Today I made some basic studies about the quartz heating element that is used for our oven. The quartz electric heating elements provide medium-wave infrared energy with a fast heat up and cool down time. With element temperatures ranging from 1000 °F (537°C)  up to 2000°F (1093°C)  the elements produce infrared energy in the 2 to 3.5 micron range. Lower operating temperatures produce longer wave lengths. Quartz Infrared offers...

As we mentioned earlier, the original oven circuitry has the two upper elements connected parallel with the two lower elements. After doing some rewiring, by disconnecting all the controllers from the circuit and adding the micro-controller in, we got a circuit that look as following: There are many different ways that we can connect these heating elements together and therefore we figure that before we do any more rewiring, we should do some...

On the previous day we connected the circuitry system with 2 upper heating elements connected to each other and parallel to the two lower heating elements. After that, I did some test to see how the oven’s performance and below is the graph of the temperature rate of rising withing the oven using the thermocouple inserting inside the oven: While the oven was running, I noticed that instead of all the heating elements running like what we...

The draft circuitry for our new oven looks as below: The upper heating elements are connected parallel with the lower heating elements. These elements are then connected to the AC power which sends out an sinusoid power signal. The solid state relay will act as a switch which allows us to control the current going to the heating elements by sending out the digital signal 0 and 1. If it’s 1, the switch will be closed and the current will...