论文部分内容阅读
在使用数字计算机的火控系统中,光电方案是数模转换方案之一。光电编码器就是这种方案的主要装置。由于采取光电方案,它具有精度高、转动力矩小、转换速度快,所需要的电气线路简单,直观性强等优点。其主要缺点是可靠性相对接触式编码器较差。为了适应海上火控系统的需要,必须保证系统对它的精度要求和不断提高其可靠性。光电编码器是利用光敏元件的光电效应,即光敏元件对有光照和无光照的不同电性能的反映制成的转换装置。它由光源、光学系统、光栏、光电编码盘、狭缝、光电管等主要零部件组成。工作原理框图如图1所示。
In the use of digital computer fire control system, the photoelectric solution is one of digital-analog conversion. Photoelectric encoder is the main device of this program. As a result of optoelectronic solutions, it has the advantages of high precision, small torque, fast conversion speed, the required electrical circuit is simple, intuitive and so on. The main disadvantage is the relative reliability of the contact encoder is poor. In order to meet the needs of offshore fire control system, we must ensure that the system of its accuracy requirements and continuously improve its reliability. Photoelectric encoder is the use of photoelectric elements of the photoelectric effect, that is, photosensitive elements on the light and no light reflection of different electrical properties made of conversion device. It consists of light source, optical system, light bar, photoelectric encoder, slit, photoelectric tube and other major components. Operating principle block diagram shown in Figure 1.