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Thermocouple.cpp
00001 #include "thermocouple.h" 00002 00003 // http://srdata.nist.gov/its90/download/allcoeff.tab 00004 00005 Thermocouple::Thermocouple() {} 00006 Thermocouple::~Thermocouple() {} 00007 00008 float Thermocouple::lookup(const int32_t *lut, float voltage, uint16_t size, int16_t offset) 00009 { 00010 uint16_t first = 0; 00011 uint16_t last = size - 1; 00012 uint16_t middle = (first + last) / 2; 00013 int32_t integer_voltage = int32_t(voltage * 1000); 00014 while (first <= last) { 00015 if (lut[middle] < integer_voltage) 00016 first = middle + 1; 00017 else if (lut[middle] == integer_voltage) { 00018 return static_cast<float>(middle + offset); 00019 } else 00020 last = middle - 1; 00021 00022 middle = (first + last) / 2; 00023 } 00024 if (first > last) 00025 return static_cast<float>(first + offset); 00026 00027 return 0; // should never get here 00028 } 00029 00030 float Thermocouple::convert(float voltage, const thermocouple_poly_subrange range[], const int n) 00031 { 00032 int range_id = 0; 00033 float temperature = 0; 00034 for(range_id = 0 ; range_id < n; range_id++) { 00035 if(voltage > range[range_id].min_voltage_range && voltage <= range[range_id].max_voltage_range) 00036 break; 00037 } 00038 00039 for (int i = 0; i < range[range_id].n; i++) { 00040 temperature += (range[range_id].coef[i] * pow(10, range[range_id].power[i])) * pow(voltage, i); 00041 } 00042 return temperature; 00043 } 00044 00045 00046 00047 00048 const int Thermocouple_Type_B::inv_poly_size = 2; 00049 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_B::inv_poly[2] = { 00050 { 00051 0.000, 630.615,// characteristic curve for temp range between 0.000, and 630.615, 00052 {0.000000000000, -0.246508183460, 0.590404211710, -0.132579316360, 0.156682919010, -0.169445292400, 0.629903470940,}, 00053 { 0, -3, -5, -8, -11, -14, -18,}, 00054 7 00055 }, 00056 { 00057 630.615, 1820.000,// characteristic curve for temp range between 630.615, and 1820.000, 00058 { -0.389381686210, 0.285717474700, -0.848851047850, 0.157852801640, -0.168353448640, 0.111097940130, -0.445154310330, 0.989756408210, -0.937913302890,}, 00059 { 1, -1, -4, -6, -9, -12, -16, -20, -24,}, 00060 9 00061 } 00062 }; 00063 00064 float Thermocouple_Type_B::convert_inv(float temp) 00065 { 00066 return Thermocouple::convert(temp, inv_poly, inv_poly_size); 00067 } 00068 00069 float Thermocouple_Type_B::lookup_inv(float temp) 00070 { 00071 #ifdef TYPE_B_LUT 00072 if((temp + lut_offset) > lut_size) 00073 return lut[lut_size - 1]; 00074 else 00075 return lut[(uint16_t)temp + lut_offset]; 00076 #else 00077 /* NOT IMPLEMENTED */ 00078 return 0; 00079 #endif 00080 } 00081 const int Thermocouple_Type_B::poly_size = 2; 00082 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_B::poly[2] = { 00083 { 00084 0.291, 2.431, // characteristic curve for mV range between 0.291 and 2.431 00085 { 9.8423321, 6.9971500, -8.4765304, 1.0052644, -8.3345952, 4.5508542, -1.5523037, 2.9886750, -2.4742860,}, 00086 { 1, 2, 2, 3, 2, 2, 2, 1, 0,}, 00087 9 00088 }, 00089 { 00090 2.431, 13.820, // characteristic curve for mV range between 2.431 and 13.820 00091 { 2.1315071, 2.8510504, -5.2742887, 9.9160804, -1.2965303, 1.1195870, -6.0625199, 