Development of a Temperature Control System in PCR Instrument
To develop the hardware, software of the temperature control system and explore the experimental results in a real-time polymerase chain reaction ( PCR ) instrument. In the real time PCR, we used a DSP320F2812 chip from TI Company as a core microprocessor-controller to implement the temperature signal acquisition and temperature control, which was provided with the speed advantage, data processing and powerful control functions. The experimental results showed that temperature rising rate was 3℃/s with precision 0. 2℃. and the data transfer precision at least 4.87% with the data transmission speed up to 15MB / s.