Papers by Keyword: Photoelectric Measurement

Abstract: The intelligentizing of sensor has been an important trend for sensor technology in recent years. In this paper, the new structure of the intelligent color scale sensor is presented; especially the software system design of intelligent color scale sensor based on the photoelectric measurement is given in detail. By using the control system based on Micro Control Unit (MCU), which takes full advantage of the resources on MCU, a new digital intelligent color scale sensor is successfully developed at a lower cost. Also, it has an ideal performance on the key index such as sensitivity, detection accuracy, response speed, reliability, operability and degrees of protection.

Abstract: A novel photoelectric sensor based on differential method and position sensitive detector for refractive index (RI) measurement is proposed. In the paper, we systematically proposed an electro-optical measurement principle, built a mathematical model, and designed the structure of sensing probe; through detail calculation, key parameters of the refractometer are determined, simulation results showed that resolution reaches order of 10^-6, preliminary experiment also verified the feasibility of the design.

Abstract: In order to precisely measure the fineness of raw silk, some features of raw silk are analyzed. By use of Fresnel principle, diffractions caused by raw silk in different conditions are analyzed and simulated. Image data of the fineness of raw silk measured by CMOS image sensor is analyzed for obtaining precise result. Finally, some suggestions are proposed for photoelectric measuring the fineness of raw silk.