摘要
Aiming at high requirements of temperature measurement system in high temperature,high pressure,highly corrosive and other special environments,a temperature acquisition system based on field-programmable gate array(FPGA) which is the controller of the system is designed.Also a Flash memory is used as the memory and an erosion thermocouple is used as sensor of the system.Compared with the traditional system using complex programmable logic device(CPLD)and microcontroller unit(MCU)as the main body,this system has some advantages,such as short response time,small volume,no loss of data once power is off,high precision,stability and reliability.And the sensor of the system can be reused.In this paper,boiling water experiment is used to verify accuracy of the system.The millisecond level signal from firecrackers is for verifying the stability and fast response characteristics of the system.The results of experiment indicate that the temperature measurement system is more suitable for the field of explosion and other environments which have high requirements for the system.
Aiming at high requirements of temperature measurement system in high temperature, high pressure, highly corro-sive and other special environments, a temperature acquisition system based on field-programmable gate array （FPGA） which is the controller of the system is designed. Also a Flash memory is used as the memory and an erosion thermocouple is used as sensor of the system. Compared with the traditional system using complex programmable logic device （CPLD） and microcontroller unit （MCU） as the main body, this system has some advantages, such as short response time, small volume, no loss of data once power is off, high precision, stability and reliability. And the sensor of the system can be reused. In this paper, boiling water experiment is used to verify accuracy of the system. The millisecond level signal from firecrackers is for verifying the stability and fast response characteristics of the system. The results of experiment indicate that the temperature measurement system is more suitable for the field of explosion and other environments which have high requirements for the system.
基金
Natural Science Foundation of Shanxi Province(No. 2009011023)
