Figure 3
Temperature-sensing properties of the double module sensor. (a) The linear correspondence of the absolute value of electric resistance variation rate with temperature from 4 to 70 °C. (b and c) Influence of minimum distance between the finger surface and sensor on the relative resistance change. (d) I-V Curves denote the current of the sensors in response to temperature variated from 0 to 65 °C. Temperature-discrimination ability of the sensor during repeatedly approaching and moving away from the (e) heat source object, and (f) cool source object. (g) Temperature response curves recorded by our sensor and the PT100 temperature sensor. (h) Temperature–time curve at 20 °C, 30 °C and 40 °C.
