unit sampling 中文意思是什麼
unit sampling
解釋
單位抽樣-
Every sampling unit can be certain length, also can be unit of particular area, bulk or cubage, quality or quantum of time
每個取樣單位可以是一定長度，也可以是一定面積、體積或容積、質量單位或時間單位等。 -
Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。 -
The acceptance standard of water and steam integrated sampling and on - line analysing unit
水汽集中取樣分析裝置驗收標準 -
Some interface circuits are also used to realize other functions. the system is consisting of data sampling unit, data processing unit, master controlling unit and human - machine interface unit
主要包括數據採集單元、數據處理單元（ dsp單元） 、主機控制單元（ mcu單元）和人機介面單元等。 -
This system uses the mutual independent p89c58x2 single chip to be a sampling and judging and entering unit on the length, width and highly directions. in the meantime, the p89c58x2 carries on communication with the computer and transmits measuring data through rs485
在長度、寬度、高度三個方向上使用相互獨立的p89c58x2單片機作為采樣、判斷、進給控制單元;同時通過串列介面rs485與上位機進行通訊，傳送測量數據。 -
According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求，課題期間研製了下位機系統硬體和軟體，開發了上位機監控軟體，其中所作的具體工作包括：測量原理的研究和在系統中的實現，在本次設計中用三種方法來進行水位測量，分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元的應用給整臺儀器提供了時間基準，方便了儀器的使用；另外，針對研製任務的要求，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，並完成了程序設計；與上位機的通信介面設計，該部分通過兩種方法實現： rs232通信方式和rs485通信方式；系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。 -
And a kind of 16 - step automatic selective programmable amplifying circuit is designed in volume resistivity measuring circuit, so as to handle sampling little and broad signal. the control and disposal system with the core of microchip at89c55wd is analyzed on chapter 4. main function unit such as the interface circuit of lcd display and keyboard, the interface circuit of micro - printer, real time clock ds12c887, and hardware anti - jamming technique are discussed
本文還設計了以at89c55wd單片機為核心的控制處理系統的外圍介面電路及其軟體，對主要功能部分進行了分析，主要包括：鍵盤液晶顯示介面及界面設計、微型印表機介面、實時日歷時鐘晶元ds12c887 、單片機與單片機及單片機與上位機的通信設計以及控制系統硬體抗干擾措施等。 -
The system selects micro control unit and programmable logic device as the core of controller, gsm terminal module as communication device, gps as position equipment, a / d sampling for voltage and current checking, solar battery as power supply, switch dc - dc as power voltage conversion, and so on
以微處理單元與可編程邏輯器件為核心搭建系統控制器，選擇gsm無線通信模塊實現系統通信，全球定位系統實現水標燈定位， a d采樣與轉換實現電壓電流檢測，太陽能電池為系統供電，開關型dc - dc實現電源電壓轉換。 -
Analysis of gases. devices for the sampling of gases and their transfer to an analytical unit
氣體分析.氣體取樣及輸送至分析設備用裝置 -
The hardware of the detector consists of a metal oxide micro gas sensor array, gas sampling apparatus and a signal processing unit with high speed soc microprocessor
檢測儀硬體由微結構金屬氧化物氣體傳感器陣列、氣體進樣裝置及高速soc單片機為核心的信號處理電路組成。 -
Because the sonar system have high frequency, high resolving capability and 128 receiving channels, the unit can not only sampling, store and translate the receiving sound - signals, but also have the property of lower power
由於聲納系統工作在高頻率，並且具有高解析度和128個接收通道，所以水下單元的設計不僅能夠對接收聲信號進行高速採集、存儲和傳輸，而且還具有低功耗， 。 -
Through sampling survey of 74 papers, the following : heading, name, unit, abstract, key words, capitalization of references, plurality, punctuation, etc. is discussed
筆者抽樣統計了74篇論文，對其中英文邵分的標題、姓名、單位、摘要、關鍵字、參考文獻等單詞字母的大、小寫，單復數，標點符號等問題進行了探討。 -
Primary sampling unit
初步抽樣單位 -
Using the high - performance digital signal processor ( dsp ) as cpu, the author designs the medium - speed sampling and processing unit of the fault locator. on the one hand, this unit can sample voltages and currents of the line synchronously ; on the other hand, this unit can start the fault locator up and select the fault lines when faults occur
本文作者還以高性能的數字信號處理器（ dsp ）為cpu設計了測距裝置的中速采樣處理單元，該處理單元一方面可以實現線路電流電壓信號的同步數據採集，另一方面可以完成測距裝置的故障啟動和故障選線任務。 -
For the teaching the hardware pwm inverter is designed, including the choice of power module, filter tache, auxiliary power supply, brake unit and protection circuits. in addition data sampling system is contrived with encoder and current / voltage sensors. the control circuit with tms320f240 for the core is presented at last. the circuit includes memory extension, d / a converter digital i / o interface and the interface of the serial port. the way of space vector pwm realization is briefly introduced in this paper
接著，設計了pwm電壓型逆變器，其中包括主迴路功率模塊與濾波環節、控制電源、制動單元及保護電路設計。另外還利用霍爾元件與編碼器設計出數據採集系統。最後，給出了基於tms320f240的最小系統，包括存儲器擴展、串口擴展、數字i o介面以及空間矢量pwm的實現。 -
Fertilizers - sampling - recommendations for minimum mass of increment of a solid fertilizer to be taken to be representative of the total sampling unit
肥料.第2部分:取樣.第7節:代表全部樣品的固體肥料最小體積增量推薦標準 -
At the same time, using two - terminal voltages and currents sampled by the medium - speed sampling and processing unit synchronized by the pulse per second ( 1pps ) of gps, the fault locator can realize accurate double - ended steady - state location
同時，線路兩端的測距裝置利用gps的同步秒脈沖信號（ 1pps ）控制各自的中速采樣處理單元對線路的電壓、電流信號進行同步采樣，用這些同步採集到的數據還可以實現精確的雙端穩態法測距。 -
In this paper, the demand of the designation of the post treatment was carefully analyzed. the debugging of the hardware unit was completed, and, with microsoft visual c + + develop platform, the basic function of sampling software was implemented
本文對傳感器的后處理模塊設計需求進行了較為詳細的分析，完成了硬體部分的調試，並在微軟公司的visualc + +平臺上編寫完成了軟體部分主要功能。 -
The unit includes topics such as basic probability and random variables, data summarization and display, data quality, probability models for data including the normal, poisson, binomial and sampling distributions and their important properties
本課程課程包括基本概率和隨機變量、數據摘要和顯示、數據質量、數據概率模型（常規、非常規、二項式和樣本分類和它的重要屬性。
分享友人