One of case studies at Mechatronics class at Columbia University taught by Dr. Fred R. Stolfi. This case study is a dynamic system investigation of an important and a common mechatronic system: a thermal close-loop system.
The main apparatus includes:
- A microcontroller, PIC 16F74
- A resistive heater (SRMU 100202P)
- Two temperature sensor (AD590 and AD22100)
- A fan.
The film of On/Off temperature control:
The specification of resistive heater:
| Specifications | Value |
| Manufacturer | Omega Engineering Inc |
| Model Number | SRMU 100202P |
| Heater Resistance | 350 ohms |
| Heater Area | 4 in2 |
| Heater Thickness | 0.1 in |
The specification of temperature sensor are listed below:
| Specification | AD590 | AD22100 |
| Rated Temperature Range | -55℃ to 150℃ | 0℃ to 100℃ |
| Nominal Output at 0℃ | 273.2 μA | 1.126 V |
| Nominal Output at 25 0℃ | 298.2 μA | 1.587 V |
| Temperature Coefficient | 1μA / ℃ | 18.43 mV/℃ |
| Absolute Error | ± 5.5 ℃ | ± 2.0 ℃ |
| Nonlinearity | 0.8 ℃ | 0.5 ℃ |
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