N type thermocouple what are the advantages and disadvantages compared with k type thermocouple _ instrument
N type thermocouple n type thermocouple have the advantages of high temperature oxidation resistance is strong, long term stability. K type thermocouple nickel chromium anode preferential oxidation caused by cr, si element in the alloy composition is uneven and thermoelectric drift, cr, si content in n type thermocouple, nickel-chromium alloy oxidation patterns by internal oxidation into external oxidation, the oxidation reaction on the surface only; Short-term thermal cycling stability at low temperature, and inhibit the magnetic change; 。 - Radiation resistant ability. N type thermocouple is cancelled easy disintegration of k type thermocouple elements mn, co, further strengthen ability to resist neutron irradiation; , within the range of 400 ~ 1300 ℃, the thermoelectric properties of n type thermocouple linear than k type. N type thermocouple material is harder than k type thermocouple, the more difficult processing; The price is relatively expensive. The thermal expansion coefficient of n type thermocouple 15% lower than stainless steel, so the outer casing of n type thermocouple shall adopt the nicrsi/nisi alloy; In - 200 ~ 400 ℃ within the scope of nonlinear error is bigger.
During the exhibition season, the company team, with company letter product thermocouple, thermal resistance electronic temperature and other products, visited our company's European and South American customers, meet with old customers at the exhibition, new products are welcomed by old customers; should be invited, visit customer company, deepen The understanding of both sides is for further cooperation.