This experiment's focus is on introducing one with the features of Winscope. Winscope is software that simulates an oscilloscope/spectrum analyzer and is used in the eight computer interface experiments in the PK-201 kit. The Winscope software uses a cable connected to the PC microphone input socket to interface with the circuit. One will use Winscope to view the electrical signal to the speaker in this experiment's circuit. By adjusting the gain and position control features will enable one to “see” the amplitude (voltage level) of a signal, and also see voltage vs frequency of a signal; more over, by adjusting the settings on the oscilloscope, one can look at both very large and very small voltage wave forms. The pictures below the two circuits are the screen shots of each step taken in this experiment. Lastly, it has to be understood that Winscope is inexpensive and is being used here as a teaching tool. There are limitations in regards to the microphone input and measuring wave forms correctly, so in this sense accuracy can not be relied on.
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| Circuit using a .047microfarad capacitor |
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| Amplification set too high |
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| Adjusted Amplification 1:1 mode in 5ms/div time scale |
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| Waveform time scale changed from 5ms/div to 0.5ms/div |
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| Trigger position level (dash far left) |
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| voltage vs frequency |
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| Circuit using a 10microfarad capacitor |
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| voltage (amplitude) vs time |
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| voltage vs frequency |
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| adjusted horizontal scale |
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