重子数实验的数据获取系统

概述了重子数实验的实验装置,其中包括探测器装置和数据获取系统。简述了探测器的组成、功能和性能;着重叙述了数据获取系统之构成、功能及所解决的问题。触发判选与数据获取系统较大地抑制了噪声,提高了信噪比和测量精度。该数据获取系统有一定的通用性,其设计方案不仅用于重子数实验,也适用于其他实验如双β实验中所需的符合测量等。     

量子密钥分发实验数据采集系统

介绍了为验证量子密钥分发协议而设计的专用数据采集系统。目前,国外实验中通常采用的是用Rb原子钟来做基准时钟的模拟系统,价格昂贵,相比之下本系统是采用全数字技术,利用现在功能强大的现场可编程逻辑阵列（FPGA）来实现所有的逻辑,总线接口设计成PCI插卡方式,使用方便,容易升级,并提供多种工作模式,可以连续不间断的采样数据。所采样数据直接存储到计算机,为量子密钥分发实验提供了一个简单、有力的实验工具。     

The Debugging and Development of KODAQ Data Acquisition System

KODAQ (Kakuken on-line data acquisition system) data acquisition system was introduced from Japan on Dec., 2000. It is a multi-parameter DAQ system with the advantage of simplestructure, convenient use, stable running and cheap price. At present, lots of institute and university are using the system in Japan.KODAQ system follows the CAMAC standard, is based on PC and CAMAC crate controller,     

数字化反应堆集中数据采集系统研制

通过分析反应堆运行状态的数据对象,并针对反应堆的试验需求,设计基于数字化的集中数据采集与处理系统。该系统综合运用计算机总线、电气隔离、虚拟仪器、LabWindows/CVI平台和Access数据库等技术进行系统的软硬件设计,实现试验过程数据的自动采集记录、故障报警、数据融合分析和远程辐射监控等功能;基于多层构架的软件设计实现运行状态的界面显示和故障查询,提高数据采集的直观性和可靠性。试验证明,本系统运行稳定可靠,数据处理能力强、安全性高,操作简单易维护,提高了反应堆集中数据采集的数字化和自动化程度,达到了设计指标要求。     

Real Time Diagnostic Data Acquisition System for the Doublet III Tokamak Fusion Experiment

The Doublet III data acquisition computer system acquires, archives, and processes over three megabytes of data from each shot of the experiment. A shot lasts 1-2 seconds and occurs every 5-6 minutes with 50-100 shots/day. The data acquisition system has been configured to efficiently handle the increasing quantity of data as new plasma instruments are added (five megabytes within a year) and to provide interactive capability during operations. The configuration is a dual CPU system with a dual port disk and bulk core memory. One CPU is devoted to acquisition and archiving while the other CPU is for analysis and interactive use. This system has enabled improved shot-to-shot processing of plasma data thus providing guidance to the physics operations team. A planned upgrade of Doublet III will require data handling of over 20 megabytes/ shot.     

Software Strategies and Hardware Upgrades to the PPL Data Acquisition System (DAS)

This paper describes upgrades to the Data Acquisition System for the Experimental Projects Department at PPPL, especially in support of the PBX-M upgrade to be completed this year. Hardware and software maintenance problems with the old configuration, consisting of a DEC KL-10 and eight PDP-11's, are described. The real-time software and hardware performance requirements and projections for CAMAC I/O and data analysis and display are presented. Described are three applications that have realtime requirements and are located on separate processors, connected to PPPL's VAX Cluster by an Ethernet link. Building upon a previous large software base, general-purpose subroutine libraries and utilities are being emphasized. The most useful of these are described. The use of software packages from DEC, third-party vendors, and the fusion community, is also described. The new approaches to software development that are being incorporated into the DAS efforts are discussed. Specific future challenges are also described.     

The Development of Data Acquisition and Remote Real-Time Display System for EAST NBI

The data acquisition and remote real-time display system for the neutral beam injectors (NBI) on experimental advanced superconducting tokamak (EAST) are described in this paper. Distributed computer systems including local data acquisition (DAQ) facility, remote data server (DS), real-time display terminal are adopted with Linux and Windows operating system. Experimental signals are gathered by DAQ device at local working field. On the one hand, these gathered data will be sent to DS which runs on remote server main control layer on EAST NBI control network for saving and processing; on the other hand, these data will be sent to real-time display terminal which runs on remote monitoring layer on EAST NBI for displaying and monitoring experimental signals real-timely. Another point needs to be mentioned is that the real-time display software can call back historical data from DS for querying. The software of data acquisition and DS are programmed by C language while the real-time display software is programmed by Labview flow chart. The hardware mainly includes DAQ cards, server, industrial personal computer and others auxiliary hardware. Now the system proved to be performed well through experiments on NBI testing bed.     

