PT1000 C程序 单片机 分度表 程序

python数据处理：

import numpy as np  A = 0.0038623139728 B = -0.00000065314932626 t1 = np.asarray(range(-150, 152, 1)) print(t1) t = t1 - 0.5 print(t) Rt = 1000 * (1   A * t   B * t * t) print(Rt) RT1 = list(map(lambda x: str(int(x)), Rt.tolist()))  print(",".join(list(map(str, RT1)))) print(len(RT1))   

单片机函数移植：

 #include    int find_Rt[] = { 
        407, 412,  416,  420,  424, 428,  432,  436,  440, 444 448, 452, 456, 460, 464, 468, 472, 476, 480, 484, 488, 492, 496, 500, 504, 509, 513, 517, 521, 525, 529, 533, 537, 541, 545, 549, 553, 557, 561, 565,569, 573, 577, 581, 585, 589, 593, 597, 601, 605, 609, 613, 617, 621, 625, 629, 633, 637, 641, 645, 649,653, 657, 661, 664, 668, 672, 676, 680, 684, 688, 692, 696, 700, 704, 708, 712, 716, 720, 724, 728, 732,736, 740, 744, 748, 752, 756, 759, 763, 767, 771, 775, 779, 783, 787, 791, 795, 799, 803, 807, 811, 815,818, 822, 826, 830, 834, 838, 842, 846, 850, 854, 858, 862, 865, 869, 873, 877, 881, 885, 889, 893, 897,901, 904, 908, 912, 916, 920, 924, 928, 932, 936, 939, 943, 947, 951, 955, 959, 963, 967, 970, 974, 978,982, 986, 990, 994, 998, 1001, 1005, 1009, 1013, 1017, 1021, 1025, 1028, 1032, 1036, 1040, 1044, 1048, 1052, 1055, 1059, 1063, 1067, 1071, 1075, 1078, 1082, 1086, 1090, 1094, 1098, 1101, 1105, 1109, 1113, 1117, 1121, 1124, 1128, 1132, 1136, 1140, 1143, 1147, 1151, 1155, 1159, 1162, 1166, 1170, 1174, 1178, 1181, 1185, 1189, 1193, 1197, 1200, 1204, 1208, 1212, 1216, 1219, 1223, 1227, 1231, 1235, 1238, 1242, 1246, 1250, 1253, 1257, 1261, 1265, 1269, 1272, 1276, 1280, 1284, 1287, 1291, 1295, 1299, 1302, 1306, 1310, 1314, 1317, 1321, 1325, 1329, 1332, 1336, 1340, 1344, 1347, 1351, 1355, 1359, 1362, 1366, 1370, 1374, 1377, 1381, 1385, 1389, 1392, 1396, 1400, 1403, 1407, 1411, 1415, 1418, 1422, 1426, 1429, 1433, 1437, 1441, 1444, 1448, 1452, 1455, 1459, 1463, 1467, 1470, 1474, 1478, 1481, 1485, 1489, 1492, 1496, 1500, 1503, 1507, 1511, 1515, 1518, 1522, 1526, 1529, 1533, 1537, 1540, 1544, 1548, 1551, 1555, 1559, 1562, 1566 }; int get_temp( int Rt ) { 
         //获取温度的函数，传入参数是PT100的电阻值 //只适合获取-150摄氏度到150摄氏度的情况，别的情况需要改分度表 int wendu; int k = 0; while ( k < 301 ) { 
         if ( Rt < find_Rt[k] ) { 
         wendu = -150 + k; break; } k++; } if ( k == 301 )//此时温度会大于150摄氏度 直接当150摄氏度处理 { 
         wendu = -150 + k; } return(wendu); } int main() { 
         /* 我的第一个 C 程序 */ printf( "%d \n", get_temp( 1000 ) ); return(0); } 

想要精度0.1的：

import numpy as np

A = 0.0038623139728
B = -0.00000065314932626
t1 = np.asarray(range(-1499, 1502, 1))
t1 = t1*0.1
print(t1)
t = t1 - 0.05
print(t)
Rt = 1000 * (1 + A * t + B * t * t)
print(Rt)
RT1 = list(map(lambda x: str(round(x,3)), Rt.tolist()))

print(",".join(list(map(str, RT1))))
print(len(RT1))

