So, ich habe jetzt nochmals eine Messreihe gemacht und ähnliche Ergebnisse rausbekommen
Code
98.500 °C 1.15196533 V 1865 Count
98.437 °C 1.15196533 V 1867 Count
98.500 °C 1.15196533 V 1868 Count
98.500 °C 1.15258301 V 1868 Count
98.500 °C 1.15320068 V 1866 Count
98.500 °C 1.15320068 V 1869 Count
98.312 °C 1.15381836 V 1867 Count
98.500 °C 1.15381836 V 1868 Count
96.312 °C 1.16987793 V 1895 Count
94.687 °C 1.17914307 V 1909 Count
88.562 °C 1.21249756 V 1963 Count
83.812 °C 1.24214600 V 2011 Count
79.625 °C 1.26747070 V 2052 Count
76.375 °C 1.28847168 V 2086 Count
73.375 °C 1.30700195 V 2115 Count
70.625 °C 1.32738525 V 2149 Count
68.062 °C 1.34406250 V 2177 Count
65.812 °C 1.35950439 V 2201 Count
63.437 °C 1.36012207 V 2201 Count
64.000 °C 1.37124023 V 2220 Count
62.250 °C 1.38359375 V 2241 Count
60.562 °C 1.39532959 V 2258 Count
59.125 °C 1.40459473 V 2274 Count
57.875 °C 1.41509521 V 2291 Count
56.500 °C 1.42312500 V 2306 Count
55.187 °C 1.43424316 V 2322 Count
54.062 °C 1.44289062 V 2336 Count
53.062 °C 1.45030273 V 2348 Count
51.937 °C 1.45833252 V 2361 Count
50.875 °C 1.46512695 V 2371 Count
50.062 °C 1.47192139 V 2382 Count
49.125 °C 1.47995117 V 2396 Count
48.187 °C 1.48489258 V 2404 Count
47.437 °C 1.49106934 V 2413 Count
46.750 °C 1.49601074 V 2423 Count
45.937 °C 1.50156982 V 2432 Count
45.250 °C 1.50651123 V 2440 Count
44.500 °C 1.51268799 V 2450 Count
43.875 °C 1.51701172 V 2457 Count
43.250 °C 1.52195312 V 2465 Count
42.625 °C 1.52627686 V 2472 Count
42.062 °C 1.53121826 V 2480 Count
41.500 °C 1.53615967 V 2487 Count
40.937 °C 1.54048340 V 2494 Count
40.437 °C 1.54357178 V 2500 Count
39.937 °C 1.54789551 V 2507 Count
39.375 °C 1.55283691 V 2513 Count
38.937 °C 1.55654297 V 2520 Count
38.437 °C 1.55901367 V 2526 Count
38.000 °C 1.56333740 V 2531 Count
37.562 °C 1.56519043 V 2535 Count
37.125 °C 1.56951416 V 2541 Count
36.687 °C 1.57383789 V 2547 Count
36.312 °C 1.57569092 V 2552 Count
35.937 °C 1.58001465 V 2556 Count
35.562 °C 1.58248535 V 2562 Count
35.187 °C 1.58433838 V 2565 Count
34.875 °C 1.58804443 V 2572 Count
34.500 °C 1.58927979 V 2574 Count
34.187 °C 1.59298584 V 2579 Count
33.812 °C 1.59545654 V 2584 Count
33.562 °C 1.59854492 V 2588 Count
33.250 °C 1.60163330 V 2593 Count
32.937 °C 1.60348633 V 2595 Count
32.687 °C 1.60595703 V 2599 Count
32.437 °C 1.60657471 V 2603 Count
32.125 °C 1.60966309 V 2606 Count
31.875 °C 1.61089844 V 2608 Count
31.625 °C 1.61398682 V 2614 Count
31.375 °C 1.61460449 V 2615 Count
31.125 °C 1.61831055 V 2620 Count
30.875 °C 1.62016357 V 2623 Count
30.687 °C 1.62139893 V 2624 Count
30.437 °C 1.62263428 V 2629 Count
30.187 °C 1.62510498 V 2631 Count
30.000 °C 1.62572266 V 2636 Count
29.812 °C 1.62695801 V 2634 Count
29.562 °C 1.63004639 V 2640 Count
29.437 °C 1.63128174 V 2642 Count
29.187 °C 1.63313477 V 2643 Count
29.000 °C 1.63498779 V 2647 Count
