摘要本次设计为智能液压测试仪设计，智能液压测试仪是一种可以对液压系统流 量、温度、压力进行检测的仪器，由于在机械自动化设备中，液压系统占据着重 要的位置，所以液压系统的可靠性在工程作业中的要求越来越高，而液压系统测 试仪会为工程检测提供可靠的液压参数，本次设计主要对于测试仪的概况、结构 组成和单片机系统的开发流程进行了介绍。首先进行硬件系统的设计，测试仪硬 件系统设计包括电源模块、多路信号采集和调理模块、数显模块、USB 通信模 块、CPU 主控模块。其次，对智能液压测试仪的底层软件系统开发进行了简单 的介绍，将需要实现的功能用软件设计系统表现出来，能够完成对大多数液压系 统的压力、流量、温度等的检测，可以在液压系统的优化设计和故障诊断等方面 提供可靠的依据。73839

毕业论文关键词：液压系统； 单片机； 动态检测； 数据采集

Intelligent hydraulic test instrument Abstract

The design for the intelligent hydraulic tester design, intelligent hydraulic tester is a kind of instrument can detect the hydraulic system flow, temperature, pressure,, due to the mechanical automation equipment, hydraulic system occupies a important position, so the reliability of the hydraulic system in engineering operations have become increasingly demanding, and test instrument for hydraulic system  will provide reliable hydraulic parameter for engineering inspection,  this  design mainly for testing general situation, structure composition and SCM system development process are introduced. Firstly, the hardware system is designed, and the hardware system is designed, including power module, multi-channel signal acquisition and conditioning module, digital display module, USB communication module, CPU master module. Secondly, on the intelligent hydraulic pressure tester of the underlying software system development were briefly introduced, will need to implement the function with software system design, can complete on most of the hydraulic system pressure, flow rate, temperature detection, can provide reliable basis in the hydraulic system of optimization design and fault diagnosis.

Key Words: Hydraulic system;    SCM;    Dynamic detection;    Data acquisition

目录

摘要Ⅰ

Abstract-Ⅱ

目录Ⅲ

1  绪论 1

1.1 引言 1

1.2  国内外智能液压测试仪发展现状 1

1.3  本课题研究的目的与意义 3

1.4  本课题主要研究内容 4

1.5  本章小结 4

2 智能液压测试仪整体设计 5

2.1 智能液压测试仪整体设计思路 5

2.2 智能液压测试仪功能需求 5

2.3 智能液压测试仪各模块功能简述 6

3  智能液压测试仪的硬件电路设计 7

3.1 硬件电路概述 7

3.2 单片机的选择 7

3.3 电源模块电路 13

3.4 多路信号采集模块电路 14

3.5 数显模块电路 17

3.6 USB 通信模块电路