Thermocouple IR y x 921 918 4.3 2.5 935 934 1.5 3 916 924 1.8 3.5 920 921 4.9 4 940 945 4.2 4.5 936 930 4.8 5 925 919 5.8 5.5 940 943 6.2 6 933 932 7 6.5 927 935 7.9 7