【導(dǎo)讀】它由計(jì)算機(jī)、應(yīng)用軟件和儀器硬件組成。無論哪種虛擬儀器系統(tǒng)，都是將。積，并通過軟件實(shí)現(xiàn)對(duì)數(shù)據(jù)的顯示、存儲(chǔ)以及分析處理。從發(fā)展史看，電子測量儀器經(jīng)歷了。由模擬儀器、智能儀器到虛擬儀器。由于計(jì)算機(jī)性能以摩爾定律飛速發(fā)展，并給虛擬儀器生產(chǎn)廠家不斷帶來較高的技術(shù)更新速率。虛擬儀器技術(shù)的優(yōu)勢在于可由用戶定義自己的專用儀器系統(tǒng)，且功能靈活，很容易構(gòu)建，尤其在科研、開發(fā)、測量、檢測、計(jì)量、測控等領(lǐng)域更是不可多得的。虛擬儀器技術(shù)先進(jìn)，十分符合國際上流行的"硬件軟件化"的發(fā)展趨勢，因而常被稱。以和高速數(shù)據(jù)采集設(shè)備構(gòu)成自動(dòng)測量系統(tǒng)，而且可以和控制設(shè)備構(gòu)成自動(dòng)控制系統(tǒng)。統(tǒng)儀器體積相對(duì)龐大，多種數(shù)據(jù)測量時(shí)常常感到捉襟見肘，手足無措。大幅降低卻不可不提。條件下，相應(yīng)的虛擬儀器價(jià)格要低二分之一甚至更多。于實(shí)現(xiàn)測控網(wǎng)和信息網(wǎng)的統(tǒng)一。在這樣構(gòu)成的測控網(wǎng)絡(luò)中，傳統(tǒng)儀器設(shè)備充當(dāng)著網(wǎng)絡(luò)中獨(dú)立

　　

【正文】 ntrollability discriminate, state prediction, intelligent control, pattern recognition, not directly measured object to measure indirectly, to the special predict the measure and signal filtering object, etc。 Meanwhile, measurement of the tested object is reflected in the description and said, according to actual needs and from traditional numerical add take direction, extending for the error by natural language and can also be highly abstract words or symbols, appeared to represent the socalled symbolic measure concept. In the traditional sense not contained ten measurement categories software testing, now, software has bee a modern new instrument of instruments and equipment of puterization is the important ponent. Therefore, in order to guarantee the quality and performance of the software security, a foreign year ago has begun to make test software norms or standards. Therefore, relying on in these modern test and measurement and control technology rapid development, the traditional measuring the meaning, purpose and function are got rich and expansion. This rich and expand naturally adumbrative work technology to measure the injection and seepage field measurement, and will lead to new ideas and concepts on the concept of produce. Modern high the rapid development of science and technology, effectively promoted the development of technology of instrumentation. Instrumentation development will follow the following general puter go, follow general software go and follow standard work go guiding ideology。 Instrument standards will to a puter standards, iquette close. Relying on in intelligence, and the increasing popularity of microputerbased instrumentation, working measurement technology that has been the scene maintenance and certain products manufacturing automation, also will implement in instrumentation factory calibration. Modern industrial production and recognitions more and more fields. Following the puter is instrument and software is instrument concept, after the formulation of the work is instrument has emerged. The latest of a web function of modern measurement instrument field, are eagerly looking forward to people to work is instrument formulation gives more scientific description. Serving people from any location, in any time can get measurement information (or data) all hardware and software, the anic set conditions already went far beyond the traditional single type of independent instrument, and also is not traditional category of single type independent instrument, and must not simple bination of electronic information transmission media, namely electronic information carrier. No electronic information carrier, the interface at any time, from any location acquisition measurement information it is absolutely impossible to achieve. Information carrier, and more and more electronic measurement result by cable, optical fiber need Inter, mobile munications, TV media transmission and display (output), is the evolution of a covered with a wider, application field broader new modern measuring technology work measurement technology gradually formed and increasingly clear process. Network technology has gradually bee the main instrument control and measuring tool. Further expand from the Angle of instruments and equipment definition, and according to the characteristics of work measurement technique, we try to serve people from any location, in any time can get measurement information (or data) in all conditions of hardware and software of anic set is called work instrument. Traditional test (measured) instrument or system once working, namely once with a suitable electronic information carrier together formed work instrument, then as telemunications service operators today already can remote testing is same, can do from any of the places on earth at any time, any place, can get the measurement information he needed. Instrumentation and measurement technology development and modernization of traditional notions of corresponding breakthroughs and extension, is the inevitable produced work instrument concept and premise. The establishment of work instrument concept, the possible as early as possible in the future more helps people clearly instrument measuring appliance Ramp。D strategy, promote and accelerate the modern measuring technology faster and more widespread popularization and development. Measurement technology and virtual instrument development trend expectation: instrumentation and measurement technology development and modernization of traditional notions of corresponding breakthroughs and extension, is the inevitable produced work instrument concept and premise. The establishment of work instrument concept, the possible as early as possible in the future more helps people clearly instrument measuring appliance Ramp。D strategy, promote and accelerate the modern measuring technology faster and more widespread popularization and development. Along with the puter technology, work munication technology progress and to develop unceasingly, the 21st century will be a the instrument concept of open system concept. To PCS and workstations established as the foundation, through the work to shape (anizations) into practical measurement and control system, improve the production efficiency and share information resources, has bee a modern instruments development direction. In a sense, puters and modern instruments have mutual tolerance, the puter work is general instrument work, if in the measurement system with more different types of intelligent device also like puters and workstation as work node access works, such as all kinds of intelligent instruments, virtual instrument and sensor etc, they make full use of currently has more mature Inter work facilities, not only can realize more resources sharing, reduce the cost a system, whic