基于单片机的水浴恒温控制系统设计

doi:10.16180/j.cnki.issn1007-7820.2019.06.014

Abstract

Abstract:

Aiming at the instability of water bath temperature, the digital temperature sensor DS18B20 was used to complete the water temperature detection and conversion. SCM STC89C52 controled the heating equipment according to the received signal.The constant temperature range was set and checked by three keys. The actual temperature was displayed by four-digit digital tube and the working state was displayed by one-digit digital tube. Built the hardware circuit of the system, completed the design and debugging of each hardware circuit, wrote the system program, and used Proteus to simulate the experiment. The simulation results showed that the system can control the temperature within the set range and display the real-time water temperature.The detection temperature can be accurate to 0.1 ℃ and the measurement range was 0~100 ℃ and the detection results was stable.

Key words: MCU, sensor, control, water ther meter, digital display, constant temperature range

CLC Number:

TP273.5

LI Yiping. Design of Water Bath Constant Temperature Control System Based on Chip Microcomputer[J].Electronic Science and Technology, 2019, 32(6): 69-73.

Figures/Tables 6

References 16

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Design of Water Bath Constant Temperature Control System Based on Chip Microcomputer

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