【正文】 ations can be said to be a revolution in the field of equipment, but for a long time, whether they are in our physical education activities, Still dominated by traditional instruments, puters and measuring instruments are basically still in the isolated state, which will greatly affect our understanding oftheart equipment and hands, so learning some basic knowledge of the virtual instrument is quite necessary. The virtual instrument panel has a virtual personal puter equipment. It is mon personal puterbased simulation software function and control of hardware ponents. Operators through friendly graphical interface and graphical programming language to control the operation of equipment, plete testing by the volume of the collection, analysis, judge, show that the data generated and stored. Virtual machines have the following characteristics. 1） Virtual instruments to make full use of puter hardware and software resources to break through the traditional instruments in data processing, storage and expression, and other restrictions, have made traditional instruments unparalleled. 2） Software is the core of the virtual instrument. In general puter platform to configure the appropriate modular hardware, the next great deal of work is the preparation of the software. 3） Virtual instrument structure flexible, easy to upgrade, virtual instrument hardware structure is relatively fixed, and the software does have a great deal of flexibility to upgrade the operating system or software, virtual machines can be updated replacement. Virtual machines for its outstanding merits, have shown strong vitality, and the emergence of widely used test equipment will have a very profound impact. 2 .the position and apparatus operating principle With the pletion of a number of parameters of the equipment has been tested in the field of measuring a real problem with traditional instruments often very difficult to achieve. The most mon is by increasing the types of equipment to multiparameter measurements, but this only increased the cost of measurement, but also reduces the reliability. The use of virtual instrument design, can easily achieve a number of parameters of measurement, the instruments to test the temperature, force, pressure, displacement, mechanical vibration parameters 5, a total of 6channel, the channel testing with the exchange, At the same time can be measured one or more of the parameters. We use temperature, force, pressure, displacement, vibration sensor signal conditioning devices with the pletion of the acquisition and signal amplification。s Lab Windons software development platform for the preparation of the procedures in running under the Windons98. 5. Conclusion Using virtual instrument multiparameter measurements simplifying the hardware can greatly reduce the cost of equipment and increase the reliability of the test. Virtual machines on the traditional instruments of the concept of a major breakthrough in its flexible structure, the operation simple and intuitive, easy to upgrade and many other advantages, has bee a plex apparatus and instrument of choice for multifunctional design. With the puter in China to further universal, virtual instrument is bound to be more widely used, it is bound to make physical education a greater contribution. 虛擬儀器實現多參數測量 呂冬梅 呂翔 物 理系 , 貴州 3422站 , 貴州 遵義 [摘要 ] 介紹虛擬儀器的概念和優(yōu)點 , 詳細闡述用虛擬儀器實現多參數測童的設計過程。TG8 文獻標識碼 A 文章編號 1009一 4334(2022)03一 0086一 03 一、引言 儀器儀表長期以來在實驗科學中占據著十分重要的地位 , 儀器儀表也是我們進行物理教學 ,開展物理實驗的一個重要基礎。操作人員通過友好的圖形界面及圖形化編程語言控制儀器的運行 , 完成對被測試量的采集、分析、判斷、顯示、存儲及數據生成。在通用計算機平臺上配置合適的模塊化硬件設備后 , 接下來 的大量工作便是軟件的編制。最常見的是靠增加儀器的種類來實現多參數的測量 , 但這不僅增加了測量費用 , 而且還降低了可靠性。儀器硬件主要負責信號調理和模數轉換 , 通過 PC總線與計算機進行數據交換。為覆蓋較大測量范圍并滿足一定的測量精度 , 各參數選用不同測量范圍的多只傳感器。為便于攜帶 , 本儀器采用的是便攜式計算機。20K的采樣速率按保守的算法也可達到 5kHZ的帶寬 , 符合一般機構振動參數的動態(tài)測試要求 , 其余的溫度、力值、壓力、位移都是靜態(tài)參數 , 對儀器的頻率帶寬沒有太高的要求。 虛擬面板即用戶界面 , 是用戶與儀器交流 信息的橋梁。 各參數測量軟件采用模塊化結構 , 既合理劃分各測量模塊 , 又增強采用公用部分的通用性 , 并提供復雜參數的圖形和表格輸出功能。虛擬儀器對傳統(tǒng)儀器概念的重大突破 , 它以結構靈活、操作直觀簡單、容易升級等眾多優(yōu)點 , 已成為復雜儀器和多功能儀器的首選設計方式。 LabVIEW。 on the other hand, the user can be some of the advanced digital signal processing algorithms used in the design of virtual instrument to provide the traditional desktop machines do not have the function, but also can be configured by software the realization of multifunctional integrated instrument design. Therefore, it can be said of virtual instrument measuring instruments on behalf of the future direction of design development. Virtual instrument technology is developing rapidly in foreign countries, the United States National Instruments (NI pany) to represent a group of vendors are already available in the market based on virtual instrument technology mercialization instruments designed products. Digital Oscilloscope in scientific research and engineering design of a widely used generalpurpose equipment. The following bination of a virtual digital oscilloscope design and development of virtual instrument details the basic position and based on the LabVIEW graphical programming language of the virtual instrument programming methods and technology. 1 Virtual Oscilloscope structure and position of The virtual digital oscilloscope PCI bus by a multifunction data acquisition card and the corresponding software. They are installed on a PC running t