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The Design and Research of Temperature Transmitter with Isolation Function

Author: JiangXiaoJun
Tutor: YuYiBiao
School: Suzhou University
Course: Electronics and Communication Engineering
Keywords: Thermocouple PIC MCU Compensation for cold end Isolation technology
CLC: TP212
Type: Master's thesis
Year: 2011
Downloads: 26
Quote: 0
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Abstract


China has entered the new development stage of modernization. Petroleum, chemical and other industries also gets swift and violent development. Along with the high safety demand in industrial production, the temperature detection and control becomes more and more important.This paper design a temperature transmitter with isolation which using MICROCHIP’s PIC18F2458-I/SO MCU as the core, can convert temperature signal to electrical signal accurately and carry out the temperature transmitter with dependable.The research content of this paper:(1) Hardware of transmitter and PCB design, include power module, amplify and convert module, output module and so on;(2) Software of transmitter, include LUTforTC function, transmitterTC function, ProcessIO function and so on software function to analyse and design idea;(3) Others technology problem and solution,research for the problem such as not alarm for less voltage,too thick of power transformer and interfere in A/D transition in the design.The actual application shows that this temperature transmitter can be accurately converted the temperature signals to electrical signals, the control of the temperature becomes simple,convenient,reliable.Which indicate the temperature transmitter is effective and applicable.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor
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