N-type thermocouple WRN

1、 N-typethermocoupleintroduce

　　n-typethermocouple(WRN)It is processed from two types of conductors, nickel chromium silicon nickel siliconthermocoupleThe positive electrode is made of nickel chromium silicon material, and the negative electrode is made of nickel silicon material. The scale range is -270~1300 ℃, and the mv value (1000 ℃ value) is -4.345~47.513 (36.256), N-typethermocoupleOvercomed itK-typethermocoupleTwo important drawbacks that cannot be achieved:K-typethermocoupleThe thermal electric potential instability caused by the short-range ordered lattice of nickel chromium alloy between 300~500 ℃; The thermal electric potential instability caused by preferential oxidation of nickel chromium alloy at around 800 ℃.

2、 N-typethermocoupleImage Collection

3、 N-typethermocouplePerformance and advantages/disadvantages

1. Good resistance to nuclear radiation and low temperature

2. Strong temperature regulation and antioxidant capacity below 1300 ℃;

3. Within the temperature range of 400-1300 ℃, N-typethermocoupleThe linearity of the thermoelectric characteristics is better than that of the K-type couple;

4. The nonlinear error is relatively large in the low temperature range (-200~400 ℃), and the material is hard and difficult to process.

5. Good long-term stability and short-term thermal cycling reproducibility;

Disadvantages:

1. N-typethermocoupleIt cannot be directly used at high temperatures in sulfur, reducing or oxidizing alternating atmospheres and in vacuum, nor is it recommended for use in weakly oxidizing atmospheres.

2. N-typethermocoupleThe material is relatively hard and difficult to process;

3. The nonlinear error is relatively large within the range of -200~400 ℃.

4、 N-typethermocoupleTolerance table

4、 N-type armorthermocoupleWhat is it?

The N-type has already been introduced abovethermocoupleWhat does' one more armor 'mean? That is, to transform the N-typethermocoupleProcessed into armor, the armor is also bendable, N-type armorthermocoupleIt is to process thermocouples made of N-type conductor materials into bendable ones, with models such as WRNK-191

Related recommendation: K-type thermocouple micro armored thermocouple