1.8661696, -2.4878585,}, 00092 { 2, 2, 1, 0, 0, -1, -3, -4, -6,}, 00093 9 00094 } 00095 }; 00096 00097 Thermocouple_Type_B::~Thermocouple_Type_B() 00098 { 00099 00100 } 00101 00102 float Thermocouple_Type_B::convert(float voltage) 00103 { 00104 return Thermocouple::convert(voltage, poly, poly_size); 00105 } 00106 00107 float Thermocouple_Type_B::lookup(float voltage) 00108 { 00109 #ifdef TYPE_B_LUT 00110 return Thermocouple::lookup(lut, voltage, lut_size, lut_offset); 00111 #else 00112 /* NOT IMPLEMENTED */ 00113 return 0; 00114 #endif 00115 } 00116 const int Thermocouple_Type_E::inv_poly_size = 2; 00117 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_E::inv_poly[2] = { 00118 { 00119 -270.000, 0.000,// characteristic curve for temp range between -270.000, and 0.000, 00120 {0.000000000000, 0.586655087080, 0.454109771240, -0.779980486860, -0.258001608430, -0.594525830570, -0.932140586670, -0.102876055340, -0.803701236210, -0.439794973910, -0.164147763550, -0.396736195160, -0.558273287210, -0.346578420130,}, 00121 { 0, -1, -4, -6, -7, -9, -11, -12, -15, -17, -19, -22, -25, -28,}, 00122 14 00123 }, 00124 { 00125 0.000, 1000.000,// characteristic curve for temp range between 0.000, and 1000.000, 00126 {0.000000000000, 0.586655087100, 0.450322755820, 0.289084072120, -0.330568966520, 0.650244032700, -0.191974955040, -0.125366004970, 0.214892175690, -0.143880417820, 0.359608994810,}, 00127 { 0, -1, -4, -7, -9, -12, -15, -17, -20, -23, -27,}, 00128 11 00129 } 00130 }; 00131 00132 float Thermocouple_Type_E::convert_inv(float temp) 00133 { 00134 return Thermocouple::convert(temp, inv_poly, inv_poly_size); 00135 } 00136 00137 float Thermocouple_Type_E::lookup_inv(float temp) 00138 { 00139 #ifdef TYPE_E_LUT 00140 if((temp + lut_offset) > lut_size) 00141 return lut[lut_size - 1]; 00142 else 00143 return lut[(uint16_t)temp + lut_offset]; 00144 #else 00145 /* NOT IMPLEMENTED */ 00146 return 0; 00147 #endif 00148 } 00149 const int Thermocouple_Type_E::poly_size = 2; 00150 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_E::poly[2] = { 00151 { 00152 -8.825, 0.000, // characteristic curve for mV range between -8.825 and 0.000 00153 { 0.0000000, 1.6977288, -4.3514970, -1.5859697, -9.2502871, -2.6084314, -4.1360199, -3.4034030, -1.1564890, 0.0000000,}, 00154 { 0, 1, -1, -1, -2, -2, -3, -4, -5, 0,}, 00155 10 00156 }, 00157 { 00158 0.000, 76.373, // characteristic curve for mV range between 0.000 and 76.373 00159 { 0.0000000, 1.7057035, -2.3301759, 6.5435585, -7.3562749, -1.7896001, 8.4036165, -1.3735879, 1.0629823, -3.2447087,}, 00160 { 0, 1, -1, -3, -5, -6, -8, -9, -11, -14,}, 00161 10 00162 } 00163 }; 00164 00165 Thermocouple_Type_E::~Thermocouple_Type_E() 00166 { 00167 00168 } 00169 00170 float Thermocouple_Type_E::convert(float voltage) 00171 { 00172 return Thermocouple::convert(voltage, poly, poly_size); 00173 } 00174 00175 float Thermocouple_Type_E::lookup(float voltage) 00176 { 00177 #ifdef TYPE_E_LUT 00178 return Thermocouple::lookup(lut, voltage, lut_size, lut_offset); 00179 #else 00180 /* NOT IMPLEMENTED */ 00181 return 0; 00182 #endif 00183 } 00184 const int Thermocouple_Type_J::inv_poly_size = 2; 00185 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_J::inv_poly[2] = { 00186 { 00187 -210.000, 760.000,// characteristic curve for temp range between -210.000, and 760.000, 00188 {0.000000000000, 0.503811878150, 0.304758369300, -0.856810657200, 0.132281952950, -0.170529583370, 0.209480906970, -0.125383953360, 0.156317256970,}, 00189 { 0, -1, -4, -7, -9, -12, -15, -18, -22,}, 00190 9 00191 }, 00192 { 00193 760.000, 1200.000,// characteristic curve for temp range between 760.000, and 1200.000, 00194 {0.296456256810, -0.149761277860, 0.317871039240, -0.318476867010, 0.157208190040, -0.306913690560,}, 00195 { 3, 1, -2, -5, -8, -12,}, 00196 6 00197 } 00198 }; 00199 00200 float Thermocouple_Type_J::convert_inv(float temp) 00201 { 00202 return Thermocouple::convert(temp, inv_poly, inv_poly_size); 00203 } 00204 00205 float Thermocouple_Type_J::lookup_inv(float temp) 00206 { 00207 #ifdef TYPE_J_LUT 00208 if((temp + lut_offset) > lut_size) 00209 return lut[lut_size - 1]; 00210 else 00211 return lut[(uint16_t)temp + lut_offset]; 00212 #else 00213 /* NOT IMPLEMENTED */ 00214 return 0; 00215 #endif 00216 } 00217 const int Thermocouple_Type_J::poly_size = 3; 00218 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_J::poly[3] = { 00219 { 00220 -8.095, 0.000, // characteristic curve for mV range between -8.095 and 0.000 00221 { 0.0000000, 1.9528268, -1.2286185, -1.0752178, -5.9086933, -1.7256713, -2.8131513, -2.3963370, -8.3823321,}, 00222 { 0, 1, 0, 0, -1, -1, -2, -3, -5,}, 00223 9 00224 }, 00225 { 00226 0.000, 42.919, // characteristic curve for mV range between 0.000 and 42.919 00227 { 0.000000, 1.978425, -2.001204, 1.036969, -2.549687, 3.585153, -5.344285, 5.099890, 0.000000,}, 00228 { 0, 1, -1, -2, -4, -6, -8, -10, 0,}, 00229 9 00230 }, 00231 { 00232 42.919, 69.553, // characteristic curve for mV range between 42.919 and 69.553 00233 { -3.11358187, 3.00543684, -9.94773230, 1.70276630, -1.43033468, 4.73886084, 0.00000000, 0.00000000, 0.00000000,}, 00234 { 3, 2, 0, -1, -3, -6, 0, 0, 0,}, 00235 9 00236 } 00237 }; 00238 00239 Thermocouple_Type_J::~Thermocouple_Type_J() 00240 { 00241 00242 } 00243 00244 float Thermocouple_Type_J::convert(float voltage) 00245 { 00246 return Thermocouple::convert(voltage, poly, poly_size); 00247 } 00248 00249 float Thermocouple_Type_J::lookup(float voltage) 00250 { 00251 #ifdef TYPE_J_LUT 00252 return Thermocouple::lookup(lut, voltage, lut_size, lut_offset); 00253 #else 00254 /* NOT IMPLEMENTED */ 00255 return 0; 00256 #endif 00257 } 00258 const int Thermocouple_Type_K::inv_poly_size = 2; 00259 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_K::inv_poly[2] = { 00260 { 00261 -270.000, 0.000,// characteristic curve for temp range between -270.000, and 0.000, 00262 {0.000000000000, 0.394501280250, 0.236223735980, -0.328589067840, -0.499048287770, -0.675090591730, -0.574103274280, -0.310888728940, -0.104516093650, -0.198892668780, -0.163226974860,}, 00263 { 0, -1, -4, -6, -8, -10, -12, -14, -16, -19, -22,}, 00264 11 00265 }, 00266 { 00267 0.000, 1372.000,// characteristic curve for temp range between 0.000, and 1372.000, 00268 { -0.176004136860, 0.389212049750, 0.185587700320, -0.994575928740, 0.318409457190, -0.560728448890, 0.560750590590, -0.320207200030, 0.971511471520, -0.121047212750,}, 00269 { -1, -1, -4, -7, -9, -12, -15, -18, -22, -25,}, 00270 10 00271 } 