摘要尘埃粒子计数器是测定洁净空气中离散粒子的粒径及其粒子浓度，以确定洁净室和洁净环境的洁净度等级的仪器。而激光尘埃粒子计数器传感器是激光尘埃粒子计数器的核心部件，它的性能的好坏在很大程度上会影响计数器整体的性能好坏。而在激光尘埃粒子计数器传感器的组装过程中，光轴调节是一个很重要的步骤，光轴调节的准确性会大大影响传感器的性能，而光轴调节的效率又会影响到整个传感器组装的效率，现在使用的光轴调节的辅助装置很难满足这两方面的要求，所以设计出一种用于激光尘埃粒子计数器传感器光轴调节的辅助装置，通过该装置有效提高传感器光轴调节的效率，提高光轴调节的一致性，对传感器组装工作是很重要的。本论文沿用传感器光轴调节基本方法，即利用激光器光斑的对称性，在激光出光孔位置安插不透明细十字叉，通过CCD观察出光孔后激光光斑图样，并依此调节激光器位置来调节光轴。最后设计出了一种用于激光尘埃粒子计数器传感器光轴调节的辅助装置，它能有效提高光轴调节的一致性和效率。67130

毕业论文关键词  尘埃粒子计数器  激光尘埃粒子计数器传感器  光轴调节   辅助装置

毕业设计说明书（论文）外文摘要

Title    the design for the optical axis adjustment  device of laser particle counter sensor                                           

Abstract

The dust particle counter is used to get the measurement of the discrete particle size and particle concentration in clean air in order to determine the clean room and clean environment cleanliness level of the instrument. The laser particle counter sensor is a core component of the laser particle counter, its performance is good or bad largely affects the performance of the overall quality of the counter. During assembly of the laser particle counter sensor, the optical axis adjustment process is a very important step. The accuracy of the optical axis adjustment will greatly affect the performance of the sensor,and the efficiency of the optical axis adjustment would affect the efficiency of the entire sensor assembly too.So it’s important to design an auxiliary device for laser particle counter sensor optical axis adjustment which can effectively improve the efficiency of the sensor optical axis adjustment and improve the consistency of the optical axis adjustment. This paper presents a design for the auxiliary device used for laser particle counter sensor optical axis adjustment.

Keywords  Particle Counter   laser particle counter sensor   adjustment of optical axis    assistive devices

目   次

1 引言 1

1.1  激光尘埃粒子计数器介绍  1

1.2  本设计所针对的激光尘埃粒子计数器传感器介绍介绍 … 1

1.3  调节光轴的必要性和重要性… 2

1.4 本文的主要工作 2

2  本设计光轴调节的基本原理  3

3  设计所用软件介绍 4

4  本设计详细说明  5

4.1  激光尘埃粒子计数器传感器及CCD摄像头照片 5

4.2  本设计各零件详细介绍说明 7

4.2.1  传感器与CCD摄像头模型 7

4.2.2  整个激光尘埃粒子计数器传感器光轴调节辅助调节装置示意图 8

4.2.3  三种配合  9

4.2.4  零件○1传感器固定座说明  9

4.2.5  零件○2光筒说明  10

4.2.6  零件○3光筒支架说明 11