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Nt1310 Unit 3 Episode 1

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Career Episode One Introduction C.E 1.1 I completed this collective project in the optoelectronic information laboratory of University of Shanghai for Science and Technology from July to October 2011 when learning the photoelectric detection technology. As the team leader, I completed the project design, team organization, actual operation and other core work. Background C.E 1.2 Upon completion of the basic course research in the freshman and sophomore year, my teacher Ling Chen believed that he should enhanced our practical ability, so he provided us with the topic of the research on lubricating oil film thickness precision detection technology of the sliding bearing based on the principle of the optical fiber displacement sensor. Our research object was water film thickness detection. C.E 1.3 First, I made exhaustive investigation of the actual significance of the work. I found that the water film thickness detection was an important means to avoid friction and abrasion and avoid the original working performance and service life. For example, in …show more content…

I first determined that the hardware circuit was mainly composed of a stabilized voltage supply module, a light source module, a photoelectric conversion module, a low pass filter module and a dividing hardware module. I had completed the design of some hardware circuits before this project and found that the complex hardware had tedious wiring. As for this project, each module had a chip requiring power supply. If the power required by each module was supplied through an external power supply, the power connection wiring would be complex. So I independently designed a power module divided by two CS3673 chips to obtain +12V and -12V voltage. In terms of light source selection, I selected HFBR-1414 optical fiber emitter with the wavelength of 820nm, because it was characterized by high optical coupling efficiency, low energy consumption and stable

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