#include 


float find_Rt[] = { 
        406.16, 406.566, 406.972, 407.377, 407.783, 408.189, 408.595, 409.0, 409.406, 409.812, 410.217, 410.623, 411.029, 411.435, 411.84, 412.246, 412.651, 413.057, 413.463, 413.868, 414.274, 414.679, 415.085, 415.49, 415.896, 416.301, 416.707, 417.112, 417.518, 417.923, 418.329, 418.734, 419.139, 419.545, 419.95, 420.356, 420.761, 421.166, 421.572, 421.977, 422.382, 422.788, 423.193, 423.598, 424.003, 424.409, 424.814, 425.219, 425.624, 426.029, 426.435, 426.84, 427.245, 427.65, 428.055, 428.46, 428.865, 429.27, 429.676, 430.081, 430.486, 430.891, 431.296, 431.701, 432.106, 432.511, 432.916, 433.321, 433.725, 434.13, 434.535, 434.94, 435.345, 435.75, 436.155, 436.56, 436.964, 437.369, 437.774, 438.179, 438.584, 438.988, 439.393, 439.798, 440.203, 440.607, 441.012, 441.417, 441.821, 442.226, 442.631, 443.035, 443.44, 443.845, 444.249, 444.654, 445.058, 445.463, 445.868, 446.272, 446.677, 447.081, 447.486, 447.89, 448.295, 448.699, 449.103, 449.508, 449.912, 450.317, 450.721, 451.125, 451.53, 451.934, 452.338, 452.743, 453.147, 453.551, 453.956, 454.36, 454.764, 455.168, 455.573, 455.977, 456.381, 456.785, 457.189, 457.594, 457.998, 458.402, 458.806, 459.21, 459.614, 460.018, 460.422, 460.827, 461.231, 461.635, 462.039, 462.443, 462.847, 463.251, 463.655, 464.059, 464.463, 464.866, 465.27, 465.674, 466.078, 466.482, 466.886, 467.29, 467.694, 468.097, 468.501, 468.905, 469.309, 469.713, 470.116, 470.52, 470.924, 471.328, 471.731, 472.135, 472.539, 472.942, 473.346, 473.75, 474.153, 474.557, 474.96, 475.364, 475.768, 476.171, 476.575, 476.978, 477.382, 477.785, 478.189, 478.592, 478.996, 479.399, 479.803, 480.206, 480.61, 481.013, 481.416, 481.82, 482.223, 482.627, 483.03, 483.433, 483.836, 484.24, 484.643, 485.046, 485.45, 485.853, 486.256, 486.659, 487.063, 487.466, 487.869, 488.272, 488.675, 489.078, 489.482, 489.885, 490.288, 490.691, 491.094, 491.497, 491.9, 492.303, 492.706, 493.109, 493.512, 493.915, 494.318, 494.721, 495.124, 495.527, 495.93, 496.333, 496.736, 497.139, 497.542, 497.944, 498.347, 498.75, 499.153, 499.556, 499.958, 500.361, 500.764, 501.167, 501.57, 501.972, 502.375, 502.778, 503.18, 503.583, 503.986, 504.388, 504.791, 505.194, 505.596, 505.999, 506.401, 506.804, 507.207, 507.609, 508.012, 508.414, 508.817, 509.219, 509.622, 510.024, 510.427, 510.829, 511.231, 511.634, 512.036, 512.439, 512.841, 513.243, 513.646, 514.048, 514.45, 514.853, 515.255, 515.657, 516.06, 516.462, 516.864, 517.266, 517.669, 518.071, 518.473, 518.875, 519.277, 519.679, 520.082, 520.484, 520.886, 521.288, 521.69, 522.092, 522.494, 522.896, 523.298, 523.7, 524.102, 524.504, 524.906, 525.308, 525.71, 526.112, 526.514, 526.916, 527.318, 527.72, 528.122, 528.524, 528.925, 529.327, 529.729, 530.131, 530.533, 530.934, 531.336, 531.738, 532.14, 532.542, 532.943, 533.345, 533.747, 534.148, 534.55, 534.952, 535.353, 535.755, 536.157, 536.558, 536.96, 537.361, 537.763, 538.164, 538.566, 538.968, 539.369, 539.771, 540.172, 540.574, 540.975, 541.376, 541.778, 542.179, 542.581, 542.982, 543.383, 543.785, 544.186, 544.588, 544.989, 545.39, 545.792, 546.193, 546.594, 546.995, 547.397, 547.798, 548.199, 548.6, 549.002, 549.403, 549.804, 550.205, 550.606, 551.007, 551.408, 551.81, 552.211, 552.612, 553.013, 553.414, 553.815, 554.216, 554.617, 555.018, 555.419, 555.82, 556.221, 556.622, 557.023, 557.424, 557.825, 558.226, 558.626, 559.027, 559.428, 559.829, 560.23, 560.631, 561.031, 561.432, 561.833, 562.234, 562.635, 563.035, 