5.传感器的发展趋势
传感、通信、计算机技术构成现代信息的三大基础，80年代是个人计算机，90年代是计算机网络，预计21世纪第一个10年热点很可能是传感、执行与检测。传感器的作用主要是获取信息、是信息技术的源头。在信息时代里，随着各种系统的自动化程度和复杂性的增加。需要获取的信息量越来越多，不仅对传感器的精度、可靠性和响应要求越来越高，还要求传感器有标准输出形式以便和系统联接。显然传统的传感器因其功能差，体积大很难满足要求。发展高性能的、以硅材料为主的各种先进传感器已成为必然。如谐振式、电容式、光电式和场效应化学传感器等。尽管它们的敏感机理不同，但其总的共同特点是向微型化、智能化方向发展。近年来，微电子、微机械、新材料、新工艺的发展与计算机、通信技术的结合创造出新一代的传感器与检测系统。
传感器的发展方向：
process points are in Freelance
800F system’s public database for management.
● List of all variables (input, output, internal variables)
● Process point list (function block)
●Graphics
●Program
Because the database is system-wide. The data only needs to enter a
times, to avoid possible errors caused by multiple configurations.
Project database files can be easily archived or backed up.
When programmed by the user, a list of variables and labels is automatically created.
Moreover, both variables and process points can be opened and closed directly in FBD or IL
Revise.
List other features include:
Project-wide modification of names, comments, data or module types
●Search and display based on specific criteria
● Cross reference can be used in systems that use a large number of variables or process points
Programs and drawings to quickly find the desired variable or process point within the scope
noodle.
ABB is the world’s largest in
