Hallo,
I'm new to this forum and to programing Arduinos so forgive me if this was posted many times.
I did a quick search but couldn't find anything helpful.
For my bachelors thesis I'm building a rocket engine and I have to meassure temperature and pressure in the combustion chamber (solid rocket fuel motor - basicly R-candy fuel). I have the setting up the equipment part figured out but I'm really bad at programming and electronics.
What I need is to connect one high temperature thermocouple sensor to one analog input of the arduino (Arduino UNO) and the pressure transducer to the another one.
The thermocouple has a range from -100 to 1250°C with two fork terminals for connection ( http://www.aliexpress.com/snapshot/7474626102.html?orderId=73873868792048 ). I will have to push the sensor a bit beyond it's limits (cca. 1400°C). Unfortunately I couldn't find a sensor with a higher range.
From what I gathered I need an amplefier to which I connect the sensor and then the amplifier to the Arduino board.
The pressure transducer ( http://www.ebay.com/itm/271511515207 ) has a range of 1600PSI. It gives, depending on the pressure, a voltage of 0.5-4.5V. Do I have to connect it via an amplifier too or directly to the arduino board?
Oh and btw I would like the data to be saved in a text or excel file so I can plot graphs later.
Thank you very much!