基于LabVIEW的小麦生物量检测系统

Detection System for Wheat Biomass Based on LabVIEW

摘要:

为了快速、无损地测量小麦生物量，根据小麦茎秆的力学特性，设计了一种基于LabVIEW的小麦生物量检测系统。以压力传感器为测量元件，以阿尔泰DAM—3056AH为高速采集模块，获取的小麦受推杆作用产生的回弹力信号由LabVIEW测量系统完成数据的实时采集、显示和保存。利用该检测系统在田间进行小麦生物量检测试验，以验证系统的性能。试验结果表明不同品种的小麦茎秆回弹力具有明显的差异，小麦茎秆回弹力与生物量（鲜质量）具有一定的相关性，采用线性回归法建立两者之间的回归模型，模型的决定系数R2达到0.7127。结果表明基于力学原理进行小麦生物量检测是可行的。

Abstract:

In order to detect the wheat biomass non-destructively and fast, a system based on LabVIEW was developed according to the mechanical property of wheat stalk. Real-time acquisition, display and storage of the data was finished by detection system based on LabVIEW, with mechanical sensor as measuring element and collecting resilience signal produced when the stalk was pushed by the rod with high-speed acquisition module DAM—3056AH of ART-TECH. The detection system was tested in the wheat field to examine its property. The results showed that the resilience of the wheat stalks between different varieties were clearly different. The resilience of the wheat stalk had close relationship with biomass (fresh weight), of which the R2 was achieved 0.7127. It was indicated that the detection of wheat biomass based on mechanics was feasible.