啤酒发酵温度的差动中值定标方法  

Method of Differential Median Calibration for Temperature of Beer Fermentation

作　　者：杨青川[1] 姜卫 秦虹[1] 孙波[1] 

机构地区：[1]沈阳理工大学信息科学与工程学院,辽宁沈阳110159 [2]大连大显房屋开发有限公司,辽宁大连116000

出　　处：《仪表技术与传感器》2010年第12期92-94,100,共4页Instrument Technique and Sensor

摘　　要：在嵌入式集散控制系统中,需要检测的模拟量绝大部分是非线性的。依据啤酒发酵中对温度的控制特点,提出了铂电阻四线补偿式恒流源测温的差动中值定标方法。差动中值定标方法计算工作量小,检测速度快,能保证铂电阻温度检测在小范围内准确,满足了低成本、高精度的测温需求。该方法为小范围非线性模拟量检测问题提供了可行的解决方案。In embedded-distribution control system,the analogue signal under test is usually non-linear.Differential median calibration method based on four-wire platinum resistance temperature compensated constant current source was proposed in accordance with the characteristics of temperature control in the course of beer fermentation.This method can guarantee accuracy of temperature detection in a small temperature range,has an edge small amount of work,rapid detection,low-cost and high-precision.The method provide a viable solution for the detection of small-scale non-linear analog.

关 键 词：嵌入式系统 集散控制系统 非线性模拟量检测 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]