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photodiode n.【無線電】光電二極管。

A different approach , named “ two step growth approach “ has been applied to fabricate an 8x8 photodiode array in the first time . the micro - processing procedures of this photodiode array including standard photolithography , a number of metallisation , wet - chemical etching and sic2 deposition for insulation were developed in this study 首次采用“兩步法”制備出了新穎的8 8zns肖特基光電二極管陣列,詳細研究并確定了制備該器件的標準光刻、金屬沉積、濕化學腐蝕、 sio _ 2絕緣層沉積等一系列微電子處理工藝。

This paper introduces an instrument which is applied to measuring the characteristic parameters of light emitting diode ' s or some of other light sources “ . relevant theories are verified by this instrument . the principle of this instrument system can be described as follows : it takes photodiode as its detector , and a single - chip mcu named at89c51 is the core processor that manages data acquisition , field control , data communication , etc . pc analyses datas and apply algorithms to get the characteristic parameters of led , and then gives out the results of analyse in proper ways 該儀器系統采用光電二極管作為光電探測傳感器,以at89c51單片機為核心處理器,進行數據采集和現場控制,并通過與pc機發生通信,將數據發回pc機進行進一步的處理, pc可在此基礎上從算法級對二極管特征參數進行分析和運算,并進而以合適的數據表現方式給出分析結果。

A different approach , named “ two step growth approach “ has been applied to fabricate an 8x8 photodiode array in the first time . the micro - processing procedures of this photodiode array including standard photolithography , a number of metallisation , wet - chemical etching and sic2 deposition for insulation were developed in this study 首次采用“兩步法”制備出了新穎的8 8zns肖特基光電二極管陣列,詳細研究并確定了制備該器件的標準光刻、金屬沉積、濕化學腐蝕、 sio _ 2絕緣層沉積等一系列微電子處理工藝。

This paper introduces an instrument which is applied to measuring the characteristic parameters of light emitting diode ' s or some of other light sources “ . relevant theories are verified by this instrument . the principle of this instrument system can be described as follows : it takes photodiode as its detector , and a single - chip mcu named at89c51 is the core processor that manages data acquisition , field control , data communication , etc . pc analyses datas and apply algorithms to get the characteristic parameters of led , and then gives out the results of analyse in proper ways 該儀器系統采用光電二極管作為光電探測傳感器,以at89c51單片機為核心處理器,進行數據采集和現場控制,并通過與pc機發生通信,將數據發回pc機進行進一步的處理, pc可在此基礎上從算法級對二極管特征參數進行分析和運算,并進而以合適的數據表現方式給出分析結果。

photodisintegration

To meet the need of using photoelectric instrument to measure the photosensitive properties of the weak light of photodiode , because the current equipment is used in the daylight and the circuit is big and complicated , the instrument to measure properties of weak light of photodiode is developed , and the improved method is given 摘要為了進行光電二極管的弱光光敏特性的測量和標定,改進現有測試儀只能適應日光環境且電路板體積大、線路連接復雜的缺欠,開發了一種光電二級管弱光光敏特性測量儀,并提出進一步改進的方法。

Abstract : based on the electronic focus technology development of state - of - the - art , the paper suggested a complete apparatus s cheme ofauto - focus based on sspd ( self - scanned photodiode array ) and 8098 singl e chipprocessor , giving out a focus criterion algorithm based on image high freq uencystatistics . the function of auto - focus of both reflected and transparent o pticalmicroscope was realized . meanwhile some corresponding problems such as sta bility of lightsource , step motor driving etc . were also discussed , which greatly improved the accuracy andreliability of the system 文摘:在介紹與分析了國內外電子調焦系統的技術發展與現狀的基礎上,提出了一種基于sspd (自掃描光電二極管列陣)與8098單片微處理器自動調焦的整體技術方案,給出了基于圖像高頻成分統計的聚焦判識算法,在此基礎上實現了反射式與透射式光學顯微鏡的自動調焦,同時對系統的可靠性有關的其它相關問題如光源穩定性、步進電機驅動等問題也進行了討論。

For instance , based on the strong sales background and professional technology support , the company as agent sells the high - level products of usa , such as fiber optic components and photodiode models including fiber optic rotating adapter , laser , light source components and fiber optic combiner 例如:公司憑借自身雄厚的資金力量和專業技術支持,代理銷售美國光纖器件和光電模塊的高端產品,主要產品有:光纖旋轉接頭,激光器相關產品和服務,光器件和光纖終端產品等。

A different approach , named “ two step growth approach “ has been applied to fabricate an 8x8 photodiode array in the first time . the micro - processing procedures of this photodiode array including standard photolithography , a number of metallisation , wet - chemical etching and sic2 deposition for insulation were developed in this study 首次采用“兩步法”制備出了新穎的8 8zns肖特基光電二極管陣列,詳細研究并確定了制備該器件的標準光刻、金屬沉積、濕化學腐蝕、 sio _ 2絕緣層沉積等一系列微電子處理工藝。

Ultraviolet absorption detector , photodiode array detector ( dad ) , fluorescence detector , and electrochemical detector are optional detectors , response value of which is relative to not only quality of the object under test , but also structure of the compound ; refractive index detector and evaporative light - scattering detector are universal detector , responding to structure of all compounds ; evaporative light - scattering detector is quality - type detector , whose responding value only relates to quality of the object under test for compounds with similiar structures ; photodiode array detector ( dad ) can , at the same time , record absorption spectra of the object under test in a prescribed wave scope , consequently , it can be used in spectrum control and inspection of purity of chromatographic peaks of the object under test 紫外、二極管陣列、熒光、電化學檢測器為選擇性檢測器,其響應值不僅與待測物的質量有關,還與化合物的結構有關;示差折光檢測器和蒸發光散射檢測器為通用型檢測器,對所有的化合物結構均有響應;蒸發光散射檢測器屬質量型檢測器,對結構類似的化合物,其響應值幾乎僅與待測物的質量有關;二極管陣列檢測器可以同時記錄待測物在規定波長范圍內的吸收光譜,故可用于待測物的光譜管制和色譜峰純度的檢查。

