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Design and Implementation of a Automatic Biochemistry Analyzer

Author: LanJun
Tutor: XuDaZhuan
School: Nanjing University of Aeronautics and Astronautics
Course: Communication and Information System
Keywords: Biochemical analyzer DSP ADC Motor Expansibility Stability
CLC: TH83
Type: Master's thesis
Year: 2007
Downloads: 72
Quote: 4
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Abstract


Automatic biochemical analyzer is frequently used in clinical testing one of the analytical instruments , it is the determination of various biochemical markers through the analysis of blood or other body fluids . Hospital increasingly high degree of automation , making more and more demand advanced biochemical analyzer , which largely contributed to the development of a biochemical analyzer . In recent years, with the rapid development of electronic technology and computer technology , the structure and performance of the biochemical analyzer has a lot of improvements . The traditional biochemical analyzer are generally semi-automated , many operations need the help of hand- completed , the data is less stable , simple functions , the relative lack of storage and IO resources to keep up with the current needs of the rapid development of biochemical analyzer , a new biochemical analyzer system design imminent. This article , based on the specific needs of the biochemical analyzer , improved front-end optical sensing part , the completion of a multi-channel , high-precision ADC data acquisition subsystem design ; DSP-based design , using CPLD control logic ; completion of the interface and step-by-step into the motor control subsystem design ; design of signal detection and control system applications ; complete software and hardware installation, commissioning and testing of the circuit . The test results show that the system design of the program is reasonable and feasible . The system is stable, smooth . Performance indicators to meet the requirements to achieve the expected goals , good scalability , easy maintenance and debugging interface , gradually upgrading later to lay a good foundation . This article can also be to provide a reference for related research .

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