摘要根据工业现场要求，传感器的性能直接影响到检测结果的质量，因此对仪器仪表进行定期的校验是很有必要的。本文所设计的实验实训校验装置操作简单，并且还具有非常好的可靠性，易操作性和稳定性，不但可以用上位机设置测量点，自动造压造温，还可以手动压力缸的压力，为学生进行相关实验提供了可行的机会。51873

    本文设计主要包含三个组成部分：标准温度模块采用加热模块和半导体制冷模块分别对油槽进行升降温，采取高精度温度传感器实时监测温度；标准压力模块采用步进电机牵引活塞压力缸的方式产生标准压力，配合使用高精度压力传感器进行校验；控制和显示模块使用PLC和计算机相连接，用MCGS来设置相应测量点，收集相关数据。

毕业论文关键词：步进电动机  半导体制冷模块  活塞压力缸  PLC

Instrument calibration experiment and training system design

Abstract According to the requirements of the industrial field, the sensor's performance directly affects the quality of test results, so regular instrument calibration is necessary. Experimental Training calibration device designed in this paper is simple to operate, and also has very good reliability, operability and stability, not only can use the PC to set measurement points, automatically create pressure build warm, you can also manually pressure cylinder pressure for students to perform experiments provide a viable opportunity for learners and create good conditions.

This design consists of three main components: a standard stirrer and temperature module uses semiconductor cooling module respectively perform heating and cooling oil tank, take high-precision temperature sensor to monitor the real-time temperature; standard pressure module uses a stepper motor traction piston cylinder way to generate standard pressure, with the use of high-precision pressure sensor calibration; use of PLC control and display module and the computer is connected with the MCGS to set the appropriate measurement points, collect relevant data.

Keywords: Stepper motors  Semiconductor refrigeration module  Piston cylinder  Programmable Logic Controller

 目  录

摘要 Ⅰ 

Abstract Ⅱ

目录 Ⅲ 

图清单 Ⅳ 

1  绪论 1

  1.1  引言 1

  1.2  检定系统的概述 1

  1.3  国内外发展概况与趋势 2

  1.4  研究课题的目标和意义 2

  1.5  本章小结 3

2  仪器仪表校验实验实训装置系统总体方案设计 4

  2.1  仪器仪表校验实验实训装置系统总体结构 4

  2.2  仪器仪表校验实验实训装置总体目标和技术指标 5

  2.3  本章小结 5

3  温度校验子系统 6

  3.1  温度校验系统概述 6

  3.2  半导体制冷模块 8

  3.3  加热模块 10

  3.4  本章小结 10

4  压力校验子系统