【正文】 五、實驗結(jié)果實驗結(jié)果如圖5所示：六、思考題，1/4橋接法應用于一個應變片，前者的橋盒上多接了一根兩個應變片的共用線，少了一個短接插片。把橋盒連接到試驗儀上，試驗儀已與電腦連接。puter and A / D price issues have been with a variety of functions dedicated software the rapid development of a new technology emergesvirtual instrument(VirtualIstrument, referred to VI).VI technology development and application of the United States from 1986 designed by NI LabVIEW, it is a graphicsbased development, debugging and running programs integrated environment to realize the concept of a 39。s needs, and this is the most important new bus standard applications in the United States, the Chinese munity are very much appreciated, numerous after years of exploration, the country has made great progress in the implementation of certain aspects of the specific application, especially in the application of many military radar wave electronic test equipment to advanceNumerous civilian and military electronic equipment in the millimeterwave development, particularly in the military field, and its development more Taking into account the future of electronic warfare systems signal environment will reach 12 million pulses / sec, equipment systems may want to perform several one hundred million , the current IC processing power can not meet the requirements of military electronic equipment, which will affect the next generation of electronic warfare systems operational capability, this must be the development of ultrahighspeed integrated circuits(VHSIC).So from a monolithic integrated circuit chip set test into several one hundred thousand to one million across several, which correspondingly substantial increase in the difficulty of the test.Ⅲ.Electronic Measurement Technology Trends and modularSince the measurement instrument interface standards harmonization and bus technology development, electronic measurement instruments and puter gradually melt as a measuring instruments and mutual sharing of data between the control and the standard interface through the bus station with a puter connected to the network constituted time as the instrument39。Measuring。針對這一情況,還應該在研究國外電子測量儀器發(fā)展趨勢的同時,深入到我國儀器用戶中去,了解他們的需求,研制出適合我國國情的電子測量儀器,推進國產(chǎn)電子測量儀器向國際先進水平邁進，并且來促進我國的電子測量行業(yè)的快速發(fā)展。另外,隨著社會信息化程度不斷加強,測量需求也在不斷改變,例如測量范圍不斷擴大,測量精度要求越來越高,要求測量數(shù)據(jù)實時化處理等。(4)以通用計算機為基礎建立的可編程虛擬儀器。其硬件由個人計算機、多個測試功能模塊及接口、儀用標準接口等組成。智能儀器又稱為靈巧儀器,它是將人工智能的理論、方法和技術(shù)應用于儀器,使其具有類似人的智能特性或功能的儀器。在實際測量中,不僅要求連續(xù)實時顯示,而且要求實時處理大量的測試數(shù)據(jù)。目前,我國制造業(yè)發(fā)達、服務業(yè)興旺,各種電器產(chǎn)品的研制生產(chǎn)維修服務、各種用戶需求都用到越來越多、劃分細致的各種電子測量儀器,市場前景樂觀、產(chǎn)品開發(fā)大有作為。近幾年,數(shù)字化儀器在迅速發(fā)展,我國也在不斷研制并推出各種新型數(shù)字化儀器,譬如數(shù)字示波器、數(shù)字調(diào)制裝置、數(shù)字化函數(shù)/任意波形發(fā)生器、數(shù)字化頻率計數(shù)器等眾多產(chǎn)品。(5)通信測量儀器水平達到新的高度。另外它還在非線性、大功率網(wǎng)絡的測試和分析中發(fā)揮著重要作用。它將VME總線和GPIB結(jié)合起來構(gòu)成一個新的行業(yè)標準接口母線,是一個完全開放的適應多廠家儀器產(chǎn)品(模塊、插卡式)的行業(yè)標準。調(diào)制域測試技術(shù)是20世紀末出現(xiàn)的十分重要且技術(shù)難度很高的一門新興測試技術(shù),它是用來測量輸入信號隨時間變化的頻率值,所產(chǎn)生的顯示圖形代表信號調(diào)制域,是信號頻率值與時間的關系。二、國內(nèi)電子測量儀器發(fā)展的過去與現(xiàn)狀我國電子測量儀器大致經(jīng)歷了“模擬式數(shù)字式智能式、程控式”的發(fā)展歷程。(5)易于實現(xiàn)遙測和長期不間斷的測量,顯示方式又可以做到清晰、直觀。(2)量程很廣,由于所測量的大小相差極大,要求測量儀器的量程也極寬,同一臺電子儀器,經(jīng)常能做到量程寬達很多數(shù)量級。(3)元件和電路參數(shù)的測量,例如電限、電感、電容、電子器件(電子管、晶體管、揚效應管等)的測量,集成電路的測量,電路頻率響應、通頻帶寬度、品質(zhì)因數(shù)、相位移、延時、衰減和增益等的測量。電子測量也廣泛的應用于非電專業(yè)的測量。本文介紹了電子測量技術(shù)的發(fā)展狀況,并論述了電子測量儀器發(fā)展的過去與現(xiàn)狀。將RTK設置好后，采集測量區(qū)域周邊的三個角坐標，進行點校正。第三篇：RTK測量實驗報告實驗一：RTK（電臺模式）一 實驗過程（1）基準站和流動站參數(shù)的設置啟動手簿上的藍牙；建立文件并進行命名；手簿與基準站進行連接；對基準站進行參數(shù)設置；啟動基準站；對流動站進行類似的連接于設置；（2）GPSRTK數(shù)據(jù)采集方法及過程用手簿進行基準站和流動站參數(shù)的設置；完成手簿與基準站和流動站的連接之后就可進行GPSRTK測量工作了；選主菜單上的“測量”，選擇RTK，選擇“測量點”，就可以進行單點測量，在進行單點測量時，根據(jù)具體情況設定精度，若長時間搜索精度還是在浮動，則說明該點無法衛(wèi)星接收情況較差，無法測出。2）換能器的不完全平行。EV=%2）相位法測量聲速參考駐波法。V=V177。=179。3）把S2調(diào)回距S1大約3cm，移動接收換能器S2，調(diào)節(jié)游標卡尺微調(diào)螺絲，同時觀察示波器的圖形變化，使圖形為“/”，記下S2初始位置LO。記下S2的初始位置L0。記下頻率f值（實驗過程中，頻率f不許改變，否則影響實驗數(shù)據(jù)）。3）壓入示波器電源開關，把示波器Y衰減開關VOLTS/，Y輸入方式置AC位。壓電換能器產(chǎn)生的波具有平面性、單色性好以及方向性強的特點。p實驗內(nèi)容（1）熟悉聲速測定儀該儀器由支架、游標卡尺和兩只超聲壓電換能器組