The Microvax-Based Data Acquisition System for D?

A large array of MicroVAX computers will be used for high-speed data acquisition and online filtering in the D0 experiment at Fermi National Laboratory. We describe this system, as well as several smaller data acquisition systems now operational, with particular emphasis on the control and communication software. The computers in this array will run under VAXELN.     

FASTBUS—CAMAC数据采集系统在宇宙线EAS实验中的应用

本文以中日合作西藏羊八井宇宙线ＥＡＳ实验所使用的ＦＡＳＴＢＵＳ－ＣＡＭＡＣ混合数据采集系统为例，介绍了ＦＡＳＴＢＵＳ总线的主要特点，功能模块、控制模块以及与ＰＣ的接口功能和控制方法，并对ＦＡＳＴＢＵＳ的具体应用进行了深入的分析。     

可用于远程辐射探测系统的数据采集与监控平台的开发

针对目前企业、工厂的分布式布局以及远程监控的需要,同时基于产权的纠纷考虑,开发了充分利用现有可用的设备和技术,现场采用80x86硬件,软件系统MSDOS,应用软件自行开发,远程采用windows平台商用微机,利用oracle数据库读取配置,通过电话灵活监控远程现场的数据采集监控系统.该系统通过少许修改即可应用于多种场合,如机场监控、调度监控等.     

应用于在线煤质分析系统数据采集卡的研制

设计了基于PCI接口高速数据采集卡,设计中使用目前先进TMS320C6711 DSP芯片,使多道卡能够安装在PCI插槽中,扩大了兼容性,同时提高了多道卡信号处理速度和测量精度.实验表明:该数据采集卡可以快速检测出煤中碳、氢、氧、硫等元素的含量以及全水分、灰分、挥发分和低位热值等,而且检测结果都在误差允许范围之内.该仪器现成功应用于火电厂,为火电厂带来巨大的经济效益和社会效益.     

Development of Data Acquisition Card Driver for ICRH System on EAST

Presented in this paper is the development of the driver for the data acquisition card with a peripheral component interconnection （PCI） local bus on the ion cyclotron range of frequency heating （1CRH） system. The driver is mainly aimed at the embedded VxWorks system （real-time operating system） which is widely used in various fields of real-time systems. An efficient way is employed to develop this driver, which will advance the real-time control of the ICRH system on the experimental advanced superconductor tokamak （EAST）. The driver is designed using the TORNADO integrated development environment （IDE）, and implemented in C plus language. The details include the hardware configuration, analogue/digital （A/D） and digital/analogue （D/A） conversion, input and output （I/O） operation of the driver to support over five cards. The data acquisition card can be manipulated in a low-level program and meet the requirements of A/D conversion and D/A outputs.     

Development of Data Acquisition Management System for ITER DC Testing Platform

To acquire multi-channel signals with 10 kHz sampling rate from various front-end sensors, a Data Acquisition Management System (DAMS) based on MDSplus was designed for the International Thermonuclear Experimental Reactor (ITER) Direct Current (DC) testing platform. Due to a large number of experimental data generated from long-pulse operation, it is very important to view and analyze experimental data online during operation. To meet the requirement of online data processing, slice storage and thumbnail technology were applied in DAMS. The long pulse data is gradually written in MDSplus database. The DAMS has been verified in the ITER DC power supply testing platform.     

The Princeton Cyclotron Data Acquisition System

The Princeton Cyclotron minicomputer based data acquisition system is used for nuclear physics research. The system includes eight 13-bit resolution ADC's, computer readable scalers and a general analog and digital I/O crate interfaced to a Data General Eclipse S/230 with 80K words of memory running under the RDOS operating system. The acquisition program ACQUIRE is a general multiparameter sorting and analysis code capable of high data rates (40 kHz without loss for a repetitious pulser).     

The Crystal Ball Data Acquisition System

The data acquisition system for the Crystal Ball project at SLAC is described. A PDP-11/t55 using RSX-11M connected to the SLAC Triplex is the basis of the system. A "physics pipeline" allows physicists to write their own equipment-monitoring or physics tasks which require event sampling. As well, an interactive analysis package (MULTI) is in the pipeline. Histogram collection and display on the PDP are implemented using the Triplex histogramming package. Various interactive event displays are also implemented.