mutthunaveen
Junior Member level 1
i have designed a small project which monitors the temperature
i went for K-type thermocouple due to its wide range of temp measuring
i used AD595 as the conditioning ckt for my project
K-type thermocouple to AD595 and form AD595 to PIC 16F877A ADC. this is how my project build...
i initially when i power-up my ckt . the temperature read by the PIC is good with -3°C error... thats tolerable.. but after 10 min when i see the temp read there is a difference of nearly 14°C to 18°C
i cont figureout why this is happening. any suggestions please...
ADC read value with 10bit resolution and converted to mV and displayed in 20x4. i am checking the temperature by co-relating the mv to the K-type thermocouple table
i went for K-type thermocouple due to its wide range of temp measuring
i used AD595 as the conditioning ckt for my project
K-type thermocouple to AD595 and form AD595 to PIC 16F877A ADC. this is how my project build...
i initially when i power-up my ckt . the temperature read by the PIC is good with -3°C error... thats tolerable.. but after 10 min when i see the temp read there is a difference of nearly 14°C to 18°C
i cont figureout why this is happening. any suggestions please...
ADC read value with 10bit resolution and converted to mV and displayed in 20x4. i am checking the temperature by co-relating the mv to the K-type thermocouple table
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