kinds of heart diseases... Remote ECG monitoring systems are becoming commonplace medical devices for remote heart monitoring. In recent years, remote ECG monitoring systems have been applied in the monitoring of various kinds of heart diseases, and the quality of the transmission and re- ception of the ECG signals during remote process kept advancing. However, there remains accompanying challenges. This report focuses on the three components of the remote ECG monitoring system: patient (the end user), the doctor workstation, and the remote server, reviewing and evaluating the imminent challenges on the wearable systems, packet loss in remote transmission, portable ECG monitoring system, pa- tient ECG data collection system, and ECG signals transmission including real-time processing ST segment, R wave, RR interval and QRS wave, etc. This paper tries to clarify the future developmental strategies of the ECG remote monitoring, which can be helpful in guiding the research and development of remote ECG monitoring. 展开更多
关键词 Cardiovascular system ECG Remote monitoring
下载PDF
Evaluating instrumented Charpy impact strain signals using curve fitting equations 被引量:1
6
作者 M.B.Ali S.Abdullah +2 位作者 M.Z.Nuawi A.K.Ariffin Z.M.Nopiah 《Journal of Central South University》 SCIE EI CAS 2014年第2期600-609,共10页
An effective and simple way to develop equations from impact strain signals was proposed.Little research has been performed in this area,but this equation is very important for evaluating input signals in finite eleme... An effective and simple way to develop equations from impact strain signals was proposed.Little research has been performed in this area,but this equation is very important for evaluating input signals in finite element analysis impact tests and for obtaining additional information on material deformation and fracture processes under impact loading.For this purpose,dynamic impact responses were examined through signals obtained from a strain gauge installed on an impact striker connected to a data acquisition system.Aluminium 6061-T6 was used to extract strain responses on the striker during Charpy impact testing.Statistical analysis was performed using the I-kaz method,and curve fitting equations based on the equation for vibration response under a non-periodic force were used to evaluate the Charpy impact signals.The I-kaz coefficients and curve fitting equations were then compared and discussed with related parameters,such as velocities and thicknesses.Velocity and thickness were found to be related to the strain signal patterns,curve fitting equations and I-kaz coefficients.The equations developed using this method had R2 values greater than 97.7%.Finally,the constructed equations were determined to be suitable for evaluating Charpy impact strain signal patterns and obtaining additional information on fracture processes under impact loading. 展开更多
关键词 charpy impact curve fitting I-kaz signal and strain
下载PDF
Investigate the nonuniformity of low-energy electron beam with large cross-sections 被引量:1
7
作者 REN Jie HUANG JianMing +2 位作者 ZHANG YuTian LI DeMing ZHU NanKang 《Science China(Technological Sciences)》 SCIE EI CAS 2012年第4期997-1000,共4页
Over the past decades, low-energy electron accelerators have been used worldwide for surface curing and sterilization. The beam nonuniformity is an important parameter of the low-energy electron beam with large cross-... Over the past decades, low-energy electron accelerators have been used worldwide for surface curing and sterilization. The beam nonuniformity is an important parameter of the low-energy electron beam with large cross-sections. A simple and accurate measurement system of nonuniformity for the low-energy electron beam with large cross-sections was developed. The main concept consists in the measurement of nonuniformity, which is realized by using a linear actuator to drive two scanning wires through the beam's cross-sections at a fixed speed. The beam distribution can be obtained by sending/collecting the current signals to/from the Data Acquisition (DAQ) software on a laptop by a USB DAQ card. This device is very convenient for the performance testing of a new accelerator at the manufacturer's site. The distribution of the homemade low voltage electron accelerator EBS-300-50 was measured and evaluated. 展开更多
关键词 low-energy electron beam large cross-sections electron beam industry accelerator beam nonuniformity measurement
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部