project-1

# project-1 - Worcester Polytechnic Institute Department of...

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1 Worcester Polytechnic Institute Department of Electrical and Computer Engineering ECE 2011 —Introduction to Electrical and Computer Engineering Prelab for Project #1: Acoustic Rangefinder All of your prelab work is to be submitted along with your laboratory notes at the conclusion of your laboratory session and will represent a significant portion of the grade that you achieve for the project. 1. For the circuit shown in Figure 1 below, for what value of applied voltage v S is the power dissipated in the 82 Ω resistor equal to 0.25W? What is the power dissipated if v S =20V? Show all of your work and indicate your answers clearly—neatness always counts. 2. For the circuit shown in Figure 2 below, write KVL for the loop shown and calculate the expected voltages for V 1 , V 2 , V 3 , and V 4 (watch signs!) Figure 1 Figure 2 Note: Be sure to complete your prelab IN INK and on GRAPH PAPER!!

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3 Worcester Polytechnic Institute Department of Electrical and Computer Engineering EE2011 —Introduction to Electrical and Computer Engineering Project #1: Resistor Power Limit Verifying KVL Acoustic Rangefinder 1. Introduction Read this entire document. Follow every instruction during your laboratory session. Doing so is the most effective way to ensure that you will complete the project in the allotted time. In this laboratory session, you will have the opportunity to use the DMM and the DC Power Supply that you learned about in The Laboratory Orientation, as well as to learn how to use the protoboard that is part of your design kit. You will also learn to use the Function Generator to make a sine wave voltage waveform for use in the Acoustic Rangefinder project. The first part of the laboratory will introduce you to building and measuring circuits on your protoboard. Then you will implement the laboratory project — construction of an acoustic rangefinder. Remember : You must document the entire experiment in your laboratory notes. The notes should include: The date and time . Your partner’s name . The identity number of the laboratory bench at which you are working.

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4 The schematic diagrams of any circuits that you build. This is very important because, without them, your notes will make no sense to you at a later time. The results of any measurements made in the laboratory. These should be neatly tabulated or graphed—if appropriate— and labeled. Observations that are requested in the laboratory instruction. Your own thoughts about the experiment. Do the results make sense? Are they surprising in any way? Would you do anything differently if you had the opportunity to repeat the laboratory project? Keep these remarks brief and to the point. The
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## This note was uploaded on 10/13/2009 for the course ECE 2011 taught by Professor Bitar during the Spring '08 term at WPI.

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project-1 - Worcester Polytechnic Institute Department of...

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