28.875 °C 1.63622314 V 2649 Count
28.687 °C 1.63869385 V 2653 Count
28.500 °C 1.63992920 V 2655 Count
28.312 °C 1.64054687 V 2657 Count
28.125 °C 1.64239990 V 2658 Count
28.000 °C 1.64301758 V 2660 Count
27.812 °C 1.64425293 V 2663 Count
27.687 °C 1.64672363 V 2665 Count
27.500 °C 1.64734131 V 2668 Count
27.375 °C 1.64857666 V 2669 Count
27.187 °C 1.65042969 V 2671 Count
27.062 °C 1.65104736 V 2673 Count
26.937 °C 1.65228271 V 2676 Count
26.812 °C 1.65290039 V 2676 Count
26.687 °C 1.65475342 V 2679 Count
26.500 °C 1.65537109 V 2680 Count
26.375 °C 1.65660645 V 2682 Count
26.125 °C 1.65784180 V 2684 Count
26.250 °C 1.65845947 V 2684 Count
26.000 °C 1.65969482 V 2688 Count
25.875 °C 1.66031250 V 2690 Count
25.750 °C 1.66093018 V 2689 Count
25.500 °C 1.66340088 V 2693 Count
25.687 °C 1.66340088 V 2693 Count
25.375 °C 1.66401855 V 2694 Count
25.187 °C 1.66648926 V 2697 Count
25.312 °C 1.66648926 V 2698 Count
25.062 °C 1.66834229 V 2701 Count
24.937 °C 1.66957764 V 2703 Count
24.687 °C 1.66957764 V 2705 Count
24.875 °C 1.67019531 V 2704 Count
24.750 °C 1.67081299 V 2705 Count
39.000 °C 1.67204834 V 2706 Count
24.562 °C 1.67204834 V 2707 Count
24.375 °C 1.67328369 V 2709 Count
24.500 °C 1.67328369 V 2709 Count
24.250 °C 1.67390137 V 2711 Count
24.187 °C 1.67451904 V 2712 Count
24.125 °C 1.67513672 V 2712 Count
24.000 °C 1.67575439 V 2714 Count
23.875 °C 1.67698975 V 2715 Count
23.937 °C 1.67698975 V 2716 Count
23.687 °C 1.67760742 V 2719 Count
23.812 °C 1.67884277 V 2718 Count
23.625 °C 1.68007812 V 2720 Count
23.562 °C 1.68069580 V 2721 Count
23.500 °C 1.68069580 V 2722 Count
23.375 °C 1.68131348 V 2722 Count
23.437 °C 1.68131348 V 2723 Count
23.312 °C 1.68254883 V 2724 Count
23.250 °C 1.68316650 V 2725 Count
23.187 °C 1.68316650 V 2727 Count
23.062 °C 1.68378418 V 2727 Count
23.125 °C 1.68501953 V 2726 Count
22.937 °C 1.68563721 V 2729 Count
22.875 °C 1.68563721 V 2731 Count
23.000 °C 1.68625488 V 2730 Count
22.750 °C 1.68687256 V 2730 Count
22.812 °C 1.68749023 V 2730 Count
22.625 °C 1.68810791 V 2733 Count
22.687 °C 1.68810791 V 2733 Count
22.437 °C 1.68872559 V 2734 Count
22.562 °C 1.68934326 V 2734 Count
22.500 °C 1.68934326 V 2735 Count
22.375 °C 1.68996094 V 2736 Count
22.437 °C 1.68996094 V 2737 Count
22.250 °C 1.69119629 V 2738 Count
22.312 °C 1.69119629 V 2738 Count
22.125 °C 1.69181396 V 2739 Count
22.187 °C 1.69181396 V 2739 Count
22.250 °C 1.69243164 V 2738 Count
22.125 °C 1.69243164 V 2740 Count
22.062 °C 1.69304932 V 2741 Count
22.000 °C 1.69366699 V 2741 Count
22.000 °C 1.69366699 V 2741 Count
21.812 °C 1.69366699 V 2742 Count
21.875 °C 1.69366699 V 2743 Count
21.812 °C 1.69366699 V 2745 Count
21.937 °C 1.69428467 V 2743 Count
21.937 °C 1.69490234 V 2743 Count
21.750 °C 1.69490234 V 2744 Count
21.750 °C 1.69613770 V 2746 Count
21.625 °C 1.69613770 V 2747 Count
