Type R

Type R Thermocouple

Type R Thermocouple
Data and Polynomial


  • Description
    Pt(13%)-Rh / Pt
  • 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 = 0.12959

      v1 = 1.9420

      v2 = 12.687

      c =

         -2.9783e+00   -1.1534e-08   -1.6007e-06

          2.8649e+01   
      1.0740e-06    2.7281e-04

         -1.1740e+02   -4.2822e-05   -2.0812e-02

          2.6821e+02   
      9.8167e-04    9.3604e-01

         -3.7755e+02   -1.4596e-02   -2.7491e+01

          3.4710e+02   
      1.4984e-01    5.5096e+02

         -2.2683e+02   -1.0929e+00   -7.6321e+03

          1.3035e+02   
      5.6847e+00    7.2164e+04

         -9.3397e+01   -2.2016e+01   -4.4578e+05

          1.8887e+02   
      1.5152e+02    1.6248e+06

         -1.6514e-02    1.1243e+01 
      -2.6531e+06







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

      e = 0.00057212

      c =

         -2.6125e-22

          5.7164e-20

          4.5413e-18

         -1.9955e-15

          1.3374e-13

          3.0986e-12

         -4.6068e-10

         -1.9974e-08

          1.4302e-05

          5.2867e-03

          3.1372e-05







      type_r temperature->mV curve fit

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