CAJ | 학술논문

农药变量施药技术作为精准农业的重要组成部分，可降低生产成本、控制农药对环境的污染，提高经济和生态效益。农药流量测量在整个变量施药控制系统中担任着重要的任务，其准确度和稳定性，是决定变量施药控制系统成败的关键。为此，开发了一套基于时差法的超声波农药流量测量装置，该装置采用了主控制器STM32 F103 R6 T6和高精度时间测量芯片 TDC-GP21。通过实验结果和精度分析验证，研制的超声波农药流量计达到1％的测量精度，能够满足农药变量施药控制系统的设计要求，并且为高测量精度和低功耗的超声波流量计提供了一个参考。
농약변량시약기술작위정준농업적중요조성부분，가강저생산성본、공제농약대배경적오염，제고경제화생태효익。농약류량측량재정개변량시약공제계통중담임착중요적임무，기준학도화은정성，시결정변량시약공제계통성패적관건。위차，개발료일투기우시차법적초성파농약류량측량장치，해장치채용료주공제기STM32 F103 R6 T6화고정도시간측량심편 TDC-GP21。통과실험결과화정도분석험증，연제적초성파농약류량계체도1％적측량정도，능구만족농약변량시약공제계통적설계요구，병차위고측량정도화저공모적초성파류량계제공료일개삼고。
The pesticide spraying pesticide technology as an important part of the precision agriculture , by spraying pesti-cide to reduce production costs , control of pesticide pollution of the environment , improve the economic and ecological benefits .The pesticide flow measurement served as an important task in whole variable spraying pesticide control system . The pesticide flow measurement accuracy and stability , also will be the key to success or failure of the decision system .In order to improve the measurement accuracy and stability of pesticide , the design has developed a set based on the time difference method of the ultrasonic pesticide flow measuring device , the device adopts the master controller STM32F103R6T6 and high precision time measurement chip TDC-GP21.Through the experimental result and accuracy a-nalysis of ultrasonic flowmeter verification , the development of the ultrasonic pesticide flowmeter can achieve 1%accura-cy, which meets the design requirements , and provides a reference for the high measurement accuracy and low power ul-trasonic flowmeter .