使用镍铬-镍硅热电偶,其基准接点为30 ℃ ,测温接点为400 ℃时的温差电动势为多少?若仍使用该热电偶,测得某接点的温差电动势为10.275mV,则被测接点的温度为多少?镍铬-镍硅热电偶分度表 (参考端温度为0℃)工作端温度/℃102030405060708090热电动势/mV0.0000.3970.7981.2031.6112.0222.4362.8503.2663.6811004.0954.5084.9195.3275.7336.1376.5396.9397.3387.7372008.1378.5378.9389.3419.74510.15110.56010.96911.38111.79330012.20712.62313.03913.45613.87414.29214.71215.13215.55215.97440016.39516.81817.24117.66418.08818.51318.93819.36319.78820.21450020.64021.06621.49321.91922.34622.77223.19823.62424.05024.476

使用镍铬-镍硅热电偶,其基准接点为30 ℃ ,测温接点为400 ℃时的温差电动势为多少?若仍使用该热电偶,测得某接点的温差电动势为10.275mV,则被测接点的温度为多少?

镍铬-镍硅热电偶分度表 (参考端温度为0℃)

工作端温度/℃

10

20

30

40

50

60

70

80

90

热电动势/mV

0.000

0.397

0.798

1.203

1.611

2.022

2.436

2.850

3.266

3.681

100

4.095

4.508

4.919

5.327

5.733

6.137

6.539

6.939

7.338

7.737

200

8.137

8.537

8.938

9.341

9.745

10.151

10.560

10.969

11.381

11.793

300

12.207

12.623

13.039

13.456

13.874

14.292

14.712

15.132

15.552

15.974

400

16.395

16.818

17.241

17.664

18.088

18.513

18.938

19.363

19.788

20.214

500

20.640

21.066

21.493

21.919

22.346

22.772

23.198

23.624

24.050

24.476