A high-voltage system of a differential spectrometer for measuring the neutron electric dipole moment

A system of hardware and software for supplying a bipolar high voltage of up to 200 kV to a differential spectrometer that measures the neutron electric dipole moment is described. The high-voltage source is based on two 10-cascade voltage multipliers using quasi-resonant technology. The hardware and application software allow operation of the system in the manual, semi-automatic, and automatic modes.     

用于闪电瞬态电场测量的高速采集系统设计

利用A/D转换芯片AD9057和基于Pockels效应的闪电电场传感器设计了一个闪电瞬态电场测量的高速采集系统,给出了高速采集系统的硬件电路和软件程序设计流程图。该系统主要包括:闪电电场传感、高速A/D转换、数据存储、数据处理。通过对闪电电场高速采集系统的硬件和软件设计,解决了数据采集过程中存在的高速A/D转换的速度与低速智能管理的速度不匹配问题,实现了带宽为0~10MHz的闪电瞬态电场信号采集。     

一种高分辨率数据采集系统的设计

针对石油测井采集信号的特点,设计了一种高分辨率24位数据采集系统。给出了单片机和A/D转换器的接口电路,设计上位机控制软件。该采集系统采样最大频率为32ksps,可超前采集1s,采集数据以二进制文件形式保存。     

A real‐time image dynamic range compensation for scanning electron microscope imaging system

This paper presents the development and implementation of a real‐time dynamic range compensation system for scanning electron microscope (SEM) imaging applications. Compared with conventional automatic brightness contrast compensators that are based on the average image or pixel intensity level, the proposed system utilizes histogram‐profiling techniques to compensate continuously the dynamic range of the processed video signal. The algorithms are implemented in software with a frame grabber card forming the front‐end video capture element. The proposed technique yields better image compensation compared with conventional methods.     

MCGS组态软件在疏水阀型式试验数据采集系统中的应用

在进行疏水阀型式试验中,将组态软件应用于数据采集系统,取得了良好的效果。本文介绍了在MCGS组态与运行环境下,为试验数据进一步进行处理提供方便的试验数据存储格式的组态方法,解决了处理繁杂试验数据的问题。同时探讨了MCGS与各子系统的智能仪表用串口同步通信的方式来采集数据的组态方法。     

专用高速数据采集器的设计方法

本文介绍了一种用于特定场合的高速数据采集器的设计方法,其采样频率为２０ＭＨｚ,分辨率是８位特性的同时还讨论了高速数据采集系统地设计中需要注意的几个问题。     

一种多路数据采集系统通信模块设计

本设计主要讲述了PC机与AT89C51单片机之间的串口通信的设计。由单片机采集信号,将信号传送给PC机显示,PC机程序用VB编写,单片机程序用C语言编写,最后用Proteus软件进行仿真实现串口通信。根据串口通信原理建立的PC机与单片机间的通信协议,利用VB对采集到的信号进行接收和描述,并将其显示在可视的VB界面当中。该数据采集系统还具有存储并形成数据曲线的功能,以便对信号进行分析和处理。     

一种基于REC.2020高清色域的视频级显微高动态范围成像方法

高动态范围成像已经成为数字显微镜发展的一大趋势。目前视频级高动态范围显微成像技术由于计算复杂度较高,还无法做到实时处理和显示。提出利用高清电视领域中的REC.2020色域变换,结合GPU实时加速处理技术,成功实现了高动态范围显微图像视频流的实时显示,图像具有良好的色彩还原性和细节恢复性。实验结果表明,设计的算法不仅能够提供稳定的高清、高动态范围视频,其细节和色彩还原性也有了很大的提高,突破了传统的高动态范围图像技术在成像速度和质量方面的限制。     

A flexible instrument control and image acquisition system for a scanning electron microscope

We have developed an instrument control and image acquisition system for use with scanning electron microscopes. By making the system flexible over a wide range of operating voltages, scan generation and image acquisition modes can be easily accommodated to a wide range of instruments. We show the implementation of this system for use with a custom‐built low‐voltage scanning electron microscope. We then explore the simple modifications that are required for control of two instruments intended for use as free electron lasers.     