00272 }; 00273 00274 float Thermocouple_Type_K::convert_inv(float temp) 00275 { 00276 return Thermocouple::convert(temp, inv_poly, inv_poly_size); 00277 } 00278 00279 float Thermocouple_Type_K::lookup_inv(float temp) 00280 { 00281 #ifdef TYPE_K_LUT 00282 if((temp + lut_offset) > lut_size) 00283 return lut[lut_size - 1]; 00284 else 00285 return lut[(uint16_t)temp + lut_offset]; 00286 #else 00287 /* NOT IMPLEMENTED */ 00288 return 0; 00289 #endif 00290 } 00291 const int Thermocouple_Type_K::poly_size = 3; 00292 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_K::poly[3] = { 00293 { 00294 -5.891, 0.000, // characteristic curve for mV range between -5.891 and 0.000 00295 { 0.0000000, 2.5173462, -1.1662878, -1.0833638, -8.9773540, -3.7342377, -8.6632643, -1.0450598, -5.1920577, 0.0000000,}, 00296 { 0, 1, 0, 0, -1, -1, -2, -2, -4, 0,}, 00297 10 00298 }, 00299 { 00300 0.000, 20.644, // characteristic curve for mV range between 0.000 and 20.644 00301 { 0.000000, 2.508355, 7.860106, -2.503131, 8.315270, -1.228034, 9.804036, -4.413030, 1.057734, -1.052755,}, 00302 { 0, 1, -2, -1, -2, -2, -4, -5, -6, -8,}, 00303 10 00304 }, 00305 { 00306 20.644, 54.886, // characteristic curve for mV range between 20.644 and 54.886 00307 { -1.318058, 4.830222, -1.646031, 5.464731, -9.650715, 8.802193, -3.110810, 0.000000, 0.000000, 0.000000,}, 00308 { 2, 1, 0, -2, -4, -6, -8, 0, 0, 0,}, 00309 10 00310 } 00311 }; 00312 00313 Thermocouple_Type_K::~Thermocouple_Type_K() 00314 { 00315 00316 } 00317 00318 float Thermocouple_Type_K::convert(float voltage) 00319 { 00320 return Thermocouple::convert(voltage, poly, poly_size); 00321 } 00322 00323 float Thermocouple_Type_K::lookup(float voltage) 00324 { 00325 #ifdef TYPE_K_LUT 00326 return Thermocouple::lookup(lut, voltage, lut_size, lut_offset); 00327 #else 00328 /* NOT IMPLEMENTED */ 00329 return 0; 00330 #endif 00331 } 00332 const int Thermocouple_Type_N::inv_poly_size = 2; 00333 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_N::inv_poly[2] = { 00334 { 00335 -270.000, 0.000,// characteristic curve for temp range between -270.000, and 0.000, 00336 {0.000000000000, 0.261591059620, 0.109574842280, -0.938411115540, -0.464120397590, -0.263033577160, -0.226534380030, -0.760893007910, -0.934196678350,}, 00337 { 0, -1, -4, -7, -10, -11, -13, -16, -19,}, 00338 9 00339 }, 00340 { 00341 0.000, 1300.000,// characteristic curve for temp range between 0.000, and 1300.000, 00342 {0.000000000000, 0.259293946010, 0.157101418800, 0.438256272370, -0.252611697940, 0.643118193390, -0.100634715190, 0.997453389920, -0.608632456070, 0.208492293390, -0.306821961510,}, 00343 { 0, -1, -4, -7, -9, -12, -14, -18, -21, -24, -28,}, 00344 11 00345 } 00346 }; 00347 00348 float Thermocouple_Type_N::convert_inv(float temp) 00349 { 00350 return Thermocouple::convert(temp, inv_poly, inv_poly_size); 00351 } 00352 00353 float Thermocouple_Type_N::lookup_inv(float temp) 00354 { 00355 #ifdef TYPE_N_LUT 00356 if((temp + lut_offset) > lut_size) 00357 return lut[lut_size - 1]; 00358 else 00359 return lut[(uint16_t)temp + lut_offset]; 00360 #else 00361 /* NOT IMPLEMENTED */ 00362 return 0; 00363 #endif 00364 } 00365 const int Thermocouple_Type_N::poly_size = 3; 00366 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_N::poly[3] = { 