便携式鱼粉品质检测装置的设计与参数优化  

Design and operating parameter optimization of portable detection device for fish meal quality

作　　者：李培[1] 牛智有[1,2] 谭鹤群 刘鸣[1] 张伟健 Li Pei;Niu Zhiyou;Tan Henqun;Liu Ming;Zhang Weijian(College of Engineering,Huazhong Agricultural University,Wuhan 430070,China;Key Laboratory of AgriculturalEquipment in Mid-lower Yangtze River, Ministry of Agriculture, Wuhan 430070,China)

机构地区：[1]华中农业大学工学院,武汉430070 [2]农业部长江中下游农业装备重点实验室,武汉430070

出　　处：《农业工程学报》2019年第8期308-315,共8页Transactions of the Chinese Society of Agricultural Engineering

基　　金：中央高校基本科研业务费专项资金资助项目(2662018PY081)

摘　　要：为了快速检测鱼粉的品质,该文设计了一种便携式的鱼粉品质检测装置,该装置以微处理器树莓派为核心,主要由气路气体采集、电路数据获取和软件等部分组成,其中气路气体采集主要是采集零气和样品气体,电路数据获取主要是将传感器的电信号进行采集、放大和AD(analog-digital)转换,软件部分则设计了传感器数据采集和清洗等界面,并实时显示采集到的数据。为了研究该装置的检测性能,该文采用响应面法,选取了对检测结果影响较大的气体流量、采样时间、清洗时间作为试验因素,以离散比为试验指标,利用Design-Expert软件对该装置的参数进行优化,得到最优的参数组合,并在最优参数下,验证了检测装置对鱼粉品质检测的可行性和检测性能。试验结果表明:气体流量、采样时间、清洗时间均对离散比影响显著,且显著性影响程度为清洗时间>采样时间>气体流量,综合考虑各因素,得到最佳参数组合为气体流量2.2 L/min,采样时间39 s,清洗时间77 s,此时离散比实测值为0.579 9。在最优参数下,对不同储藏时间等级的鱼粉样品进行检测,得到不同储藏时间等级逐步判别的正确度为89.4%,可以实现对不同品质的鱼粉进行检测,可为鱼粉品质检测装置的研究提供相应参考和技术支撑。Fish meal is rich in protein and fat and is the main animal-derived feed material. In the process of transportation and storage, the fish meal can be easily to deteriorate, resulting in the reduction of its nutritional components. This is not only endangers the normal reproduction and health of animals, but also poses certain potential safety hazards to the safety of animal-derived food and human health. It is necessary to carry out an effective detection for quality of animal-derived feed. In recent years, bionic olfaction technology has developed rapidly, it can quickly detect the quality of products, compared with near infrared spectroscopy and traditional physical and chemical index detection methods, it is faster and more accurate, but it is rarely used in the quality detection of fish meal. Therefore, in order to solve the above problems, a portable detection device on quality of fish meal has been developed in this paper. The hardware part of the device is mainly composed of a gas acquisition and transmission module, a control processing storage module, a data acquisition module, and a sensor array module, which the gas acquisition and transmission module includes a sample supplement gas cylinder, a sample gas generation chamber, an activated carbon purification bottle, two two-position two-way electromagnetic valves, a micro air pump, a gas flowmeter, a gas sampling chamber, and a one-way valve. In the software part, the strawberry pie is the core, qt creator graphical programming software across platforms was selected, and the real-time data acquisition display and storage part was mainly designed. The key component was the 10-bit ARPI600 data acquisition module. The device could basically realize the quality detection of fish meal, and the detection result was relatively accurate. In order to obtain the detection performance of the device, the test parameters of the device needed to be optimized. First, fresh fish meal was placed in a 35 ℃ thermostatic artificial climate box to make it decay gradually

关 键 词：品质控制 无损检测 参数优化 响应面 鱼粉 

分 类 号：S24[农业科学—农业电气化与自动化]