CAJ | 학술논문

针对目前测定直链淀粉含量的仪器存在价格昂贵、前处理繁琐且体积庞大等弊端，设计开发了一种基于光电比色原理的专用型直链淀粉测定仪。该仪器以STM32嵌入式系统芯片作为主控制器，创新性地采用液体透射式光纤探头替代比色皿取样，光电检测电路采用高性能单波长激光光源与对数放大器，提高了系统的检测精度和准确度。该仪器具有小型化、成本低、检测简单、准确、可靠便携等优点。实验结果表明：该仪器测定样品直链淀粉含量的相对误差为1.34%～1.73%，完全满足日常测量要求，适于在流动监测或现场分析推广应用。
침대목전측정직련정분함량적의기존재개격앙귀、전처리번쇄차체적방대등폐단，설계개발료일충기우광전비색원리적전용형직련정분측정의。해의기이STM32감입식계통심편작위주공제기，창신성지채용액체투사식광섬탐두체대비색명취양，광전검측전로채용고성능단파장격광광원여대수방대기，제고료계통적검측정도화준학도。해의기구유소형화、성본저、검측간단、준학、가고편휴등우점。실험결과표명：해의기측정양품직련정분함량적상대오차위1.34%～1.73%，완전만족일상측량요구，괄우재류동감측혹현장분석추엄응용。
Aiming at disadvantages of expensive price,tedious pre-treatment and bulkiness that amylose content determinator has,design and develop a tailored version amylose daterminator besed on the theory of photoelectric colorimetry. STM32F103 is used as the core controller,liquid transmission optical fiber probe is used innovatively instead of the cuvette,high-performance single-wavelength laser lamp-house and log amplifier are adopted to improve the precision and accuracy of the detection system. The apparatus has miniaturization,low cost,simple and accurate detection,reliable and portable and other advantages,Experimental result shows that the relative error range is 1. 34 %~1. 73 %,fully meet measurement demand,so it is well suitable for application in mobile surveillance or on-site analysis.