21.687 °C 1.69613770 V 2747 Count
21.562 °C 1.69613770 V 2748 Count
21.625 °C 1.69675537 V 2747 Count
21.687 °C 1.69675537 V 2747 Count
21.562 °C 1.69737305 V 2748 Count
21.562 °C 1.69799072 V 2748 Count
21.500 °C 1.69799072 V 2749 Count
21.437 °C 1.69860840 V 2749 Count
21.437 °C 1.69860840 V 2750 Count
21.437 °C 1.69860840 V 2750 Count
21.500 °C 1.69860840 V 2750 Count
21.375 °C 1.69922607 V 2751 Count
21.250 °C 1.69922607 V 2753 Count
21.312 °C 1.69984375 V 2751 Count
21.375 °C 1.69984375 V 2751 Count
21.250 °C 1.69984375 V 2752 Count
21.312 °C 1.69984375 V 2752 Count
21.187 °C 1.69984375 V 2753 Count
21.250 °C 1.69984375 V 2753 Count
21.312 °C 1.69984375 V 2753 Count
21.187 °C 1.70046143 V 2753 Count
21.062 °C 1.70046143 V 2754 Count
21.125 °C 1.70107910 V 2753 Count
21.187 °C 1.70107910 V 2754 Count
21.062 °C 1.70169678 V 2755 Count
21.187 °C 1.70169678 V 2755 Count
21.000 °C 1.70169678 V 2756 Count
21.062 °C 1.70169678 V 2756 Count
20.937 °C 1.70231445 V 2755 Count
21.062 °C 1.70231445 V 2755 Count
21.000 °C 1.70231445 V 2756 Count
20.875 °C 1.70231445 V 2758 Count
20.812 °C 1.70231445 V 2759 Count
20.875 °C 1.70293213 V 2757 Count
20.937 °C 1.70293213 V 2757 Count
20.937 °C 1.70293213 V 2757 Count
20.750 °C 1.70354980 V 2758 Count
20.812 °C 1.70354980 V 2759 Count
20.687 °C 1.70416748 V 2756 Count
20.750 °C 1.70416748 V 2758 Count
20.875 °C 1.70416748 V 2758 Count
20.687 °C 1.70416748 V 2759 Count
20.750 °C 1.70416748 V 2759 Count
20.812 °C 1.70416748 V 2759 Count
20.812 °C 1.70416748 V 2759 Count
20.687 °C 1.70478516 V 2761 Count
20.687 °C 1.70602051 V 2761 Count
20.625 °C 1.70663818 V 2762 Count
20.187 °C 1.70725586 V 2764 Count
20.187 °C 1.70725586 V 2764 Count
20.125 °C 1.70725586 V 2765 Count
20.187 °C 1.70725586 V 2765 Count
45.687 °C 1.76469971 V 2857 Count
19.187 °C 1.77581787 V 2876 Count
9.875 °C 1.82276123 V 2952 Count
3.500 °C 1.86661621 V 3023 Count
1.937 °C 1.87773437 V 3041 Count
0.875 °C 1.88144043 V 3047 Count
2.000 °C 1.88205811 V 3049 Count
1.375 °C 1.88267578 V 3047 Count
0.875 °C 1.88267578 V 3048 Count
1.187 °C 1.88514648 V 3052 Count
0.875 °C 1.88699951 V 3055 Count
0.500 °C 1.88885254 V 3059 Count
0.562 °C 1.89070557 V 3060 Count
0.625 °C 1.89070557 V 3061 Count
0.687 °C 1.89070557 V 3061 Count
Alles anzeigen
Die Werte aus der 1. Spalte wurden mit einem DS18x ermittelt, die beiden anderen Werte aus o.g. Python Script
Genau 100°C hat der DS18x nicht angezeigt, obwohl das Wasser sehr stark gekocht hat, aber auf das Grad genau muss das ja auch nicht sein.
Umgesetzt auf die neuen Werte sind das bei 0°C 3061 Count und bei 100°C 1865 Count
Gemäß Deiner Formel oben ergibt das:
(1865 - 3061) / 100 = -11,96
Temperatur = (3061 - Messwert in Count) / 11,96
Passt leider irgendwie nicht, da kommen meistens Differenzen von 5-7° raus
Was mach ich jetzt falsch?
Danke
Gruß Fine