00367 { 00368 -3.990, 0.000, // characteristic curve for mV range between -3.990 and 0.000 00369 { 0.0000000, 3.8436847, 1.1010485, 5.2229312, 7.2060525, 5.8488586, 2.7754916, 7.7075166, 1.1582665, 7.3138868,}, 00370 { 0, 1, 0, 0, 0, 0, 0, -1, -1, -3,}, 00371 10 00372 }, 00373 { 00374 0.000, 20.613, // characteristic curve for mV range between 0.000 and 20.613 00375 { 0.00000, 3.86896, -1.08267, 4.70205, -2.12169, -1.17272, 5.39280, -7.98156, 0.00000, 0.00000,}, 00376 { 0, 1, 0, -2, -6, -4, -6, -8, 0, 0,}, 00377 10 00378 }, 00379 { 00380 20.613, 47.513, // characteristic curve for mV range between 20.613 and 47.513 00381 { 1.972485, 3.300943, -3.915159, 9.855391, -1.274371, 7.767022, 0.000000, 0.000000, 0.000000, 0.000000,}, 00382 { 1, 1, -1, -3, -4, -7, 0, 0, 0, 0,}, 00383 10 00384 } 00385 }; 00386 00387 Thermocouple_Type_N::~Thermocouple_Type_N() 00388 { 00389 00390 } 00391 00392 float Thermocouple_Type_N::convert(float voltage) 00393 { 00394 return Thermocouple::convert(voltage, poly, poly_size); 00395 } 00396 00397 float Thermocouple_Type_N::lookup(float voltage) 00398 { 00399 #ifdef TYPE_N_LUT 00400 return Thermocouple::lookup(lut, voltage, lut_size, lut_offset); 00401 #else 00402 /* NOT IMPLEMENTED */ 00403 return 0; 00404 #endif 00405 } 00406 const int Thermocouple_Type_R::inv_poly_size = 3; 00407 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_R::inv_poly[3] = { 00408 { 00409 -50.000, 1064.180,// characteristic curve for temp range between -50.000, and 1064.180, 00410 {0.000000000000, 0.528961729765, 0.139166589782, -0.238855693017, 0.356916001063, -0.462347666298, 0.500777441034, -0.373105886191, 0.157716482367, -0.281038625251,}, 00411 { 0, -2, -4, -7, -10, -13, -16, -19, -22, -26,}, 00412 10 00413 }, 00414 { 00415 1064.180, 1664.500,// characteristic curve for temp range between 1064.180, and 1664.500, 00416 {0.295157925316, -0.252061251332, 0.159564501865, -0.764085947576, 0.205305291024, -0.293359668173,}, 00417 { 1, -2, -4, -8, -11, -15,}, 00418 6 00419 }, 00420 { 00421 1664.500, 1768.100,// characteristic curve for temp range between 1664.500, and 1768.100, 00422 {0.152232118209, -0.268819888545, 0.171280280471, -0.345895706453, -0.934633971046,}, 00423 { 3, 0, -3, -7, -14,}, 00424 5 00425 } 00426 }; 00427 00428 float Thermocouple_Type_R::convert_inv(float temp) 00429 { 00430 return Thermocouple::convert(temp, inv_poly, inv_poly_size); 00431 } 00432 00433 float Thermocouple_Type_R::lookup_inv(float temp) 00434 { 00435 #ifdef TYPE_R_LUT 00436 if((temp + lut_offset) > lut_size) 00437 return lut[lut_size - 1]; 00438 else 00439 return lut[(uint16_t)temp + lut_offset]; 00440 #else 00441 /* NOT IMPLEMENTED */ 00442 return 0; 00443 #endif 00444 } 00445 const int Thermocouple_Type_R::poly_size = 4; 00446 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_R::poly[4] = { 00447 { 00448 -0.226, 1.923, // characteristic curve for mV range between -0.226 and 1.923 00449 { 0.0000000, 1.8891380, -9.3835290, 1.3068619, -2.2703580, 3.5145659, -3.8953900, 2.8239471, -1.2607281, 3.1353611, -3.3187769,}, 00450 { 0, 2, 1, 2, 2, 2, 2, 2, 2, 1, 0,}, 00451 11 00452 }, 00453 { 00454 1.923, 13.228, // characteristic curve for mV range between 1.923 and 13.228 00455 {1.334584505, 