Question

毕业设计帮忙英语翻译

The Application and Development of Photoelectric Sensor
Abstract. At present, the application of photoelectric sensors are more and more extensive, it also promotes the development of photoelectric sensors. Photoelectric sensor has simple structure and diversity. It has high precision, fast response, non-contact and other advantages. In this paper, we analyze the principle of photoelectric sensors, introduce the classification of photoelectric, and then highlight introduce the application of photoelectric sensors and the use of the principle of photoelectric sensors, analyze the current and future development of photoelectric sensors.
Keywords: Photoelectric sensor, the application of photoelectric sensor, the
development of photoelectric sensor.
1 Introduction
Photoelectric sensor is the sensor to use the electronic and optical element as the detection component. Photoelectric detection has high precision, fast response, noncontact advantages and so on. The sensor has simple structure, flexible and diverse forms. Therefore, the photoelectric sensor is widely used in the field of control and testing. It can be used to detect the non-electricity which can cause changes in the amount of light, such as light intensity, radiation temperature, gas composition. It can also use light transmission, occlusion, reflection, interference and others to measure a variety of physical quantities, such as object size, displacement, velocity, temperature, etc.. So it is a important and sensitive device which has a very wide application. When using the photoelectric sensor, it doesn't directly contact with the measured object and the beam quality is nearly zero, there is no friction in the measurement and almost no pressure on the measured object. Therefore, photoelectric sensors has obvious advantages than other sensors in many applications. However, its drawback is that optical devices and electronic devices are more expensive in some applications, and environmental conditions require higher on the measurement. In recent years, new optoelectronic devices are been emerging, particularly the birth of CCD image sensor, that creates a new field for the further application of photoelectric sensors.
2 The Principle of Photoelectric Sensor
Photoelectric sensors use photoelectric elements as sensor conversion devices. The principle of photoelectric sensor is to reflect the measured objects changes by light signal, and then convert the light signal into electrical signals by optoelectronic components. Usually the photoelectric sensor is composed by light source, optical access and optical components. The working process of photoelectric sensor is shown in Figure 1.
Fig. 1. The working process of photoelectric sensor
The role of optoelectronic devices is to convert the optical signal into electrical signal, which is based on the photoelectric effect. Photoelectric effect is a physical phenomenon that the light shines on certain substances and causes the material to change in the electrical characteristics. It can be divided into external and internal photoelectric effect.

Answer 1

光电传感器的应用与发展
摘要。目前，光电传感器的应用越来越广泛，同时也促进了光电传感器的发展。光电传感器具有简单的结构和多样性。它具有精度高，响应速度快，非接触等优点。在本文中，我们分析了光电传感器的工作原理，介绍了光电的分类，然后重点介绍了光电传感器的应用光电传感器的原理，分析了光电传感器的当前和未来的发展。
关键词：光电传感器，光电传感器的应用，该
光电传感器的发展。
1引言
光电传感器是传感器使用的电子和光学元件作为检测元件。光电检测精度高，响应速度快，非接触等优点。该传感器具有结构简单，灵活多样的形式。因此，光电传感器被广泛用于控制和测试领域。它可以用于检测非电能引起的光的量的变化，如光强度，辐射温度，气体组成。它也可以使用光传输，闭塞，反射，干涉和其他测量多种物理量，如对象的大小，位移，速度，温度，等。所以这是一个重要和敏感，具有很广阔的应用装置。利用光电传感器时，它不与被测物体和光束质量接近零的直接接触，有无摩擦的测量和对测量对象几乎没有压力。因此，光电传感器具有比其他明显的优势，在许多应用中的传感器。然而，其缺点是光学器件和电子器件中的一些应用更昂贵，及环境条件要求较高的测量。近年来，新的光电器件不断涌现，特别是CCD图像传感器的诞生，这造成了光电传感器的进一步应用的一个新领域。
2光电传感器的工作原理
光电传感器使用光电元件作为传感器的转换装置。光电传感器的原理是反映被测对象变化的光信号，并将光信号转换成电信号的光电元件。通常，光电传感器组成的光源，光纤接入和光学元件。光电传感器的工作流程如图1所示。
图1。光电传感器的工作过程
光电器件的作用是将光信号转换成电信号，它是基于光电效应。光电效应是一种物理现象，光照对某些物质，使材料在电气特性的变化。它可以分为外部和内部的光电效应。