Currently, I am working on programming PIC microcontroller to detect human body temperature by using LM35 sensor and it is working. Now, I want to replace the LM35 sensor with graphene incorporated with latex film sensor to detect the body temperature. The main problem is the graphene-latex sensor has no polarity to test through and this sensor has size like a piece of sheet (around 1cm (L) x 1cm (w) x 0.1cm (h)). I guess the easiest way to program the microcontroller to detect the graphene-latex sensor is to convert the temperature to resistance. Is it possible?
Dear Nur Asyikin
I sugest you to see with MEMS sensors
and here is a link to a paper that can help you.
Best Regards
ttps://www.researchgate.net/publication/264146176_A_MEMSNEMS_sensor_for_human_skin_temperature_measurement
Dear Ali Farmani,
1 method that i can think about is using RTD that may convert temperature to resistance. But, it is not known if RTD can be applied to rubber material.
Unfortunately, I am still doing research about RTD. But what I can say about RTD is when the temperature of a conductor changed, the resistance also changed. The sensing element is important to determine the sensitivity of the device.
The sensing element may have large resistance change with the changing of temperature and it should be stable. Usually for sensing element, metals such as copper and platinum are widely used. Generally, RTD concept is more like thermistor and thermocouple which are used to convert temperature to resistance or vice versa. If I not mistaken.
But, in my case, I don't know if this concept can be applied on graphene-latex sensor. If can, then how to apply it?
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