Title :
Design of weighing transmitter in corn yield measurement system
Author :
Wendong, Shi ; Jingling, Song ; Xinjun, Zhu ; Wengang, Chen ; Jin, Shen ; Wei, Liu
Author_Institution :
Sch. of Agric. & Food Eng., Shandong Univ. of Technol., Zibo, China
Abstract :
To reduce the interference and improve the weighing precision, a kind of weighing transmitter based on MSP430 Micro-Controller Unit (MCU), which is applicable to resistance strain sensor, is designed for corn yield measurement system and its hardware diagram and software design are given in detail. The design takes full advantage of 24-bit Analog to Digital Converter (ADC) ADS1232 to sample the output of weighing transducer, and weighted average method is used to process data. By comparing the results derived from weighted average method and arithmetic average method, it prove that the former is superior to the latter.
Keywords :
agricultural products; analogue-digital conversion; microcontrollers; strain sensors; 24-bit ADC; 24-bit analog-to-digital converter; ADS1232; MCU; MSP430 microcontroller unit; arithmetic average method; corn yield measurement system; hardware diagram; interference reduction; resistance strain sensor; software design; weighing precision; weighing transmitter; weighted average method; Calibration; Instruments; Kernel; Measurement uncertainty; Moisture; Transmitters; Weight measurement; ADS1232; MSP430; data fusion; weighing transmitter; weighted average method;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5778319
