靠近主动光学传感用于使用CropCircle ACS-470进行研究的操作改进,用于测量规范差异植被指数 (NDVI) 的影响
Matthew M Conley1, Alison L Thompson2, Reagan Hejl1
1U.S. Arid-Land Agricultural Research Center, U.S. Department of Agriculture, Agricultural Research Service, Maricopa, AZ 85138, USA.
Sensors (Basel, Switzerland)
|June 10, 2023
概括
温度会影响高通量植物表型化 (HTPP) 中使用的活跃放射测量反射传感器. 这项研究描述了温度变化下的传感器性能,发现平均每1°C变化0.24%,并建议稳定和正常化以获得准确性.
科学领域:
- 农业科学 农业科学
- 植物生物学 植物生物学
- 传感器技术 传感器技术
背景情况:
- 活性放射性反射对于在野外环境下进行植物特征分析至关重要.
- 二极管传感器对温度敏感,影响光导电阻和测量精度.
- 高通量植物表型化 (HTPP) 系统面临由于极端环境温度的性能挑战.
研究的目的:
- 描述HTPP可定制的近距离主动反射传感器的性能.
- 在升温和现场条件下,在温度增加10°C的情况下评估传感器行为.
- 为使用这种传感器技术的研究人员提出一个操作方法.
主要方法:
- 传感器的性能在1.2米使用二氧化白色涂装的规范化面板进行了评估.
- 检测器单位值和传感器机身温度被记录下来.
- 实地采集前后进行测量,温度波动超过1°C.
主要成果:
- 个别过的传感器探测器对相同的热变化表现出不同的反应.
- 在361次观测中,传感器探测器值平均每1°C变化0.24%.
- 温度变化显著影响传感器输出,凸显了校准的必要性.
结论:
- 在HTPP中的活性反射传感器容易受到温度诱导的不准确性.
- 建议ACS-470研究人员使用白板正常化和传感器温度稳定.
- 实施这些策略将提高植物表型化数据的可靠性和准确性.
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