摘要经皮黄疸检测仪是一种通过光电检测手段，可准确检测婴幼儿经皮胆红素浓度的医疗器件，经皮黄疸检测仪的外部结构简单，造型小巧轻便，方便医护人员使用和临床检测，并且对新生儿不产生任何痛苦和伤害，在目前的检测黄疸的方法中被当作首选，广泛应用于各类医院、门诊和家庭中。本课题首先对经皮检测胆红素浓度的原理作出详细探究，建立了合适的数学模型，并在此原理上设计了经皮黄疸检测仪的总体方案，总体方案包括经皮黄疸检测仪的硬件设计、内部电路设计、单片机系统设计和软件设计，并且本文也对经皮黄疸仪的外观做出简单设计，本文中所采用的光电检测技术、信息处理技术和结构设计都较为完善，是对大学四年来所学知识的一次综合实用。42761

关键词： 黄疸  经皮  光电检测

毕业论文设计说明书外文摘要

Title    The Design of the Transcutaneous Jaundice Detector                     

Abstract

Percutaneous jaundice detector is a photodetector by means of, can accurately detect the concentration of bilirubin in infants with percutaneous medical devices, simple structure by external transcutaneous jaundice detector, compact shape lightweight, easy to use health care and clinical testing, and the newborn does not have any pain and suffering, in the current method of detection of jaundice is treated as the first choice, widely used in all types of hospitals, clinics and homes. The first topic on the percutaneous bilirubin concentrations principle make a detailed inquiry, the establishment of appropriate mathematical models, and on this principle the overall design scheme percutaneous jaundice detector, the overall program including percutaneous jaundice detector hardware design, the internal circuit design, MCU system design and software design, and the paper also percutaneous jaundice meter to make the appearance of a simple design, photoelectric detection technology employed herein, the information processing technology and design are more perfect, it is a university four years, the knowledge of a comprehensive and practical.

Keywords   Percutaneous jaundice  Photodetector

目录

1  绪论 1

1.1背景和意义 1

1.2经皮黄疸检测仪的国内外研究现状 1

1.3 经皮黄疸检测仪目前存在的问题 2

2 经皮黄疸检测仪的原理和技术方法 3

2.1 黄疸检测的基本原理 3

2.2 基于双波长的黄疸检测的原理 5

3 黄疸检测仪总体设计 8

3.1经皮黄疸检测仪功能与技术参数的确认 8

3.2基于双波长检测原理的经皮黄疸检测仪的总体方案设计 8

4 经皮黄疸检测仪的硬件设计 11

4.1 光源的选择与设计 11

4.2 同轴光纤探头的选择 13

4.3 光学器件的选择 17

4.4前置放大电路 22

4.5低通滤波电路 28

4.6真有效值转换与电源电路 30

5 单片机系统 32

5.1 8051单片机 32

5.2 A/D转换电路