The prerequisite of the course is physics, circuit analysis, analog circuit, digital circuit, medical sensor and medical instrument. 本课程的先修课程主要普通物理、电路分析基础、模拟电子技术和数字电子技术、医学传感器、医学仪器原理等。
A system for automatically recognition of analog measuring instrument which was based on image recognition 基于自适应图像识别的指针仪表检定系统
With a mixed digital and analog design example, comparing with the traditional virtual instrument, it indicated that the function of modern virtual emulative instrument is stronger, the usage is close to the practice more, which represents the development direction of virtual instrument. 通过与实际仪器的比较,以及具体数模混合电路的仿真分析,说明了现代虚拟仿真仪器比传统虚拟仪器功能上更强大,使用上更贴近实际,是今后虚拟仪器的发展方向。
The External Interference of Industrial Analog Instrument and its Minimization 工业模拟仪表的外部干扰及其处理
At the present time, most SPM in China only stay on the level of analog quantity control, which is the intrinsic reason that the instrument can't be further refreshed. 目前,国内SPM仪器大多还停留在模拟量控制的水平,仪器本身无法在本质上做进一步的更新。
Digital Analog Test Instrument Development and Application 数模混合测试仪的开发应用
In linear and nonlinear mathematical model, because output value subtracted from input value gives value of error compensation, we can use calibration data in any analog input channel in virtual instrument to build mathematical model for every value of error compensation. 本文按照输入量减去输出量等于误差补偿量的原则,对虚拟仪器模拟通道的每个误差补偿量依据校准数据进行数学建模,使用误差回归模型的最小二乘法进行参数估计。
The application of a set of 'analog signal bus' makes the instrument realize analog signal parallel procession by pipelining, and makes multi-channel data-acquisition come true conveniently. 同时,利用一组模拟信号总线使仪器能对模拟信号进行流水线式并行处理,很方便地实现多通道数据采集。
Digital test technology is a faster development technology in these years, which was widely used in instrument. The technology has more accuracy 、 more stability and more resisting disturb than analog instrument. 数字化测试技术是今年来发展较快的一门技术,在仪器仪表中有着广泛地应用,在精确度、稳定性和抗干扰方面都远远的超过模拟式仪表。
After adjusted the voltage of analog signal, corresponding channel selection was implemented with relay matrix. The analog signal is transmitted as the input of tested instrument. 输出的模拟信号经电压调整后通过继电器矩阵完成相应的通道选择,作为被测试设备的输入信号。
Development of Analog Torsional Vibration Measuring Instrument 模拟式扭振仪的研制
The analog circuit on-line testing instrument based on VXI bus computer can complete the fault diagnosis to many analog components which are in the circuit board with the help of several virtual-instrument cards. 以ⅤⅪ总线的计算机为平台,配以各种虚拟仪器卡,构成的通用模拟电路在线测试仪,能够完成对多种电路板中模拟器件的在线故障判别。
Design for Analog Circuit On-line Testing Instrument Based on VXI bus 基于VXI总线的模拟电路在线测试仪设计
Having calculation and control function as the microprocessor does, it reserves the priority of analog instrument. 它保留了模拟仪表的优点,又具有微处理机的运算和控制功能。
A new digital display recorder with indicator which integrates the advantage of analog display instrument and digital display instrument is introduced. 介绍一种集模拟显示仪表和数字显示记录仪表优点的新型带指针指示的数字式显示记录仪。
The platform is a part of network measurement and control lab, it is used to convert analog data to digital data and transfer these data to virtual instrument client in the Internet. 本文所完成的网络测控平台是网络测控实验室中的一个重要的组成部分,主要用于待测模拟量进行A/D转换并把数据通过Internet传输到虚拟仪器客户端。
As key technologies of DSO, the implement of broadband analog conditioner, the persistence display technologies based software and the realizations of virtual instrument technologies are described too. 本文阐述的DSO关键技术还包括:宽带模拟前端的实现、基于软件的余辉显示技术、虚拟仪器实现技术等。
The instrument can receive signals put out from all kinds of usual sensors, sample and transmit the field value and realize analog and digital closed loop control. Besides the instrument can sample data in field, transmit data and control equipment in field. 该仪表可集各种常用传感器信号的测量功能于一身,并同时具有模拟量、数字量闭环控制功能,能够实现现场数据的采集、传输与控制。
The fast development of mixed signal chip which make a chip can process analog signal 、 digtal signal meantime and make instrument on a chip become realization. 数模混合芯片的飞速发展,使得芯片既可以处理数字信号又可以同时处理模拟信号,使片上仪器的实现成为可能。
An all digital integral optical measurement technology is presented. The comparison between the analog and digital system has been discussed. A series of all digital optical measurement instrument has been researched and developed. 介绍了积分式光测技术的最新进展&全数字积分式光测技术,对比了全数字光测技术和传统技术的优缺点,并在此基础上研究开发系列全数字光测仪器。
Based on the analysis of principles and construction features of analog torsional vibration measuring instrument, some factors which influence measure accuracy are pointed out. 分析了扭转振动的非接触测量方法原理及模拟式仪器结构特点,指出了影响测量精度的因素。
The paper deeply inquires into the reason about discarding analog filter from nowaday instruments in respects of seismometer developing history, theory of analog filter, principle of reflecting wave and viewpoint of instrument factories. 文章从地震仪器发展史,模拟滤波器理论,地震反射波原理以及目前各仪器厂家所持观点等几个方面深入探讨了目前地震仪中去掉模拟滤波器的原因。
For the output in analog signal of the imported analysis instrument, the interface between the instrument and the PC is designed, as well as the data for data transmission and communication software, which constituting the whole PC-controlling analysis system. 进口的分析仪器模块带有模拟数据输出单元,本文设计开发了分析仪器与计算机的接口、数据传输单元、以及相应的通讯软件,构成了完整的计算机控制的分析检测系统。
The analog display instrument and the digital display instrument are the two styles of the traditional recorder. 传统的显示记录仪表有模拟式和数字式两种。
Analog instrument automatic reading recognization is a key point and the foundation of instrument automatic calibration system. 指针式仪表自动识别技术是实现仪表检定自动化的基础和关键。
This chapter mainly introduces the following parts, the first is about analog signal process, which starts with instrument security and accuracy requirements, introduces analog signal process circuit before AD converter. 主要有以下的几方面:第一部分是模拟信号处理部分,这部分从仪器的安全性和测量的准确性角度出发,介绍了AD电路以及之前的模拟信号的处理。
By improving on the analog channel circuit, functions of instrument are perfected, performance of instrument is enhanced and debugging is easier. 2. 改进设计不仅完善了仪器的功能,提高了仪器的性能,而且调试更加简单。
Analog instrument is widely applied in actual projects. 摇表被广泛地应用在实际工程中。
Measurement technology has its history such as Analog Instrument, Component divided Instrument, Digital Display Instrument, Intellectualized Instrument, Auto-measurement System and Virtual Instrument assumably. 仪器技术大致经历了模拟式仪表、分立元件式仪表、数字式仪表、智能化仪器、自动测试系统和虚拟仪器等几个发展阶段。