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Matthew Croft Somerset High School

Possible Alternatives to Using an Oscilloscope for Measuring Action Potential in the Cockroach Leg Laboratory. Matthew Croft Somerset High School. Summary.

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Matthew Croft Somerset High School

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  1. Possible Alternatives to Using an Oscilloscope for Measuring Action Potential in the Cockroach Leg Laboratory Matthew Croft Somerset High School

  2. Summary • While the Measuring Action Potential in the Cockroach Leg Laboratory is interesting and worthwhile, the equipment is not commonly found in a typical high school science department. • In addition, students may have difficulty operating oscilloscopes and obtaining data. • Several alternatives to using oscilloscopes are discussed.

  3. #1. The Poor Man’s Oscilloscope

  4. Introduction • Source: www.ledametrix.com/oscope/ • It may be possible to construct a poor man’s oscilloscope using a 3.5mm audio cable that has been separated into three wires and attached to fine pins:

  5. Measuring Action Potential • Oscilloscope Software • Example: • Audio Editing Software • Examples:

  6. Measuring Action Potential • Sample Data from Audacity: • Speaker (similar to what we did in lab without the oscilloscope)

  7. Benefits & Drawbacks

  8. #2. Multimeter

  9. Introduction • It may be possible to measure action potential on a multimeter set on mV.

  10. Benefits & Drawbacks

  11. #3. Vernier Sensors

  12. Introduction • VernierLabPro and LabQuest allow you to use a wide variety of sensors to collect information. Data can be analyzed in LoggerPro.

  13. Possible Sensors • Voltage Probe

  14. Possible Sensors • EKG Sensor

  15. Benefits & Drawbacks Ulf thinks it will work!

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