Introduce research and design of a high precision nitrogen measurement instrument based on thermal conductivity sensor. Theoretical analysis and design are carried out on core components

thermal conductivity sensor in nitrogen measurement instrument

and on this basis

use architecture platform of CPLD ATF1508 AS

hardware design and software design of control system are carried out. Based on thermal conductivity sensor detection and the test

the nitrogen measurement instrument has advantages of fast measurement speed

high precision

high signal to noise ratio

accuracy and precision are far higher than the national standard.