Experiment 7 Interesting Traces The following are a few suggestions for generating unusual traces on your oscilloscope using the Fourier Synthesizer.They can be fun,and they can also provide an interesting challenge to your students to see if they can determine how the traces are formed. 1.Braces-Add the first fundamental in the sine waveform with the second fundamental in the triangular waveform.Adjust their amplitudes to the same value and make them 180 out of phase. 2.V's-Construct the braces,as above,then switch the first fundamental to the square waveform 90 out of phase. 3.Disjointed sine wave-Add the first fundamental in the square waveform to the second fundamental in the sine waveform.Set the phases to the same value and adjust the amplitude of the square wave so it is considerably less than that of the sine wave. 4.Figure Eight-Connect the oscilloscope to the Synthesizer as for displaying Lissajous figures. Connect the first fundamental (in the sine waveform)to the horizontal input Connect the second harmonic to the vertical input.With the amplitudes of both waveforms approximately equal,adjust the phase of the second harmonic until the figure eight is centered. 99 Experiment 7 Interesting Traces The following are a few suggestions for generating unusual traces on your oscilloscope using the Fourier Synthesizer. They can be fun, and they can also provide an interesting challenge to your students to see if they can determine how the traces are formed. 1. Braces- Add the first fundamental in the sine waveform with the second fundamental in the triangular waveform. Adjust their amplitudes to the same value and make them 180 out of phase. 2. V's- Construct the braces, as above, then switch the first fundamental to the square waveform 90 out of phase. 3. Disjointed sine wave- Add the first fundamental in the square waveform to the second fundamental in the sine waveform. Set the phases to the same value and adjust the amplitude of the square wave so it is considerably less than that of the sine wave. 4. Figure Eight-Connect the oscilloscope to the Synthesizer as for displaying Lissajous figures. Connect the first fundamental (in the sine waveform) to the horizontal input. Connect the second harmonic to the vertical input. With the amplitudes of both waveforms approximately equal, adjust the phase of the second harmonic until the figure eight is centered