563.436, 563.837, 564.237, 564.638, 565.039, 565.44, 565.84, 566.241, 566.641, 567.042, 567.443, 567.843, 568.244, 568.644, 569.045, 569.445, 569.846, 570.246, 570.647, 571.047, 571.448, 571.848, 572.249, 572.649, 573.05, 573.45, 573.85, 574.251, 574.651, 575.052, 575.452, 575.852, 576.253, 576.653, 577.053, 577.453, 577.854, 578.254, 578.654, 579.054, 579.455, 579.855, 580.255, 580.655, 581.055, 581.455, 581.856, 582.256, 582.656, 583.056, 583.456, 583.856, 584.256, 584.656, 585.056, 585.456, 585.856, 586.256, 586.656, 587.056, 587.456, 587.856, 588.256, 588.656, 589.056, 589.456, 589.855, 590.255, 590.655, 591.055, 591.455, 591.855, 592.254, 592.654, 593.054, 593.454, 593.853, 594.253, 594.653, 595.053, 595.452, 595.852, 596.252, 596.651, 597.051, 597.45, 597.85, 598.25, 598.649, 599.049, 599.448, 599.848, 600.247, 600.647, 601.046, 601.446, 601.845, 602.245, 602.644, 603.044, 603.443, 603.843, 604.242, 604.641, 605.041, 605.44, 605.839, 606.239, 606.638, 607.037, 607.437, 607.836, 608.235, 608.635, 609.034, 609.433, 609.832, 610.231, 610.631, 611.03, 611.429, 611.828, 612.227, 612.626, 613.026, 613.425, 613.824, 614.223, 614.622, 615.021, 615.42, 615.819, 616.218, 616.617, 617.016, 617.415, 617.814, 618.213, 618.612, 619.011, 619.41, 619.808, 620.207, 620.606, 621.005, 621.404, 621.803, 622.201, 622.6, 622.999, 623.398, 623.797, 624.195, 624.594, 624.993, 625.391, 625.79, 626.189, 626.588, 626.986, 627.385, 627.783, 628.182, 628.581, 628.979, 629.378, 629.776, 630.175, 630.573, 630.972, 631.371, 631.769, 632.167, 632.566, 632.964, 633.363, 633.761, 634.16, 634.558, 634.957, 635.355, 635.753, 636.152, 636.55, 636.948, 637.347, 637.745, 638.143, 638.541, 638.94, 639.338, 639.736, 640.134, 640.533, 640.931, 641.329, 641.727, 642.125, 642.524, 642.922, 643.32, 643.718, 644.116, 644.514, 644.912, 645.31, 645.708, 646.106, 646.504, 646.902, 647.3, 647.698, 648.096, 648.494, 648.892, 649.29, 649.688, 650.086, 650.484, 650.882, 651.279, 651.677, 652.075, 652.473, 652.871, 653.268, 653.666, 654.064, 654.462, 654.86, 655.257, 655.655, 656.053, 656.45, 656.848, 657.246, 657.643, 658.041, 658.439, 658.836, 659.234, 659.631, 660.029, 660.427, 660.824, 661.222, 661.619, 662.017, 662.414, 662.812, 663.209, 663.606, 664.004, 664.401, 664.799, 665.196, 665.594, 665.991, 666.388, 666.786, 667.183, 667.58, 667.978, 668.375, 668.772, 669.169, 669.567, 669.964, 670.361, 670.758, 671.156, 671.553, 671.95, 672.347, 672.744, 673.141, 673.539, 673.936, 674.333, 674.73, 675.127, 675.524, 675.921, 676.318, 676.715, 677.112, 677.509, 677.906, 678.303, 678.7, 679.097, 679.494, 679.891, 680.288, 680.685, 681.081, 681.478, 681.875, 682.272, 682.669, 683.066, 683.462, 683.859, 684.256, 684.653, 685.05, 685.446, 685.843, 686.24, 686.636, 687.033, 687.43, 687.826, 688.223, 688.62, 689.016, 689.413, 689.809, 690.206, 690.603, 690.999, 691.396, 691.792, 692.189, 692.585, 692.982, 693.378, 693.775, 694.171, 694.568, 694.964, 695.36, 695.757, 696.153, 696.55, 696.946, 697.342, 697.739, 698.135, 698.531, 698.927, 699.324, 699.72, 700.116, 700.512, 700.909, 701.305, 701.701, 702.097, 702.493, 702.89, 703.286, 703.682, 704.078, 704.474, 704.87, 705.266, 705.662, 706.058, 706.454, 706.85, 707.247, 707.643, 708.039, 708.434, 708.83, 709.226, 709.622, 710.018, 710.414, 710.81, 711.206, 711.602, 711.998, 712.394, 712.789, 713.185, 713.581, 713.977, 714.373, 714.768, 715.164, 715.56, 715.956, 716.351, 716.747, 717.143, 717.538, 717.934, 718.33, 718.725, 719.121, 719.517, 719.912, 720.308, 