1.472644573, -1.844024844, 4.031129726, -6.249428360, 6.468412046, -4.458750426, 1.994710149, -5.313401790, 6.481976217, 0.000000000,}, 00456 { 1, 2, 1, 0, -1, -2, -3, -4, -6, -8, 0,}, 00457 11 00458 }, 00459 { 00460 11.361, 19.739, // characteristic curve for mV range between 11.361 and 19.739 00461 { -8.199599416, 1.553962042, -8.342197663, 4.279433549, -1.191577910, 1.492290091, 0.000000000, 0.000000000, 0.000000000, 0.000000000, 0.000000000,}, 00462 { 1, 2, 0, -1, -2, -4, 0, 0, 0, 0, 0,}, 00463 11 00464 }, 00465 { 00466 19.739, 21.103, // characteristic curve for mV range between 19.739 and 21.103 00467 {3.406177836, -7.023729171, 5.582903813, -1.952394635, 2.560740231, 0.000000000, 0.000000000, 0.000000000, 0.000000000, 0.000000000, 0.000000000,}, 00468 { 4, 3, 2, 1, -1, 0, 0, 0, 0, 0, 0,}, 00469 11 00470 } 00471 }; 00472 00473 Thermocouple_Type_R::~Thermocouple_Type_R() 00474 { 00475 00476 } 00477 00478 float Thermocouple_Type_R::convert(float voltage) 00479 { 00480 return Thermocouple::convert(voltage, poly, poly_size); 00481 } 00482 00483 float Thermocouple_Type_R::lookup(float voltage) 00484 { 00485 #ifdef TYPE_R_LUT 00486 return Thermocouple::lookup(lut, voltage, lut_size, lut_offset); 00487 #else 00488 /* NOT IMPLEMENTED */ 00489 return 0; 00490 #endif 00491 } 00492 const int Thermocouple_Type_S::inv_poly_size = 3; 00493 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_S::inv_poly[3] = { 00494 { 00495 -50.000, 1064.180,// characteristic curve for temp range between -50.000, and 1064.180, 00496 {0.000000000000, 0.540313308631, 0.125934289740, -0.232477968689, 0.322028823036, -0.331465196389, 0.255744251786, -0.125068871393, 0.271443176145,}, 00497 { 0, -2, -4, -7, -10, -13, -16, -19, -23,}, 00498 9 00499 }, 00500 { 00501 1064.180, 1664.500,// characteristic curve for temp range between 1064.180, and 1664.500, 00502 {0.132900444085, 0.334509311344, 0.654805192818, -0.164856259209, 0.129989605174,}, 00503 { 1, -2, -5, -8, -13,}, 00504 5 00505 }, 00506 { 00507 1664.500, 1768.100,// characteristic curve for temp range between 1664.500, and 1768.100, 00508 {0.146628232636, -0.258430516752, 0.163693574641, -0.330439046987, -0.943223690612,}, 00509 { 3, 0, -3, -7, -14,}, 00510 5 00511 } 00512 }; 00513 00514 float Thermocouple_Type_S::convert_inv(float temp) 00515 { 00516 return Thermocouple::convert(temp, inv_poly, inv_poly_size); 00517 } 00518 00519 float Thermocouple_Type_S::lookup_inv(float temp) 00520 { 00521 #ifdef TYPE_S_LUT 00522 if((temp + lut_offset) > lut_size) 00523 return lut[lut_size - 1]; 00524 else 00525 return lut[(uint16_t)temp + lut_offset]; 00526 #else 00527 /* NOT IMPLEMENTED */ 00528 return 0; 00529 #endif 00530 } 00531 const int Thermocouple_Type_S::poly_size = 4; 00532 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_S::poly[4] = { 00533 { 00534 -0.235, 1.874, // characteristic curve for mV range between -0.235 and 1.874 00535 { 0.00000000, 1.84949460, -8.00504062, 1.02237430, -1.52248592, 1.88821343, -1.59085941, 8.23027880, -2.34181944, 2.79786260,}, 00536 { 0, 2, 1, 2, 2, 2, 2, 1, 1, 0,}, 00537 10 00538 }, 00539 { 00540 1.874, 11.950, // characteristic curve for mV range between 1.874 and 11.950 00541 {1.291507177, 1.466298863, -1.534713402, 3.145945973, -4.163257839, 