Type N

Type N Thermocouple

Type N Thermocouple
Data and Polynomial


  • Description
    Ni-Cr-Si / Ni-Si-Mg
  • Data source
    National Institute of Science and Technology (NIST)
  • Raw Data
  • Octave format
  • Curve fit
    • mV -> temperature (C)
      e is maximum error (in degrees C)
      v1 andf v2 partition the domain into three segments, each with a polynomial fit
      c is vector of coefficients: a10, a9, ... a0
      Note: Each column of c corresponds to one range (<v1,v1 to v2, >v2)

      e = 1.1191

      v1 = -0.26000

      v2 = 7.6310

      c =

         -3.8420e-01    1.7932e-06   
      1.5013e-13

         -8.5101e+00   -7.0652e-05   -3.6475e-11

         -8.1238e+01    1.1941e-03   
      3.7831e-09

         -4.3750e+02   -1.1312e-02   -2.1762e-07

         -1.4616e+03    6.5907e-02   
      7.4995e-06

         -3.1382e+03   -2.4408e-01   -1.5180e-04

         -4.3415e+03    5.7431e-01   
      1.3706e-03

         -3.7755e+03   -7.9333e-01   
      1.4498e-02

         -1.9495e+03   -3.6240e-01   -7.0781e-01

         -4.9321e+02    3.8396e+01   
      3.6612e+01

         -5.7426e+01    1.3776e-02  
      4.4746e+00





      type_n mV->C
    • temperature -> mV (range -127C-127C)
      e is maximum error (in mV)
      c is vector of coefficients: a10, a9, ... a0

      e = 0.0010752

      c =

         -1.6747e-22

         -5.7538e-21

          7.8795e-18

          2.6677e-16

         -1.4423e-13

         -4.9429e-12

          1.5144e-09

          1.0610e-08

          1.1520e-05

          2.6083e-02

         -9.2802e-04





      type_n temperature->mV curve fit

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