Electronics Experiments

Physics 3340/4430/5430 Spring Semester, 2001

All of the electronics experiments are designed to be completed in one week. The first two experiments are introductory. Experiments 3 through 6 cover operational amplifiers and would usually be done in sequence. Experiments 10 and 11 cover digital electronics, and should be done in sequence.  Experiment 13 and 14 are “advanced” electronics experiments.  They may be done by students who have already taken 3330.  They currently have no associated manual.

1) Absolute Measurement of the Faraday. Measurement of the Faraday in terms of SI units of mass, length, and time. (The Faraday is the charge in Coulombs of Avogadro's number of electrons.)

2) Electronic Instruments. Introduction to oscilloscope, function generator, counter/timer, and digital multimeter.

3) DC measurements, dividers, and bridges. Voltage dividers, Wheatstone bridges, and 4-point measurements.

4) Filters and Waveform Shaping. Use of passive components (R, C, and L) to construct simple filters. Measurement of frequency response.

5) Operational Amplifiers and Negative Feedback. Introduction to operational amplifiers. Noninverting amplifier connection. Thermocouple amplifier.

6) Virtual Ground Amplifiers. Inverting (virtualground) amplifiers. Integrator used as a magnetometer.

7) Positive Feedback and Oscillators. Stability of feedback circuits and active LC oscillator.

8) Transistor Amplifiers. Twostage amplifier made from NPN bipolar transistors.

9) Photometer and Lock-in amplifiers. Introduction to photodiodes, light emitting diodes, and lockins.

10) Digital Logic Elements. Introduction to digital electronics.

11) Counters and Decoders. Digital circuits for binary counting and for binary decimal conversion.

Other experiments you can try:

12. Measurement of Nuclear Particle Energies. Introduction to pulse electronics.

13.  Phase-locked loop amplifier.  For frequency synthesis, low-noise signal detection, and RF receivers.

14.  Servo-control system.  Introduction to basic feedback and control principles.

15. Soliton propagation on an electronic transmission line.

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