In order to connect the external thermocouple that we ordered to the Arduino Red Board, we need some kind of add-on interface, known as shield, as the UNO Red Board itself doesn’t provide such utility. Basically, shields are interchangeable add-on modules that can be connected to the micro-controller to facilitate programming and incorporate into other circuits. The shield that we’ll use is called the TC4 that is specially used in...

According to the temperature profile for the Sn63Pb37 solder paste, a completed reflow soldering process contains the following stages: Preheat Zone: The heating rate in the preheat zone should be 2°C to 4°C/second and the peak temperature in this zone should be 100-125°C. During preheat if the temperature ramp is too fast, the solder paste may splatter and cause solder balls. Also, to avoid thermal shock to sensitive components such as ceramic...

We decided to order to different types of thermocouple, one bared wires and one with round insulators. The bared wire thermocouple is the BARE-20-K-12 with AWG wire size of 20. The thermocouple with double hole round insulator is the DH-1-24-K-12 with AWG wire size of 24. This one uses the DH-1-24 insulator, which can endure the temperature up to 1600°C (2900°F). Also today I tried to implement the LCD display using the Arduino Redboard....

On the same graph with the 3 data plots that we gathered last week, I put in the ideal profile temperature using the estimation method. I also made some studies about the solid state relay to better understand how it works and functions. A solid state relay is an ON-OFF control device in which the load current is conducted by one or more semiconductors, like a power transistor or thyristor. Like all relays, the SSR requires relatively...