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1、基于 MS5561 的液位传感器设计摘要基于单片机和 C 语言液位传感器的设计，可用于石油化工、冶金、电力、制药、供排水、环保 。利用液位传感器是一种有效的接触式测量方法,可广泛应用于各种需要测量的场合。具有高精度，低功耗，经温度补偿和数字校正，无需外部元件，防潮保护，压力和温度测量。本液位传感器采用 MS5561 装置，包括一个精密的压阻式压力传感器和一个 51 单片机。运用温度传感器进行温度补偿,提高了测量的精度。在硬件电路的基础上,用 C 语言编制了具体实现各个功能的程序。在电压的支持下，提供一个压力和温度的 16 位数据。它采用三相串行接口进行交流。精巧的结构，简单的调校和灵活的安装方
2、式为用户轻松地使用提供了方便 。本文介绍了利用传感器与单片机测量温度和压力的原理。通过传感器向单片机输入数据，经过单片机处理，从而得到温度和压力值。关键词：C 语言;MS5561;压阻式压力传感器；单片机Based on the design of MS5561 level sensorABSTRACTBased on SCM and C language level sensor design, can be used for petroleum chemical industry, metallurgy, electric power, pharmacy, water supply and
3、 drainage, environmental protection. Use level sensor is a kind of effective contact measurement methods, and can be widely used in various measurements of occasion. With high precision, low power consumption, the temperature compensation and digital correction, without external components, moisture
4、proof protect, pressure and temperature measurement. This level sensor using MS5561 device, including a precision piezoresistive pressure sensor and a 51 SCM. Using temperature sensors for temperature compensation and improve the measuring precision. In the hardware circuit, and on the basis of C la
5、nguage of the concrete realization each functional program. In voltage support, provide a pressure and temperature of the 16 bits of data. It adopts three-phase serial interface communication. Exquisite structure, simple adjustment and flexible installation way for users to easily use provides conve
6、nient. This paper describes the use of sensor and single-chip microcomputer measure temperature and pressure principle. Through the sensor chip to enter the data and single chip, and get a temperature and pressure.Key words: C; MS5561; Piezoresistive pressure sensor; Single-chip microcomputer目录摘要.IA
7、BSTRACT.II1 绪论.11.1 背景.11.2 液位测量技术概况.11.3 各类传感器的介绍.11.3.1 接触式的液位测量.11.3.2 非接触式液位测量.41.3.3 国内外液位传感器的现状分析.61.3.4 研究本课题的意义.71.4 本课题的主要研究内容.82 基于 MS5561 的液位传感器的硬件设计 .92.1 系统设计.92.1.1 CPU 介绍.92.1.2 CPU 的外围器件简介.92.2 液位传感器的原理.102.2.1 MS5561 的管脚.102.2.2 485 电路设计.132.2.3 程序下载接口设计.142.2.4 电源电路的设计.142.2.5 CPU 的设计.152.2.6 液位传感器设计图.152.2.7 实物电路设计图.163 基于 MS5561 的传感器的软件设计.173.1 基于 MS5561 的传感器设计 .173.1.1 数据传送.173.1.2 工厂校准.173.1.3 压力和温度测量.
