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Optical Sensors Lab

Question # 00445234
Subject: Engineering
Due on: 12/21/2016
Posted On: 12/18/2016 11:06 PM

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Optical Sensors Lab

  1. Using Multisim, design a system using the photoconductive cell shown in the figure below to measure and display light intensity. Make the design such that 20 to 100mW/cm2 produces an output of 0.2 to 1.0V. What is the readout error when the intensity is 60mW/cm2? Show all calculations and Multisim results.

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  1. For the turbidity system show in Figure 2 below, two matched photoconductive cells are used in R vs. IL as given in Figure 3 below. Design a signal-conditioning system that outputs the deviation of the flowing system turbidity in volts and triggers an alarm if the intensity is reduced by 10% from the nominal of 15mW/cm2.

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Figure 2

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Figure 3

Tags sensors optical figure intensity design using multisim photoconductive turbidity outputs signalconditioning cells matched deviation used given triggers nominal 15mwcm2figure2figure3 reduced alarm volts flowing error display light measure shown sensors cell make 100mwcm2

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