According to the requirement of vibrating signal detection, this paper designs a multi-channel data acquisition system, which has a programmable signal amplifier, variable sample rate and sample time.

論文針對振動(dòng)信號檢測中數(shù)據(jù)采集和頻譜分析的需要在线观看午夜国产猫咪影院视频免费，設(shè)計(jì)了一種基于USB2.0的數(shù)據(jù)采集和譜分析系統(tǒng)欧美日韩有码A。

This text introduced a kind of AC data sampling terminal unit based on 80C196KC, including its calculating method of AC data.

摘 要：介紹一種采用16位單片機(jī)80C196KC設(shè)計(jì)的交流數(shù)據(jù)采集終端日韩精品在线不卡，給出了各種交流采樣參數(shù)的計(jì)算方法、硬件電路結(jié)構(gòu)框圖以及數(shù)據(jù)采集軟件的設(shè)計(jì)原理717秋霞理论电影网good。

In the software design, the image sampling flow are first discussed, and then a sensor compensation algorithm is proposed to equalize the sensitive error of each sampling unit in CIS, and at last, the image analysis scheme is discussed.

在軟件設(shè)計(jì)中亚洲国产日韩欧美，首先討論了圖像采集流程，然后提出了傳感器補(bǔ)償算法强奸乱伦免费视屏，用于補(bǔ)償CIS各采集單元的成像誤差中文字幕一级毛片在线，最后討論了圖像分析流程。

So we designed a adaptive synchronizing controller based on hereinbefore hardware environment: first a small magnitude reference signal r is outputted to system through the signal card (to ensure that the vibrating system works in a linear state), and this signal is sent to the moving coil of vibrator through the power amplifier, so vibration is produced through electromagnetic induction. Secondly the vibration signal can feedback to the data acquiring card in the servo system through the acceleration sensor on the Vibroseis reactor M〓 and the base-plate M〓, then the computer can get the current vibrating state y〓 of the coil of vibrator according to the feedback information from the data acquiring card, and give a real time comparing between the current state y〓 and the reference output y〓 of the set-in reference model with current reference input being r , then regulates the correlative controlling parameters according to the error e〓=y〓-y〓 till y〓→y〓, finally normal signal sweeping begins with a certain phase fixed. Meanwhile a synchronization signal for seismic signal record is sent to seismograph from synchronization signal outputting component in the Vibroseis system to perform the controlling process of synchronization of sweeping phases.

為此Jizz国产精品网站，我們基于以上的硬件環(huán)境設(shè)計(jì)了一個(gè)自適應(yīng)同步控制器：首先通過信號發(fā)生卡對系統(tǒng)輸出小幅度的參考信號r(從而保證振動(dòng)系統(tǒng)工作處于線性狀態(tài))女子一级裸体毛片高清视频网站，信號通過前置放大器、功率放大器等送到激震器動(dòng)圈国产一区二区三区91免费播放，并通過電磁感應(yīng)產(chǎn)生振動(dòng)国产操网，振動(dòng)信號通過可控震源激震器反應(yīng)塊M〓和基板M〓上的加速度傳感器反饋給伺服系統(tǒng)中的數(shù)據(jù)采集卡，工控計(jì)算機(jī)根據(jù)采集卡的反饋信息性感丝袜黄色网站免费在线A片，獲取當(dāng)前激震器動(dòng)圈的振動(dòng)狀態(tài)y〓国产精品igao视频网网址免费播放，并實(shí)時(shí)地將該狀態(tài)與內(nèi)置的參考模型在當(dāng)前參考輸入r下的參考輸出y〓進(jìn)行辨識，再將兩者輸出誤差e〓＝y(tǒng)〓-y〓對系統(tǒng)的有關(guān)控制參數(shù)進(jìn)行調(diào)整二区在线网站，直至y〓→y〓人人摸人人爽一及片，最后在經(jīng)過某一固定的相位后，開始信號的正常掃描過程亚洲无码色色操，與此同時(shí)无码一区二区三区av免费，由可控震源系統(tǒng)的同步信號輸出部件向地震儀送出一地震信號記錄同步信號，進(jìn)而完成掃描相位同步控制過程免费黄色网站查询。

The former is the core of hardware, it is based on industrial control computer that expended with analog signal input board and digital signals input and output board.

其中工控機(jī)是自動(dòng)化測試系統(tǒng)的硬件核心黄片你懂的，在工控機(jī)內(nèi)擴(kuò)展了數(shù)據(jù)采集卡和數(shù)字量I/O卡，完成對電源輸入一级又黄又粗毛片视频、輸出信號的采集和對系統(tǒng)的控制aaaaaa性欧洲。

According to these theories, a special mechanical test platform is established, the design and debugging of the temperature signal processing board are finished and the data acquisition and analysis system about the High speed motorized spindle is established based on the PC and data acquisition card.

在上述理論研究的基礎(chǔ)上，搭建了高速電主軸專用的機(jī)械平臺久久伊人精品免费视频，完成了溫度信號調(diào)理板的設(shè)計(jì)與調(diào)試国产天天在线视频，并構(gòu)建了基于PC+數(shù)據(jù)采集卡的高速電主軸數(shù)據(jù)采集及分析系統(tǒng)。

The system lays NI PXI box,signal conditioning and data acquisition module in different places of the compressor with LabVIEW as the software platform to realize monitoring functions such as multichannel data acquisition,signal analysis,data store,data recall and so on.

通過在壓縮機(jī)不同位置分布NI PXI機(jī)箱和信號調(diào)理最新福利一区、采集模塊成性交免费视频，LabVIEW為軟件開發(fā)平臺，實(shí)現(xiàn)了多通道數(shù)據(jù)采集小蝌蚪视频破解软件下载安装、信號分析欧美一级性爰，以及數(shù)據(jù)存儲(chǔ)性爱视频毛片、歷史數(shù)據(jù)復(fù)現(xiàn)等監(jiān)測功能。

In this paper an order tracking technique and double threshold trigger technique are developed to ensure the synchronous data acquisition and to eliminate the disturbance and noise in rocket speed signal.

由此可保證各倍頻分量幅值的精度狼友视频首，減少頻率泄漏www.yes235.com，同時(shí)保證了各幀數(shù)據(jù)具有相同的相位基準(zhǔn)。同步99久久久码国产精品性、同相基整周期采集需由轉(zhuǎn)速信號觸發(fā)采集來實(shí)現(xiàn)日韩精品老熟女系列视频在线。一般情況下，渦輪泵轉(zhuǎn)子上的測速盤為多齒盤女人高爱潮一级AA片视频下载。

Aim\ The sine wave curve fit method is introduced which is a simple and useful evaluation method to evaluate the sampling rate of data acquisition systems.

目的 介紹數(shù)據(jù)采集系統(tǒng)采集速率的一種簡單實(shí)用的精確評價(jià)方法老女人肏屄视频，即正弦波擬合評價(jià)法。

A new approach for measuring metal linear expansion coefficient is presented where CCD data collecting system is used and the single slit diffraction principle referred to in measuring the elongation extent to which the metal body expanses as the temperature increases.

根據(jù)單縫衍射原理v黄片視頻，利用CCD數(shù)據(jù)采集系統(tǒng)來測量金屬體隨溫度升高的伸長量美女让男人扒开退桶出白浆，給出測量金屬線膨脹系數(shù)的一種新方法。此方法采用CCD圖象處理技術(shù)與計(jì)算機(jī)技術(shù)相結(jié)合欧美性爱在线三区，實(shí)現(xiàn)了數(shù)據(jù)采集色欲色欲www图片、計(jì)算處理自動(dòng)化。