基于Matlab的FIA-分光光度分析数据采集系统

设计了一种基于Matlab的FIA-分光光度分析数据采集系统。利用ISA扩展槽数据采集卡进行数据采集。首先用C语言编写程序对数据采集卡进行读写操作，然后在Matlab中将其编译为动态数据链接库，最后在Matlab中调用动态数据链接库完成数据采集工作。利用Matlab强大的数值计算功能还可以对数据做相应处理。     

A virtual experiment control and data acquisition system for in situ laser heated diamond anvil cell Raman spectroscopy

Doubled-sided laser heated diamond anvil cell methods allow simultaneous in situ confocal Raman measurements of materials up to megabar pressures and high temperatures. This paper describes a virtual control and data acquisition system developed to automate setups for simultaneous Raman/laser heating experiments. The system enables reduction of experiment time by ～90% in comparison to manual operations, allowing measurements of high quality Raman spectra of even highly reactive or diffusive samples, such as hydrogen at extreme conditions using continuous wave laser heating. These types of measurements are very difficult and often impossible to obtain in a manual operation mode. Complete data archiving and accurate control of various experimental parameters (e.g., on-the-fly temperature determination and self-adjusting data collection time to avoid signal saturation) can be done, and open up possibilities of other types of experiments involving extreme conditions.     

A digital radio interferometric data acquisition system

Results of designing a P1002M 16-channel digital radio interferometric signal conversion complex, which records data with a rate of up to 2048 Mbit/s in the VSI-H format, are presented. The frequency band varies from 100 to 1000 MHz. The bandwidths vary from 0.5 to 32.0 MHz. The P1002M system is compatible with analog data acquisition systems installed on radio telescopes of the Kvazar-KVO complex. The manufactured P1002M prototype is intended for installing on a PT-70 radio telescope (town of Ussuriisk).     

基于FPGA的高速数据采集系统的设计

针对传统数据采集系统采集频率和采集精度低的问题,开发了一种基于FPGA的高速、高精度数据采集系统。从硬件电路和驱动程序这两部分对系统进行了分析和设计,实现了基于FPGA的AD9740、AD9211和cy7c68001驱动时序,给出了基于vhdl的驱动代码和仿真结果。对实际电路经行了仿真、调试,给出了测试结果。试验结果表明,系统可以实现采样率为300MHz,采样精度为10-Bits。     

基于PCL-816和LabVIEW的高速数据采集系统设计

介绍了一种基于LabVIEW的高速数据采集系统设计方案.该系统以研华公司的高速数据采集卡PCL-816为硬件平台,采用中断触发方式进行数据采集,并将结果以图形显示.实验结果表明,该系统实现了数据的高速采集和实时图形显示.     

高速电主轴的温度数据无线采集系统设计

应用AVR ATmegal6单片机无线通信技术,设计电主轴温度数据无线采集系统.该系统的监控终端PC与AVRATmega16单片机通过无线信道进行通信,完成对电主轴运行状态的远程实时监控,为实现电主轴温升在线控制系统提供了数据基础.     

An ECRH control and data acquisition system on the gas dynamic trap

A control system for the electron cyclotron resonance heating (ECRH) complex installed on a gas dynamic trap (GDT) facility is described. The ECRH complex is based on two gyrotrons operating at a radiation frequency of 54.5 GHz with a total power of 0.9 MW and is intended for additional heating of the electron plasma component. The general structure of the complex is presented, and the requirements for control signals and parameter-measurement channels are considered. The control-system algorithm and the operator interface are realized using LabView 2010 for Linux. The required set of measurement and control channels is formed using programmable controllers. The developed system is presently used in experiments on microwave heating of plasma in the GDT facility.     

破碎机数据采集系统的设计研究

随着自动化程度的提高和设备的复杂化,设备维修费用越来越高,因此迫切需要利用信息技术提高生产和管理的自动化、智能化、数字化、网络化水平,降低每单位生产总值的能耗和物耗,进一步提高设备诊断技术水平和设备效率.本文为实现这一目标,设计了一套数据采集系统,从软硬件两方面考虑如何提高系统的效率.通过实验证明,该设计有效提高了整个系统的效率.     

A data acquisition system of the S/X-wave range of the radio interferometer for the universal time on-line monitoring

A system is intended for equipping radio telescopes with antennas of small (12–13 m) diameters, used in the very long baseline interferometers (VLBIs), including universal time on-line monitoring interferometers. The system operates in S- and X-wavelength ranges and process up to 8 signals with spectrum widths of up to 512 MHz, converts them into digital sequences with a 1024-MHz clock frequency, and forms data streams in the VLBI Data Interchange Format (VDIF) with a 2048-Mbit/s rate per channel. Data from each channel of the system via the 10G Ethernet interface are transmitted to the data buffering unit for their sending to the correlation processing center.     

基于SPCE061A的数据采集子站设计

以SPCE061A处理器和CAN总线控制器SJA1000为核心,设计了一种通用的基于CAN总线的数据采集通信系统.给出了系统的原理及整体结构,重点阐述了CAN总线智能节点的软硬件设计.试验表明:该系统结构简单、可靠性高、应用灵活且易扩展,数据传输稳定,具有广泛的应用前景.