Design, Fabrication and Evaluation of an Integrated CO2-Odour Sensor for Grain Quality Monitoring

用于谷物质量监测的集成二氧化碳气味传感器的设计、制造和评估

• 批准号: 350317-2007
• 负责人: Jayas, Digvir
• 金额: $ 14.28万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=361563
• 关键词: Design; Fabrication; Evaluation; Integrated; CO2

Canada's grain handling system has evolved with the need to satisfy overseas customers in an expedient and efficient manner. To maintain Canada's reputation of exporting high-quality grain, research on methodologies to preserve the harvested grain is needed. Stored-grain bulks are ecological systems where communities of insects, mites, and micro flora interact with grain to cause spoilage. Carbon dioxide and odour volatiles from biological pests increase during spoilage can be used as a reliable indicator of incipient grain spoilage.Measuring the air quality inside a grain bin has not been done because it is cumbersome and requires access to expensive gas analyzers. Nano and micro fabrication technologies offer the prospect of measuring carbon dioxide and odour volatiles using smart multicapable micro sensor.The overall objective of this research is to develop a scientifically valid and commercially feasible integrated carbon dioxide-odour sensor to detect deterioration of cereal grains during storage in large bulks. The integrated sensor will be developed using polymer sensing approach and evaluated in laboratory and full-size bins. The developed micro sensor will give quick results and higher accuracy than the current methods. The advantage of this smart sensor is that, the monitoring is rapid and can be performed on-line and in situ. The sensor will be cheaper than the current technology with great functionality. These sensors could be connected to existing temperature cables to continuously monitor the air quality with unprecedented precision. The sensor will revolutionize the management of grain to preserve its quality and thus quality of processed foods made from the grain.

加拿大的谷物处理系统随着以方便和有效的方式满足海外客户的需求而发展。为了保持加拿大出口高质量谷物的声誉，需要研究保存收获谷物的方法。储粮是一种生态系统，其中昆虫、螨类和微植物群与谷物相互作用，导致谷物腐败。在谷物腐败过程中，二氧化碳和生物害虫散发的气味挥发物会增加，这可以作为谷物腐败初期的可靠指标。测量粮仓内的空气质量还没有完成，因为它很麻烦，需要使用昂贵的气体分析仪。本研究的总体目标是开发一种科学上有效的、商业上可行的集成式二氧化碳-气味传感器，用于检测谷物在大批量储存过程中的变质。集成传感器将使用聚合物传感方法开发，并在实验室和全尺寸箱中进行评估。所开发的微传感器将给出比现有方法更快的结果和更高的精度。这种智能传感器的优点是，监测是快速的，可以在线和原位进行。该传感器将比目前的技术更便宜，功能更强大。这些传感器可以连接到现有的温度电缆，以前所未有的精度持续监测空气质量。该传感器将彻底改变谷物的管理，以保持其质量，从而保持由谷物制成的加工食品的质量。