CAJ | 학술논문

根据不同浓度溶液折光率不同，设计了一种混药浓度在线检测的装置。同时，选用650 nm 二极管激光器作为光源、PSD作为信号接收器，设计和制造了三角形流道和以 OPA4277芯片为主的信号放大电路。试验结果表明：在总流量为4．77L／min时，其线性度较高（R2＝0．9953），数据离散程度较低（CV＝2．4％），检出时间小于5s，检测最大偏差为0．0152g／L，可用于混药浓度的在线检测。
근거불동농도용액절광솔불동，설계료일충혼약농도재선검측적장치。동시，선용650 nm 이겁관격광기작위광원、PSD작위신호접수기，설계화제조료삼각형류도화이 OPA4277심편위주적신호방대전로。시험결과표명：재총류량위4．77L／min시，기선성도교고（R2＝0．9953），수거리산정도교저（CV＝2．4％），검출시간소우5s，검측최대편차위0．0152g／L，가용우혼약농도적재선검측。
This paper designed an online detection of mixed concentration device based on different concentrations of so-lution have different refractive index.Used a 650nm diode laser as a light source, the PSD as a signal receiver, designed and manufactured the triangular flow channel and OPA4277 chip-based signal amplification circuit.The performance test showed that at the flow of 4.77L,this device has a higher linearity with R2=0.9953,data dispersion degree is low with CV=2 .4%,check out time is less than 5 s. At this time the largest deviation is 0 .015 2 g/L which can be applied to mixing concentration online detection.