糖浆浓度的激光自动折光检测系统

AUTOMATIC LASER REFRACTOMETER MEASUREMENT SYSTEM FOR SYRUP CONCENTRATION

采用高稳定度的激光光源和具有高分辨率、高灵敏度、抗晕光能力强、光动态范围大的ＣＣＤ（ＣｈａｒｇｅＣｏｕｐｌｅＤｅｖｉｃｅ）电荷耦合器件，构成激光－ＣＣＤ糖浆浓度传感器，配以三路脉冲驱动电路、测量电路、单片机系统等，可自动检测被测糖浆的温度和浓度，并对温度变化而引起的浓度变化作自动修正．实验结果表明，测量糖浆浓度的误差为０．３％．

It has been carried out automatically to measure the temperature and concentration of syrup and to correct the syrup concentration caused by the change in temperature with a CCD (Charge Couple Device), is a laser CCD syrup concentration sensor, which is of high stability,resolving power (RP), sensitivity, halo_resistant capability and wide optical dynamic range, together with a three_channel driving circuit, a measuring circuit and a single_chip computer. The experimental results show that the measuring error of syrup concentration is about 0.3%.