Presentation on theme: "Matt Duwe CSU Fellow EE Scott Kindt Physics Teacher Robb Sommerfeld P.O.E. Teacher Mil Santos Algebra II Teacher."— Presentation transcript:
Matt Duwe CSU Fellow EE Scott Kindt Physics Teacher Robb Sommerfeld P.O.E. Teacher Mil Santos Algebra II Teacher
Working in project teams, students will design & build a stereo system that will amplify the audio signal from an I-Pod. Project teams will be divided into three groups. (a) Amplifier design. Outsource schematic to Kate’s students. (b) Power supply & box for electronics. (c) Speaker & cross-over filter Design.
The Junior Fellow will be responsible for integrating all the parts into a working system. Does the power supply meet the requirements for the amplifier? Do the speakers have the efficiency to match the amplifier output? Are we under the $100 budget?
Solar powered stereo. Hand crank up stereo. Vacuum tube amplifier. Portable battery powered stereo. Standard solid state amplifier.
Power in vs. Power out, amplifier efficiency Maximum output in db Frequency Response Harmonic Distortion Cross-over point for speaker filter Other measurements
Robb’s POE class will devote more time to material science along with the CAD design & construction of the amplifier box. Students will have the opportunity experiment with different materials to build the stereo & speakers around the Kelvin 20 watt amplifier.
1.Define a Problem 2.Brainstorm 3.Research and Generate Ideas 4.Identify Criteria and Specify Constraints 5.Explore Possibilities 6.Select an Approach 7.Develop a Design Proposal 8.Make a Model or Prototype 9.Test and Evaluate the Design using Specifications 10.Refine the Design 11.Create or Make Solution 12.Communicate Processes and Results – ITEA Standards for Technological Literacy
Mil’s Algebra II classes will build the Kelvin 20 watt amplifier however their focus will be on testing and measuring the electronics. The Algebra II classes will also test the custom designed amplifiers made in the physics classes. The results will be compared to the Kelvin amplifier kits.
Application of the Design process. Working together as an engineering team. Principle behind amplifiers & circuit design. Power Supplies, AC-DC conversion, rectifiers. Hi pass, low pass filters with capacitors & inductors. How to test electronic equipment, amps & speakers. Efficiency of amplifiers. Application s of Algebra II & Engineering. How to make a scientific poster. How to present your project & ideas to a general audience.
How Doppler radar works Microwave frequencies Doppler Effect CSU CHILL Radar Interpreting weather radar Doppler Radar Gun to measure speed