720.703, 721.099, 721.494, 721.89, 722.285, 722.681, 723.076, 723.472, 723.867, 724.263, 724.658, 725.054, 725.449, 725.845, 726.24, 726.635, 727.031, 727.426, 727.821, 728.217, 728.612, 729.007, 729.403, 729.798, 730.193, 730.588, 730.984, 731.379, 731.774, 732.169, 732.564, 732.96, 733.355, 733.75, 734.145, 734.54, 734.935, 735.33, 735.725, 736.12, 736.515, 736.91, 737.305, 737.7, 738.095, 738.49, 738.885, 739.28, 739.675, 740.07, 740.465, 740.86, 741.255, 741.65, 742.045, 742.44, 742.834, 743.229, 743.624, 744.019, 744.414, 744.808, 745.203, 745.598, 745.993, 746.387, 746.782, 747.177, 747.571, 747.966, 748.361, 748.755, 749.15, 749.545, 749.939, 750.334, 750.728, 751.123, 751.518, 751.912, 752.307, 752.701, 753.096, 753.49, 753.885, 754.279, 754.674, 755.068, 755.462, 755.857, 756.251, 756.646, 757.04, 757.434, 757.829, 758.223, 758.617, 759.012, 759.406, 759.8, 760.194, 760.589, 760.983, 761.377, 761.771, 762.166, 762.56, 762.954, 763.348, 763.742, 764.136, 764.531, 764.925, 765.319, 765.713, 766.107, 766.501, 766.895, 767.289, 767.683, 768.077, 768.471, 768.865, 769.259, 769.653, 770.047, 770.441, 770.835, 771.229, 771.622, 772.016, 772.41, 772.804, 773.198, 773.592, 773.985, 774.379, 774.773, 775.167, 775.561, 775.954, 776.348, 776.742, 777.135, 777.529, 777.923, 778.317, 778.71, 779.104, 779.497, 779.891, 780.285, 780.678, 781.072, 781.465, 781.859, 782.252, 782.646, 783.039, 783.433, 783.826, 784.22, 784.613, 785.007, 785.4, 785.794, 786.187, 786.58, 786.974, 787.367, 787.761, 788.154, 788.547, 788.941, 789.334, 789.727, 790.12, 790.514, 790.907, 791.3, 791.693, 792.087, 792.48, 792.873, 793.266, 793.659, 794.052, 794.446, 794.839, 795.232, 795.625, 796.018, 796.411, 796.804, 797.197, 797.59, 797.983, 798.376, 798.769, 799.162, 799.555, 799.948, 800.341, 800.734, 801.127, 801.52, 801.912, 802.305, 802.698, 803.091, 803.484, 803.877, 804.269, 804.662, 805.055, 805.448, 805.841, 806.233, 806.626, 807.019, 807.411, 807.804, 808.197, 808.589, 808.982, 809.375, 809.767, 810.16, 810.553, 810.945, 811.338, 811.73, 812.123, 812.515, 812.908, 813.3, 813.693, 814.085, 814.478, 814.87, 815.263, 815.655, 816.047, 816.44, 816.832, 817.225, 817.617, 818.009, 818.402, 818.794, 819.186, 819.579, 819.971, 820.363, 820.755, 821.148, 821.54, 821.932, 822.324, 822.716, 823.109, 823.501, 823.893, 824.285, 824.677, 825.069, 825.461, 825.853, 826.246, 826.638, 827.03, 827.422, 827.814, 828.206, 828.598, 828.99, 829.382, 829.774, 830.166, 830.557, 830.949, 831.341, 831.733, 832.125, 832.517, 832.909, 833.301, 833.692, 834.084, 834.476, 834.868, 835.26, 835.651, 836.043, 836.435, 836.827, 837.218, 837.61, 838.002, 838.393, 838.785, 839.177, 839.568, 839.96, 840.351, 840.743, 841.135, 841.526, 841.918, 842.309, 842.701, 843.092, 843.484, 843.875, 844.267, 844.658, 845.05, 845.441, 845.832, 846.224, 846.615, 847.007, 847.398, 847.789, 848.181, 848.572, 848.963, 849.355, 849.746, 850.137, 850.528, 850.92, 851.311, 851.702, 852.093, 852.485, 852.876, 853.267, 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float get_temp( float Rt )
{ 
       
	/* * 获取温度的函数，传入参数是PT100的电阻值 * 只适合获取-150摄氏度到150摄氏度的情况，别的情况需要改分度表 */
	float	wendu;
	int	k = 0;
	while ( k < 3001 )
	{ 
       
		if ( Rt < find_Rt[k] )
		{ 
       
			wendu = -150 + k * 0.1;
			break;
		}
		k++;
	}
	if ( k == 3001 ) /* 此时温度会大于150摄氏度 直接当150摄氏度处理 */
	{ 
       
		wendu = -150 + k;
	}
	return(wendu);
}


int main()
{ 
       
	/* 我的第一个 C 程序 */
	printf( "%.1f \n", get_temp( 406.8 ) );

	return(0);
}