EEL 3003 Homework 07 Answer Sheet - Elements Elect Engr PDF

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Download EEL 3003 Homework 07 Answer Sheet - Elements Elect Engr PDF

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EEL 3003 Homework 07 Answer Sheet Answer the questions below using a word processing program (no handwritten answers accepted), Note: there might be multiple parts to some questions, insert pictures as required, save as a PDF, and upload into Canvas) Leave the question statements in your document, insert your answers/pictures, etc. after each individual question. First Name: Ykeshia Last Name: Zamore UF-ID Number: 3931-0647 Question 1: Based on sections ‘Optoelectronics’, ‘5.1 A Little Lecture on Photons’, ‘5.2 Lamps’, ‘5.3 LightEmitting Diodes’, ‘5.3.1 How and LED Works’, and ‘5.3.2 Kinds of LEDs’ in your textbook (pages 495-502) answer the following question. In you own words (100 words or more): What is a Light Emitting Diode, how does it work, and how could it be useful in an engineering application? A light emitting diode is a two lead semiconductor light source which allows them to emit visible or infrared light. The light emitting part of the LED is made of p-type and n-type semiconductors together to form a pn junction. When voltage is applied, the electrons combine with the electron holes of the device to emit energy as photons. The pn-jucntion is encased in epoxy shell which is doped with light scattering particles that allows the light to be diffused. Thus, the LED appears brighter. The blinking LEDs can be used in the manufacturing for car lights. LED’s can also be used for street lights in different areas. They can also be used in healthcare to calm patients for diagnostic and therapeutic purposes.

Question 2: 2a. Insert your picture of your built, functioning, Circuit 3, making sure you have included the three required items outlined in step c. of the instructions in a single, non doctored image, (label, circuit, UF-ID card).

2b. In your own words (50 words or more), describe your observations of the building and function of Circuit 3. This circuit was a fairly easy circuit to build. It only required wires and resistors to create the changing colors LED. This circuit can actually be used on gaming consoles to identify the stage at which the game is whether on or off. With this circuit, the colors aren’t limited either. It can be any color. Question 3: 3a. Insert your picture of your built, functioning, Circuit 4, making sure you have included the three required items outlined in step c. of the instructions in a single, non doctored image, (label, circuit, UF-ID card).

3b. In your own words (50 words or more), describe your observations of the building and function of Circuit 4. This circuit was another simple circuit. The wiring is simple to go through. I was wondering what application this circuit could be used for and the book described short segments used to send out information. So, I did more research and found that some of the signs on the high ways use this circuit to display messages to drivers. Question 4:

4a. Insert your picture of your built, functioning, Circuit 11, making sure you have included the three required items in a single, non doctored image, (label, circuit, UF-ID card).

4b. In your own words (50 words or more), describe your observations of the building and function of Circuit 11. This circuit was pretty interesting. Even when the program wasn’t sent to the Arduino, the piezo buzzer still made a nose due to a slight bit of voltage that was passing through. I was also wondering if the program could be modified to play different songs. It would be a pretty cool extra credit which will allow students to see the coding side of circuits. Question 5: (100 words or more) Describe an engineering application related to your major or related to a personal interest of yours that uses a piezo electric sensor or device, including how that piezo electric device functions. (no formal references needed, just use internet research and phrase in your own words). I found that piezo electric sensors can be used in biomedical devices. There are variations of devices depending on the electrical, mechanical, or hybrid output signal. Some electrical output devices include: frequency generators, force and pressure measurement sensors, accelerometers, etc. Linear scanning motors and wave generators are classified under mechanical output devices. One device that stood out to me was the medical ultrasonic transducer. This device is defined as a hybrid or combination device and is used to display images of internal organs of the body. This device can be used to check organs if the patient was part of a major accident or was shot....