at 100°C. A control system will regulate the vapor
temperature, so a measurement must be provided to
convert 40°C to 90°C into 0 to 4 V. Use an RTD sensor.
The RTD will output over the 50°C range will be
substantially linear. The RTD specifications are: Rat
60°℃ = 1500, a at 60°C = 0.004/°C, PD = 30mW/°C.
The error should not exceed ±1°C. Design the system
with op amps and a bridge circuit similar to the class
lecture and notes. Assume the power supply is 5 V.
Fig: 1