{"id":3303,"date":"2023-05-02T06:36:16","date_gmt":"2023-05-02T06:36:16","guid":{"rendered":"https:\/\/thermibel.be\/faq\/hoe-kunnen-we-temperatuur-omzetten-in-spanning\/"},"modified":"2023-06-29T06:05:38","modified_gmt":"2023-06-29T06:05:38","slug":"hoe-kunnen-we-temperatuur-omzetten-in-spanning","status":"publish","type":"faq","link":"https:\/\/thermibel.be\/nl\/faq\/hoe-kunnen-we-temperatuur-omzetten-in-spanning\/","title":{"rendered":"Hoe kunnen we temperatuur omzetten in spanning?"},"content":{"rendered":"\n

Het is, als het ware, de wederkerige of inverse functie van de conversievergelijking van een spanning in temperatuur:<\/p>\n\n\n\n

Voor alle types van thermokoppels (behalve K tot t>0\u00b0C), hebben we:<\/p>\n\n\n\n

$$ V(mV) = \\mathop \\sum \\limits_{i = 0}^n {\\left( {{t_{90}}} \\right)^i} $$<\/p>\n\n\n\n

Voor thermokoppels van het type K met temperaturen hoger dan 0\u00b0C, hebben we:<\/p>\n\n\n\n

$$ V\\left( {mV} \\right) = \\mathop \\sum \\limits_{i = 0}^n {\\left( {{t_{90}}} \\right)^i} + {a_0}{e^{{a_1}{{\\left( {{t_{90}} – {a_2}} \\right)}^2}}} $$<\/em><\/p>\n\n\n\n

Ci = Co\u00ebffici\u00ebnten van C0 tot Cn<\/p>\n\n\n\n

t90 = Temperatuur van het thermokoppel in \u00b0C<\/p>\n\n\n\n

a0 tot a2 = Specifieke exponentieelco\u00ebffici\u00ebnten enkel voor thermokoppels van het type K en voor temperaturen hoger dan 0 \u00b0C<\/p>\n\n\n\n

e = constante van de natuurlijke logaritmen: 2.71828…<\/p>\n\n\n\n

Voorbeeld van co\u00ebffici\u00ebnten voor thermokoppels van het type K<\/strong><\/strong><\/td><\/tr>
Temperatuur (\u00b0C)<\/strong><\/strong><\/td>-270 tot 0<\/td>0 tot 1372<\/td><\/tr>
c0<\/sub><\/strong><\/strong><\/td>0<\/td>-0.176004136860e-1<\/td><\/tr>
c1<\/sub><\/strong><\/strong><\/td>0.394501280250e-1<\/td>0.389212049750e-1<\/td><\/tr>
c2<\/sub><\/strong><\/strong><\/td>0.236223735980e-4<\/td>0.185587700320e-4<\/td><\/tr>
c3<\/sub><\/strong><\/strong><\/td>-0.328589067840e-6<\/td>-0.994575928740e-7<\/td><\/tr>
c4<\/sub><\/strong><\/strong><\/td>-0.499048287770e-8<\/td>0.318409457190e-9<\/td><\/tr>
c5<\/sub><\/strong><\/strong><\/td>-0.675090591730e-10<\/td>-0.560728448890e-12<\/td><\/tr>
c6<\/sub><\/strong><\/strong><\/td>-0.574103274280e-12<\/td>0.560750590590e-15<\/td><\/tr>
c7<\/sub><\/strong><\/strong><\/td>-0.310888728940e-14<\/td>-0.320207200030e-18<\/td><\/tr>
c8<\/sub><\/strong><\/strong><\/td>-0.104516093650e-16<\/td>0.971511471520e-22<\/td><\/tr>
c9<\/sub><\/strong><\/strong><\/td>-0.198892668780e-19<\/td>-0.121047212750e-25<\/td><\/tr>
c10<\/sub><\/strong><\/strong><\/td>-0.163226974860e-22<\/td> <\/td><\/tr>
Exponentieelco\u00ebffici\u00ebnten voor temperaturen hoger dan 0 \u00b0C<\/strong><\/strong><\/td><\/tr>
a0<\/sub><\/strong><\/strong><\/td>0.1185976<\/td><\/tr>
a1<\/sub><\/strong><\/strong><\/td>-0.1183432e-3<\/td><\/tr>
a2<\/sub><\/strong><\/strong><\/td>0.1269686e+3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n


SPANNING VAN VERSCHILLENDE THERMOKOPPELS VOOR EEN TEMPERATUUR VAN 350 \u00b0C<\/strong><\/p>\n\n\n\n

Spanning berekend in mV<\/strong><\/strong><\/td><\/tr>
Type<\/strong><\/td>Per tabel
ITS-90<\/strong><\/td>		Spanning<\/strong><\/td>Afwijking
in %<\/strong><\/td><\/tr>
B<\/td> 0,596<\/td> 0,596<\/td>-0,018<\/td><\/tr>
E<\/td>24,964<\/td>24,964<\/td>0,001<\/td><\/tr>
J<\/td>19,090<\/td>19,090<\/td>0,002<\/td><\/tr>
K<\/td>14,293<\/td>14,293<\/td>0,001<\/td><\/tr>
N<\/td>11,136<\/td>11,136<\/td>0,002<\/td><\/tr>
R<\/td> 2,896<\/td> 2,896<\/td>0,007<\/td><\/tr>
S<\/td> 2,786<\/td> 2,786<\/td>-0,008<\/td><\/tr>
T<\/td>17,819<\/td>17,819<\/td>-0,002<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"featured_media":0,"template":"","format":"standard","class_list":["post-3303","faq","type-faq","status-publish","format-standard","hentry"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t