殷 哲,雷廷武,陈展鹏,晏清洪,董月群.近红外传感器测量不同种类土壤含水率的适应性研究[J].农业机械学报,2014,45(3):148-151.
Yin Zhe,Lei Tingwu,Chen Zhanpeng,Yan Qinghong,Dong Yuequn.Adaptability of Near-infrared Sensor for Moisture Measurement of Different Soils[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(3):148-151.
摘要点击次数: 3719
全文下载次数: 1555
近红外传感器测量不同种类土壤含水率的适应性研究   [下载全文]
Adaptability of Near-infrared Sensor for Moisture Measurement of Different Soils   [Download Pdf][in English]
投稿时间:2013-04-17  
DOI:10.6041/j.issn.1000-1298.2014.03.025
中文关键词:  土壤含水率 近红外 传感器 模型适应性
基金项目:国家自然科学基金重点项目(41230746)和中国农业大学研究生科研创新专项资助项目(KYCX2010101)
作者单位
殷 哲 中国农业大学 
雷廷武 中国农业大学 
陈展鹏 中国农业大学 
晏清洪 中国农业大学 
董月群 中国农业大学 
中文摘要:采用我国不同土壤类型地区的5种土壤样品,利用自行设计的近红外传感器测量不同土壤含水率对应的反射光强。选取中心波长1940nm的近红外光为测量光,1800nm为参考光,将两波长的反射光强值换算为相对吸收深度。实测结果表明,随着土壤含水率的增加,相对吸收深度增加,两者间呈线性相关关系。选取独立样品对线性标定模型进行验证,除红土外,其他4种样品的均方根误差均小于6%。通过标定,所设计的传感器能够较好地测定不同土壤的含水率。
Yin Zhe  Lei Tingwu  Chen Zhanpeng  Yan Qinghong  Dong Yuequn
China Agricultural University;China Agricultural University;China Agricultural University;China Agricultural University;China Agricultural University
Key Words:Soil moisture Near-infrared Sensor Model adaptability
Abstract:The sensor for soil moisture measurement should have broad adaptability, and the soil moisture can be measured by the sensor upon the determination of the relationship between soil moisture and relevant variable. Five typical soils from different geographic locations of China were sampled for soil moisture measurement test with the near infrared sensor designed with 1940nm as measuring wavelength and 1800nm as reference wavelength. The reflectance of those two wavelengths was transformed to relative absorbance depth to minimize the influencing factors. The results indicate there existing strong linear correlation between soil moisture and relative absorption depth for different soils. Independent data sets were used to validate the calibration model, and the root mean square error is less than 6% except for the red soil from southern China. The research shows the adaptability of the sensor for different soils and the calibration steps.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器