First the author introduces the design of the flame monitoring system based on pic16f877 mcu in details . the detector , ( ecadata company ’ s production ) , si - photodiode , is used as the sensor . its photoelectric current output is proportional to input light ’ s energy 經方案比較,決定選用基于火焰的紅外光譜輻射特性的火焰檢測原理,研制開發火焰監測系統,檢測元件選擇ecadata公司生產的紅外雪崩型硅光電二極管,光電二極管在接受紅外輻射時,其產生光電流的大小與入射光能量成正比。

This paper introduces an instrument which is applied to measuring the characteristic parameters of light emitting diode ' s or some of other light sources “ . relevant theories are verified by this instrument . the principle of this instrument system can be described as follows : it takes photodiode as its detector , and a single - chip mcu named at89c51 is the core processor that manages data acquisition , field control , data communication , etc . pc analyses datas and apply algorithms to get the characteristic parameters of led , and then gives out the results of analyse in proper ways 該儀器系統采用光電二極管作為光電探測傳感器,以at89c51單片機為核心處理器,進行數據采集和現場控制,并通過與pc機發生通信,將數據發回pc機進行進一步的處理, pc可在此基礎上從算法級對二極管特征參數進行分析和運算,并進而以合適的數據表現方式給出分析結果。

This article studies on a novel method about detector calibration and monochromator calibration by using silicon pin photodiode . the detector and the monochromator of one spectrum measurement system had been calibrated using the method , and the spectrum distribution of one laser - produced plasmas ( lpp ) source with jet gas target was measured . the use of a specific combination of the silicon photodiode and multiplayer reflect films is the notable character in monochromator calibration 本文研究了一種利用光電二極管傳遞標準探測器標定普通探測器和單色儀系統的方法,實際標定了所用的探測器和單色儀系統,測得了噴氣靶激光等離子體光源的相對光譜分布,設計出絕對光譜分布的測量方法,并且利用labview的g語言及相應的數據采集卡等硬件設備構造出一套智能化、高效率的測量系統,完成了多層膜反射率測量工作。

The pin silicon photodiode made by alice - china group , which has a large area and high performances , is an important part of the photon spectrometer ( pros ) pbwo4 detector read - out system on the alice experiment . the pin diode has a sensitive area of 16x17 mm2 . its leakage current is lower than 5na at room temperature 本工作研制的pin硅光電二極管的靈敏區面積為16x17mm2 ,常溫漏電流小于5na ,紫光區量子效率約為83 % ,結電容為110 - 120pf ,以及由pin光電二極管與電荷靈敏前置放大器組成的讀出系統的噪聲水平在- 25下小于527個等效噪聲電荷,并經過了長期性能穩定性的考驗

Detector : the most commonly used detector is ultraviolet absorption detector ; other universal detectors are photodiode array detector ( dad ) , fluorescence detector , refractive index detector , evaporative light - scattering detector , electrochemical detector and mass spectrometry detector etc 檢測器最常用的檢測器為紫外吸收檢測器,其他常見的檢測器有二極管陣列檢測器( dad ) 、熒光檢測器、示差折光檢測器、蒸發光散射檢測器、電化學檢測器和質譜檢測器等。

The research and development of ultraviolet ( uv ) photodiode and liquid crystal light valve ( lclv ) were reviewed in this thesis . detailed descriptions were given of the structure and operation , material characteristics , preparation processing and applications of the two devices 全面介紹和回顧了當前紫外光電二極管和液晶光閥器件的研究與發展情況,對它們的工作原理,材料特性、制備工藝和應用背景作了詳細的分析討論。

High performance liquid chromatography differential display was applied to study the biochemical changes to the testified seaweed control and treated group by using hplc - pda system , which composed of two waters 515 hplc pumps , a photodiode 我們發現該化合物具有抑菌活性,其可能是藻類中第一個抗毒素化學成份。該物質是不是藻類自主合成產生的,及如何產生的,尚待進一步深入研究。

A technique , based on maximizing signal to noise ratio ( snr ) of the system , has been proposed . this method includes the determination of optimum wavelength of the laser and avalanche gain of the avalanche photodiode ( apd ) ( 3 )從分布式光纖溫度傳感系統的實際設計出發,選取了激光器最佳工作波長,對apd的最佳雪崩增益特性進行分析,得到了使系統信噪比最大的設計結果。

The electron multiplier detector is appropriate to do ordinary detect works for its high sensitive and semiconductor photodiode ( such as silicon diode ) is appropriate to act as transfer standard detect for its high stability 倍增器的靈敏度非常高,適合日常的測量工作;半導體型光電二極管(如si二極管)的穩定性好,適合作傳遞標準探測器。

After the si photodiode was calibrated by synchrotron radiation , we can get the quantum efficiency of 5 to 50 nm bandwidth which made a transfer standard to spectrum measurement system Si光二極管用同步輻射標定后,得到了5 50nm波段的量子效率曲線,函蓋實際實驗使用的8 30nm波段,使光譜測量系統的標定有了一個傳遞標準。