查询词典 photoelectric

The main realization method of this design theme is carried out the conversion of photic signal to analogue signal with photoelectric conversion circuit.

该设计题目的实现方法是通过光电转换电路实现光信号与模拟电信号的转换。

The common troubleshooting of the photoelectric analytical balance was introduced.

介绍光电分析天平一般故障的现象、产生的原因及其排除方法。

The system adopted active tracking,namely calculate the input angle of the tracking device in advance,the angle is correspondent to the sun position some moment.Photoelectric sensors react the sunlight that putting on different position of the platform, feedback electrical signal.Then single-chip applys the subprogram and sends out pulse to step motors according to the signals,can control the rotate angle and direction of the step motor. The mechanism has realized the automatic track to the sun, so that the trackers top flat board can be always vertical to the sunlight and arrive the furthest receiving energy.

系统采用主动式跟踪，即预先计算好对应于某时刻太阳位置的跟踪机构的输入角度，通过跟踪器上平台不同位置上摆放的光电传感器感受该太阳位置的光照，反馈回电信号，单片机根据该信号调用子程序发出脉冲对步进电动机的转动角度和方向进行控制，实现了机构对太阳的自动跟踪，使跟踪装置的上平台始终处于垂直于光照方向，达到了能量最大限度的接收。

The results show that angular motion of the carrier would bring serious influence to photoelectric imaging system performance.

载体运动将会给光电成像系统，特别是积分时间长的系统的性能带来严重的影响

Use of photon counts in the photoelectric astrolabe.

光子计数技术用于Ⅱ型光电等高仪观测系统。

An analysis of the observations of these two instruments reveals that the accuracy of the Photoelectric Astrolabe Type Ⅱ is higher than the Danjon Astrolabe in all respects.

上海天文台用国产的Ⅱ型光电等高仪和丹容等高仪进行了一年平行试验观测，比较了两种仪器的观测精度，证明Ⅱ型光电等高仪的各项精度指标均优于丹容等高仪。

An attempt to synthesize astrolabe catalogues is made in this paper by means of the residuals of the observations carried out with two photoelectric astrolabes respectively belonging to Yunnan and Beijing Observatories, i.

云南天文台台刊，，编辑部邮箱 1982年 02期 FK4星表；赤纬；系统差；光电等高仪；等高圈；本文利用云南天文台和北京天文台的Ⅱ型光电等高仪观测的残差，进行了一种综合等高仪星表处理方法的尝试。

In 1887 H. Hertz identified the photoelectric effect. In 1907 De Forest patented the audion, or triode.

1887年，H。赫兹发现了光电效应。1907年，德福来斯特发明的三极真空管获得专利。

After validated by experiments, those two methods were effective in improving the resolution and precision of photoelectric Autocollimator.

通过实验验证，上述两种方法在提高自准直仪分辨率及精度方面是有效可行的。

How to improve the resolution and precision of photoelectric Autocollimator by Moiré fringe.

利用光栅叠加所形成的莫尔条纹在光学上提高光电自准直仪的分辨率和精度。

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。