发酵过程生物量软测量虚拟仪器系统的集成  

Integrated virtual instrument system for biomass estimation in fermentation processes

作　　者：郇黎明[1] 王建林[1] 于涛[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2006年第5期67-70,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家自然科学基金(20476007)

摘　　要：根据发酵过程生物量检测特点,基于虚拟仪器技术提出了一种全新的生物量在线检测系统集成方法,该系统采用PXI(PCI Extensions for Instrumentation)总线硬件平台,结合软测量算法,有效地实现了生物量在线估计。给出了该系统的集成原理和实现方法,及系统的硬件和软件设计。实验研究表明,集成的发酵过程生物量软测量虚拟仪器系统,能够充分利用软测量技术和虚拟仪器技术的各自优势,系统硬件配置灵活,实用性强,并能得到较高的生物量在线测量精度。The amount of biomass is one of the most important variables in the fermentation process, and directly influences the performance of automatic control systems in fermentation processes as well as in-system monitoring and on-line optimization. By using some co-variables, which can be measured on-line by sensors （hardware）, and process information to estimate the unmeasurable variables on-line, a so-called ＇ soft-sensor＇ has been developed and applied for on-line biomass estimation. Based on the virtual instrument technique, a new measuring system combining PXI（PCI Extensions for Instrumentation）bus hardware integrated with soft-sensor algorithms for on-line biomass estimation has been derived. The underlying principles and the use in practice of this system are described from the points of view of both hardware and software. The virtual instrument system derived is flexible in terms of hardware configuration, convenient for engineering applications and provides accurate values in on-line measurement.

关 键 词：生物量测量 软测量 虚拟仪器 发酵 

分 类 号：TQ92[轻工技术与工程—发酵工程] TP274[自动化与计算机技术—检测技术与自动化装置]