Can you derive the sensitivity in mV/ºC you measured from the diode equation?
We can obtain the sensitivity in mV/ºC measured from the diode equation by taking into account the following values from the activity:
Vref=-6.953mV (obtained from the measurement presented in Figure 3)
Vtemp=7.879mV (obtained from the measurement presented in Figure 4)
The temperature of the sensor can be obtained using the following formula:
The sensitivity of the sensor is computed as follows:
What is the purpose of the reference diode in this configuration?
The reference diode serves as the temperature reference maintained at a constant temperature, considered as room temperature (25º C) for the experiments.