modem optical 中文意思是什麼
modem optical
解釋
光學數據機-
Using ordinary modem, the data transmission speed under the current existing twisted pair access copper telephone lines network for voice communication is limited to 56kb s, which is totally inadequate for high volume data transmission. even using the adsl technology, the maximum transmission speed can only be increased up 6mb s. to surmount this problem by providing optical network access directly to all users ? home and offices not only involve very high cost but also extremely time consuming engineering work
現存原來用作話音通訊的雙絞銅線電話固網，在利用現時普通的modem情況下，數據傳送速度僅為56kb s即使利用較先進的adsl技術，其最高速率亦只有6mb s ，不足以應付高容量資訊的傳輸然而要做到光纖入戶，不但成本高昂，而且工程所需之時間漫長。 -
Using ordinary modem, the data transmission speed under the current existing twisted pair access copper telephone lines network for voice communication is limited to 56kbs, which is totally inadequate for high volume data transmission. even using the adsl technology, the maximum transmission speed can only be increased up 6mbs. to surmount this problem by providing optical network access directly to all users ? home and offices not only involve very high cost but also extremely time consuming engineering work
現存原來用作話音通訊的雙絞銅線電話固網，在利用現時普通的modem情況下，數據傳送速度僅為56kbs ；即使利用較先進的adsl技術，其最高速率亦只有6mbs ，不足以應付高容量資訊的傳輸；然而要做到光纖入戶，不但成本高昂，而且工程所需之時間漫長。 -
The article consists of three parts mainly : the first part has described the method of detecting the faint signal, mainly include : detection technique of faint signal, principle of the optical fibre sensor, the little lose effects when optic fibre little curved, and the research of the stress sensor of optical fibre. the second part emphasizes on the design of the intelligent photoelectricity system, mainly tells the design of the circuit to process the faint photoelectricity signal, details the software and hardware design of intelligent photoelectricity system made of single chip microcontroller, led, man - machine interface, communication interface, etc. the third part is the network communication of the detection system, details the technology of single chip microcontroller how to group the network, and the communication between single the chip microcontroller system and the modem, and how to realize the data between the field and computer central exchanged through the existing public phone network
文章主要分為三部分：第一部分論述了微小信號的檢測方法，主要包括微小信號的檢測技術、光纖傳感器的原理、光纖微彎損耗效應及光纖應力傳感器的研製；第二部分重點講述了智能光電檢測系統的研製，主要講述了微弱光電信號調理電路的設計及由前（后）向通道、單片機、 led 、人機介面、通信介面等組成的智能光電系統的軟硬體的具體設計；第三部分為檢測系統的網路通信部分，具體闡述了單片機系統間的組網技術、單片機和modem之間的通信及通過現有的公用電話網路實現遠程監控的技術，實現現場檢測系統與橋梁測控中心的數據交換。 -
It is well known, the multi - media can deal with tremendous data, in former web condition, confined to the velocity of the connected modem equipment, real - time transmission of the connected media is usually impossible, though it is possible to make the connection come into reality, the loss of the data is very serious, the transmission of the picture may pause or stop obviously and can not reach the ideal effect without practical operation, however, in recent years with the development of the new development in connected web technology, such as xdsl and the mature popularization of the broad band technology like optical fiber
眾所周知，多媒體的數據吞吐量往往十分巨大，在以前的網路狀態下，受制於modem等網路接入設備的速率條件，連續媒體的實時傳輸往往是不可能做到的，即使能夠勉強連接成功，其數據包的丟失現象也是十分嚴重的，圖像的傳輸有明顯的停頓甚至停止的現象，達不到理想的效果，所以並不具有實際的可行性。但隨著近年來網路接入新技術的發展，如xdsl 、光纖等寬帶技術的成熟和廣泛應用。 -
Polarizers, one of the most important optical modulators, are widely used in modem laser action technique, optical information processing, image - forming system, etc. the function of polarizers is to transform non - polarized light into polarized one, which is the preparation for further modulation
光學調制器件中的重要器件?偏光器，在激光應用技術、光信息處理，以及成像系統中有著廣泛的應用。偏光器件的作用是將非線偏振光變為線偏振光，為光信息的進一步調製做準備。 -
In recent several years, our lab ( state key lab of modem optical instrumentation, image engineering group ) have spent quite a few on this subject and have got some important results, but the most of the research works are focused on auto - focus theory, algorithms
本實驗室在過去的幾年中在這方面做了很多工作，並取得了不少成果，但主要集中在自動對焦的理論，演算法方面的研究。 -
Optical fiber to the desk is the most suitable media of modem information transmission
光纖到桌面，提供現代資訊傳輸最理想的傳播媒質，領先國際水準。 -
The result shows that the designed optical fiber strain sensor is of highly precision and highly sensibility under careful design and reasonable facture. finally, the problems in the design of optical fiber strain sensor modem and the further research direction and measure are pointed out in this paper
實驗結果表明，由於精心設計、合理的工藝製作使所設計的光纖傳感器具有良好的線性應變特性，並且具有靈敏度大、穩定性高、抗干擾能力強等特點，可實現產品化，有著廣泛的應用前景。
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