欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用热脉冲技术测量植物蒸腾速率时存在由于热敏电阻引起的热脉冲信号温差峰值时间确定困难的问题。为此，提出了基于差动放大原理的热脉冲检测及信号处理方法，研究了PIC单片机与数字电位器间的IIC通信。其中，数字电位器的线性特性可以便捷地应用于放大电路的反馈网络中，从而提高了检测精度并降低了对后续采集设备的要求。
英文摘要：
The measurement of plant transpiration rate using heat pulse technology has the determination problem of peak -time which caused by thermal resistance. This paper presents the measurement and the processing approach of heat pulse signals, and the IIC communication between PIC MCU and digital potentiometer is researched. In addition, the lin- ear characteristic of digital potentiometer can be used into the feedback network of magnify circuit, consequently the de- tection precision is raised and the requirement of subsequent data collection equipment is reduced.
同期刊论文项目
同项目期刊论文
Effects of soil column heights on movement of soil water and soil salt during evaporation under perf
Synchronously determining philip infiltration parameter and synthesis roughness model of border irri
Applicability of explicit functions on cumulative infiltration of Green-Ampt model under different c
An ATP-binding cassette subfamily G full transporter is essential for the retention of leaf water in
期刊信息
位置：