聲速測(cè)量實(shí)驗(yàn)報(bào)告范文共五則(參考版)
2024-10-27 19:52本頁(yè)面
【正文】 ，而校準(zhǔn)的目的是使測(cè)試值更加精確，減少儀器的誤差。實(shí)驗(yàn)完成。把被測(cè)金屬長(zhǎng) 片的一端用手按在桌沿，使它伸出桌面。40000με，濾波頻率 設(shè)置為20Hz，界面如圖3；，選擇“自動(dòng)校準(zhǔn)”，設(shè)置界面如圖4所示；。s “Software Instrument”(Softwareisinstrument)pletely broke the traditional instruments can only be given by the manufacturer the user can not change the intelligentWith cuttingedge technology(such as aerospace, weapons engineering)and highrisk project development needs of electronic measurement technology increasing degree of in recent years the field of embedded puter technology development to enhance the intelligence of electronic measuring instruments provide good in recent years, such as embedded chip FPGA, ARM, CPLD, etc., they are a highreliability, high stability, fast immediately applied to electronic measuring microputerbased processing technology microprocessor allows the measurement methods of measuring instruments diversification measure realtime and highly intelligent.Ⅳ.DDS technology development historyIn the traditional field of electronic measurement and instrumentation, PLL Frequency Synthesizer(PLL)is the most monly used frequency co into electronic measurement and instrumentation industry continues to develop, for frequency synthesis techniques are increasingly high emerged in the midcentury direct digital frequency synthesis(DDS)is an alldigital frequency synthesis technology, due to its special principle and structure, so that in electronics, munications, access to a growing range of the field of electronic measurement and instrumentation, DDS The main applications include: audio testing, product testing, the instantaneous power signal reproduction, shock and vibration test, medical test equipment, conventional waveforms and arbitrary waveform generator, high precision, multifunction modulation etc.Ⅴ.ConclusionIn summary, in the 21st century electronic measuring instruments with chip technology and DSP technology will reach an unprecedented high performance, with puter technology and the further integration of the instrument, the instrument39。memory, hard disk storage capacity and speed。s modular, reduce costs, improve application flexibility, greatly improving cost software technologyFrom the history of the development, electronic measurement instruments has gone from analog instruments, intelligent instruments to the history of virtual instruments, which are based on each leap advances in puter technology as the driving the rapid development of puter technology, puter digitized using static and dynamic analysis of the ideal test has finally bee a of several key technologies, including puter precision, speed。Instrument.Ⅰ.IntroductionWith modern science and technology and the development of industrial production, the measurement of a higher , realtime, accurate,automatic measurement has bee the mainstream of the development of modern measurement be said that there can be no measurement signal analysis and processing, access to information to bee a talk, based on the information on the information technology and puter technology has bee a source of , with its submeasurement technology many advantages to bee the protagonist of modern measurement technology in information acquisition and industrial control does not play alternative century, is based on the LSI important period of development, it also brings electronic measuring instrument technology LSI large number of applications, making the modern electronic measuring instruments are smaller, more prehensive, higher reliability, lower power , puter technology and software technology for the electronic measurement essentially leap – virtual intended to produce the instrument, made a great contribu
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