photoelectric current 中文意思是什麼
photoelectric current
解釋
光電流。- photoelectric : adj. 【物理學】光電的。
- current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
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Design of an extremely weak photoelectric current measuring circuit
極微弱光電流測量電路的設計 -
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，決定選用基於火焰的紅外光譜輻射特性的火焰檢測原理，研製開發火焰監測系統，檢測元件選擇ecadata公司生產的紅外雪崩型硅光電二極體，光電二極體在接受紅外輻射時，其產生光電流的大小與入射光能量成正比。 -
Current turntable control system usually adopts digital - analog control method. with the development of computer science and photoelectric encoder, numeralization of control system has become the trend for designing turntable control system
現有的轉臺控制系統一般採用數? ?模混合控制方式，隨著計算機技術與光電編碼器的飛速發展，控制系統的數字化已成為轉臺控制系統設計實現的發展趨勢。 -
When the system is working, the photoelectric coder checks the speed of doubly - fed vscf wind power generator ; according as the principle formula of vscf, the excitation current frequency of rotor is calculated to satisfy the aim of vscf control
系統工作時，用光電編碼器檢測出發電機的轉速，依據變速恆頻的原理公式計算出應饋入轉子勵磁電流的頻率，達到變速恆頻控制的目的。 -
The paper analyzes in detail the mechanics and optics theory. in the light of the characteristic of the intensity modulation optical fiber sensor, the reference - way is presented to compensate the error signals which are caused by the bias light, dark current of photoelectric detector, temperature drift of pre - amplifier
文中詳細分析了這種傳感器的力學和光學工作原理，並且針對所選用的強度調制型光纖傳感器的工作特點，提出採用參考通道補償由於背景光、光電探測器的暗電流、前置放大器溫漂等因素引起的誤差。 -
On the basis of describing the situation of current logging technology and considering the atrocious environment and the superiority of video imaging well - logging, the logging system consists of hardware and software sub - system in this paper. according to the objective condition of logging, the design of hardware has taken special treatments : high - temperature - proof protection with particular equipment for the whole circuit, video collection with ccd, temperature signal gathering by pt resistance and v / f transform, depth measurement through photoelectric encoder and jitter elimination circuit
在系統的硬體設計中，針對油田測井的客觀環境，進行了特殊處理：對整體測量電路採用特種裝備進行耐高溫保護；對井下的視頻信號採用ccd攝像頭進行採集；對井下溫度信號利用鉑電阻和v f變換實現採集；對深度信號採用光電碼盤及去抖電路進行精確測量。 -
In this paper, the relations between the photoelectric properties and the assembly, structure, constitute of the cells were studied, and a npc solar cell with higher incident photon - to - current conversion efficiency was obtained
本文通過npc電池的組裝、 uv - vis和xrd等表徵、光電性能測試等，研究npc電池的組裝、結構、組成與電池光電性能的關系。 -
The automation of the measurement of seedling morphological characteristics by photoelectric meters and computer vision is studied, and the automatic methods of the current grading systems are described respectively
進而對苗木形態參數的光電測量和計算機視覺測量等自動測量方法進行了分析和研究，闡述了現有的苗木自動分級系統所採用的分級理論和方法，並對其性能進行了概要的評述。 -
But the power electronic devices in pwm power amplifier are working in the on - off state, easily producing the over - voltage and over - current phenomena. under tht condition the power electronic devices are bearing higher dv / dt, di / dt and more energy losses, influencing itself capability and life - span. at the same time, the dv / dt, di / dt also cause the severe electromagnetism disturbances, such as the disturbances in the photoelectric theodolite will make the other systems working improperly
然而在pwm功率放大器的主迴路中電力電子器件工作在開關狀態，易產生過壓、過流現象，器件承受較高dv dt 、 di dt並產生較大的損耗，影響器件本身的性能和壽命，同時dv dt 、 di dt還會產生嚴重的電磁干擾，如在光學測量設備中，這種干擾將會影響其它系統正常運行。 -
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體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，並提出進一步改進的方法。
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