毕业论文--毛细管电泳仪激发光源波长自动转换装置的设计.docVIP

摘要 目的：设计和开发激发光源波长自动转换装置，使其完成激发光源LED波长的自动转换，满足不同样品使用不同波长LED激发光源的需求。方法：通过计算机程序控制，Visual C编程；PCI插槽连接A/D，D/A转换板来控制毛细管电泳仪；通过步进电机的正反旋转驱动LED波长转换装置，选择LED波长；通过调整整体式五轴定位移动台将LED有效聚焦光与光导纤维很好地耦合。结果： LED激发光源采用转盘式结构，结论可方便地实现激发波长的自动转换和控制光导纤维经过实验和调整，该装置符合设计要求。 关键词：毛细管电泳仪；激发光源；半自动生化仪；LED荧光诱导；波长转换。 Abstract Objective: To design and development of excitation light wavelength conversion device automatically，so initialization，the excitation light wavelength automatic conversion component by rotating the control of the starting position positioning and signal feedback.The pros and cons of the rotary drive of the computer controlled stepper motor with a different wavelength LED turntable rotation to complete the automatic conversion of the excitation light source LED wavelength to meet the different samples to the needs of different wavelength LED excitation light source. Methods: The computer program control，Visual C language programming；a PCI slot to connect the A / D and the D / A converter board to control capillary electrophoresis； rotating through the pros and cons of rotation of the stepper motor drive LED wavelength conversion device，select the LED four kinds of wavelength；by adjusting the overall five-axis positioning the mobile station to the LED effectively focus light and fiber-optic coupling. Results: The LED excitation light wavelength conversion device is a turntable structure，to the measuring position by the rotation of the stepper motor driver. Experiments to see the selection of five-axis positioning table，so that the fiber-coax better，to improve light output energy. Conclusion: The wavelength conversion device can be easily automatically convert and control a variety of excitation light wavelength. Improve the coupling efficiency of light and fiber optics. After the experiment and adjust the device to meet the design requirements. Keywords： Capillary electrophoresisexcitation source semi-automatic biochemical analyzer LED fluorescence induction wavelength conversi