光电的

Next, the following points are emphasized:(1) The design of photoelectric conversion preamplifier circuit. In order to improve the measurement accuracy of luminometer and ensure linear relationship of the photoelectric, operational amplifiers is designed as current-voltage converter form, on the one hand, it is available to zero-load effect; on the other hand, short-circuit current can be transformed into a voltage volume through the feedback resistor, it is equivalent to voltage drop flowed through a load resistor on the actual effect.

其次，本文重点做了以下工作：(1)光电转换前置放大电路的设计：为了提高照度计的测量准确度，确保光电间的线性关系，本设计把运算放大器接成电流电压变换器的形式，一方面可得到零负载效应；另一方面，短路电流通过反馈电阻变成电压量，实际效果相当于流过一个负载电阻形成的压降。

In the described system, in order to transmit the narrow-band analog signals or low speed digital signals at any time and under any climatic condition, sun-blind-region ultraviolet is used as information carrier, the modulated low voltage mercury-vapor lamp is used as emission device.

所描述的系统是以日盲区紫外光作为信息载体的，用被调制的低压汞蒸汽紫外放电灯作为发射器件，以日盲型滤光片和光电倍增管或日盲型紫外光电倍增管作为接收器件，以达到在任何时间和在任何气候下完成窄频带模拟或低速数字信号的传输。

Lead oxide is a traditional n-type semiconductor material, and it has many advantages, such as low growth temperature, simple preparation methods, high photoconductive and corrosion resistance properties.

氧化铅是一种传统的n型氧化物半导体材料，具有很多的优点，如生长温度低，制备方法简单，耐腐蚀性强，具有很好的光电特性和气敏特性等等，由于氧化铅的这些优点，氧化铅薄膜被广泛应用于透明导电薄膜、摄像、光电探测、气体敏感和耐腐蚀保护膜等领域。

The results of experiment indicate that the films have the characteristic as the persistent photoconductivity effect .

实验结果表明，所制备的多晶硅薄膜具有类稳恒光电导效应，而且薄膜的稳恒光电导特性依赖于薄膜的晶化率和晶粒尺寸，随晶化率的增加和晶粒尺寸的增大而增大。

Therefore, firstly, the techniques to determine the gapstate density and distribution of a-Si: H films: the photoconductivity spectrum technique and the phase-shift analysis of modulated photocurrent technique, have been described.

由于a-Si：H薄膜的光电性能在很大程度上取决于带隙定域态的密度及分布，所以本论文首先详细描述了a-Si：H薄膜的隙态密度及分布的测量技术—光电导谱技术和调制光电流相移分析技术。

Recently organic optoelectronic devices have attracted intensive interest among scientists and technologists because of their huge market and intriguing potential applications. Among these devices, organic photoconductor drum is the only one who has been put into market in large scale.

有机半导体光电器件由于其诱人的应用前景和巨大的市场正日益引起人们的广泛关注和研究兴趣，其中唯一已进行大规模产业化的有机半导体光电器件是有机光导鼓。

The detector,(ECADATA company's production), Si-photodiode , is used as the sensor. Its photoelectric current output is proportional to input light's energy. The gasoline flame radiation intensity and flicker frequency are both monitored to improve the system reliability.

经方案比较，决定选用基于火焰的红外光谱辐射特性的火焰检测原理，研制开发火焰监测系统，检测元件选择ECADATA公司生产的红外雪崩型硅光电二极管，光电二极管在接受红外辐射时，其产生光电流的大小与入射光能量成正比。

Based on the conclusion of experimental law, the photoelectric threshold condition is obtained for the semi-insulating GaAs photoconductive switch under the non-linear mode, pointing it out that, when the optic-energy triggers off the switch to meet the prerequisite that n_0L is greater than or equal to 10~(12)cm~(-2), the necessary condition is achieved for high field domain and meanwhile the threshold electric field serves to produce charge transmission effect within the material.

在总结实验规律的基础上，得到半绝缘GaAs光电导开关非线性模式的光电阈值条件，指出当光能触发使开关满足n0L≥10~(12)cm~(-2)时，达到形成高场畴的必要条件，阈值电场的作用是使材料体内产生电子转移效应。

In this paper one kind of electric charge keen amplifier is designed to matchthe detector adopted the scintillation coupling to the photo diode , which isdifferent form the traditional way of using scintillation coupling to themultiplier phototube .

论文针对采用闪烁体和光电二极管耦合的探测器而设计一种对电荷灵敏的放大器，这种探测器方案区别于传统的采用闪烁体与光电倍增管耦合的方式。

On the basis of ultraviolet standard detector in National Institute of Standard Technology, the absolute criterion was transferred to the responsivity unknown ultraviolet silicon detector, ultraviolet multiplier phototube and the ultraviolet solar blind photomultiplier.

以NIST(美国国家标准技术研究院)紫外标准探测器为基准，在200~400 nm波段对响应度未知的紫外硅探测器，紫外增强型光电倍增管和日盲型紫外光电倍增管进行了绝对标准的传递和光谱响应度、量子效率的标定，并在350 nm对紫外硅探测器的空间均匀性进行了标定。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。