Wednesday, May 7, 2014

Day 18 Lab 05/05/14


Electronics Part II:

In this lab experiments we were introduced to many circuits and oscilloscopes and along the way with capacitors, inductors. An inducer can only provide one direction of flow and when placed in a circuit. In this experiment we build a circuit connected to a power supply and function generator to see the effects the inductor has in the circuit. As a result there was a speaker placed in the circuit to hear a certain white noise to prove that the circuit was providing the right elements in the circuit. The second part of the lab was to build an amplifier using the known knowledge prior that we learn by placing the speaker in the circuit as the output and aux as the input to place music and serve as an amplifier. The purpose was bringing all the elements like resistors, capacitors, inductors, etc. together to build a functioning circuit to make a useful item.

This is the lab setup with the introduction of an inductor and build a circuit connecting them with function generator and power supply to provide a certain noise to hear using the elements. With the knowledge prior of making circuits we are able to try to make it functioning.


The circuit in the first experiment using the tools as seen in the image for producing a type of noise by placing a speaker in the circuit. The function of the generator is to provide it with a frequency to be seen on the scope and disruption from the circuit.

However in the circuit our group build we weren't able to get the right results we wanted to successfully do the lab. We placed the circuit in the right positions as well as the function generator and power supply. But when trying to view the result using the oscilloscope, it was not placing the right image on the screen. The group thinks that the problem was within the circuit, that one of the tools was not working properly like if one of the fuses was blown. We replaced the inductor thinking it was not working but same result was that it was not working so we had to move on with the experiment. The circuit was setup and the generator was in connection but we couldn't find what the problem was that was not giving the proper results.


This is the setup for the amplifier using a bug like tool called ___ and made it easier to make the circuit because each one had it's own leg to be connected with. By connecting in an input which was the speaker and placing output, an aux cord, to plug in a phone we were to get the result of an amplifier.

In this experiment we weren't able to make the speaker play loud because there was something wrong with the circuit again. We used a multi-meter to check if there was something wrong with any of the tools but the voltage was going through each of the tools. It would make it sound as it was plugged in but it would fade out as soon as the phone was plugged in.

The speaker used to make the amplifier by placing in the circuit. It would make the music sound louder coming from the phone and through the circuit.




















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