The below circuit is a thermometer with a Type-K thermocouple. Red cable (the first cable) is Chromel and blue cable (the second cable) is Alumel. The resistance values are given below. The forward bias voltage for the diode is 0.3V. If the temperature T1 is 82 ⁰C calculate the output voltage in terms of mV.

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The below circuit is a thermometer with a Type-K thermocouple. Red cable (the first cable) is Chromel and blue cable (the second cable) is Alumel. The resistance values are given below. The forward bias voltage for the diode is 0.3V. If the temperature T1 is 82 ⁰C calculate the output voltage in terms of mV.

R3 = Rị = R, = R, = 1kN, R4 = 2kN, R, = 4.5kN, R, = 2002
Seeback coefficient of Chromel is 22.7 µV/°C, Seeback coefficient of Alumel is -17.3 µV/°C
%3D
Va
R4
Rg
T1
Rb
R3
+Vo2
25°C
Vins
R1
Ri
Rb
Output
Voz R3
R4
Vref
Vce-w
R,
Vb
Transcribed Image Text:R3 = Rị = R, = R, = 1kN, R4 = 2kN, R, = 4.5kN, R, = 2002 Seeback coefficient of Chromel is 22.7 µV/°C, Seeback coefficient of Alumel is -17.3 µV/°C %3D Va R4 Rg T1 Rb R3 +Vo2 25°C Vins R1 Ri Rb Output Voz R3 R4 Vref Vce-w R, Vb
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