At t = 0, a temperature sensor was suddenly changed from 25° to 100°. The sensor outputs voltage given by the expression V = (0.06V/°C) [T - 20°C]. The following table gives the voltages measured and the times. Determine the average time constant of the sensor.
|
t (seconds)
|
0
|
0.1
|
0.2
|
0.3
|
0.4
|
0.5
|
|
V (volts)
|
0.3
|
1.8
|
2.8
|
3.4
|
3.9
|
4.2
|