3.187963771, -1.291637500, 2.183475087, -1.447379511, 8.211272125,}, 00542 { 1, 2, 1, 0, -1, -2, -3, -5, -7, -9,}, 00543 10 00544 }, 00545 { 00546 10.332, 17.536, // characteristic curve for mV range between 10.332 and 17.536 00547 { -8.087801117, 1.621573104, -8.536869453, 4.719686976, -1.441693666, 2.081618890, 0.000000000, 0.000000000, 0.000000000, 0.000000000,}, 00548 { 1, 2, 0, -1, -2, -4, 0, 0, 0, 0,}, 00549 10 00550 }, 00551 { 00552 17.536, 18.693, // characteristic curve for mV range between 17.536 and 18.693 00553 {5.333875126, -1.235892298, 1.092657613, -4.265693686, 6.247205420, 0.000000000, 0.000000000, 0.000000000, 0.000000000, 0.000000000,}, 00554 { 4, 4, 3, 1, -1, 0, 0, 0, 0, 0,}, 00555 10 00556 } 00557 }; 00558 00559 Thermocouple_Type_S::~Thermocouple_Type_S() 00560 { 00561 00562 } 00563 00564 float Thermocouple_Type_S::convert(float voltage) 00565 { 00566 return Thermocouple::convert(voltage, poly, poly_size); 00567 } 00568 00569 float Thermocouple_Type_S::lookup(float voltage) 00570 { 00571 #ifdef TYPE_S_LUT 00572 return Thermocouple::lookup(lut, voltage, lut_size, lut_offset); 00573 #else 00574 /* NOT IMPLEMENTED */ 00575 return 0; 00576 #endif 00577 } 00578 const int Thermocouple_Type_T::inv_poly_size = 2; 00579 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_T::inv_poly[2] = { 00580 { 00581 -270.000, 0.000,// characteristic curve for temp range between -270.000, and 0.000, 00582 {0.000000000000, 0.387481063640, 0.441944343470, 0.118443231050, 0.200329735540, 0.901380195590, 0.226511565930, 0.360711542050, 0.384939398830, 0.282135219250, 0.142515947790, 0.487686622860, 0.107955392700, 0.139450270620, 0.797951539270,}, 00583 { 0, -1, -4, -6, -7, -9, -10, -12, -14, -16, -18, -21, -23, -26, -30,}, 00584 15 00585 }, 00586 { 00587 0.000, 400.000,// characteristic curve for temp range between 0.000, and 400.000, 00588 {0.000000000000, 0.387481063640, 0.332922278800, 0.206182434040, -0.218822568460, 0.109968809280, -0.308157587720, 0.454791352900, -0.275129016730,}, 00589 { 0, -1, -4, -6, -8, -10, -13, -16, -19,}, 00590 9 00591 } 00592 }; 00593 00594 float Thermocouple_Type_T::convert_inv(float temp) 00595 { 00596 return Thermocouple::convert(temp, inv_poly, inv_poly_size); 00597 } 00598 00599 float Thermocouple_Type_T::lookup_inv(float temp) 00600 { 00601 #ifdef TYPE_T_LUT 00602 if((temp + lut_offset) > lut_size) 00603 return lut[lut_size - 1]; 00604 else 00605 return lut[(uint16_t)temp + lut_offset]; 00606 #else 00607 /* NOT IMPLEMENTED */ 00608 return 0; 00609 #endif 00610 } 00611 const int Thermocouple_Type_T::poly_size = 2; 00612 const Thermocouple::thermocouple_poly_subrange Thermocouple_Type_T::poly[2] = { 00613 { 00614 -5.603, 0.000, // characteristic curve for mV range between -5.603 and 0.000 00615 { 0.0000000, 2.5949192, -2.1316967, 7.9018692, 4.2527777, 1.3304473, 2.0241446, 1.2668171,}, 00616 { 0, 1, -1, -1, -1, -1, -2, -3,}, 00617 8 00618 }, 00619 { 00620 0.000, 20.872, // characteristic curve for mV range between 0.000 and 20.872 00621 { 0.000000, 2.592800, -7.602961, 4.637791, -2.165394, 6.048144, -7.293422, 0.000000,}, 00622 { 0, 1, -1, -2, -3, -5, -7, 0,}, 00623 8 00624 } 00625 }; 00626 00627 Thermocouple_Type_T::~Thermocouple_Type_T() 00628 { 00629 00630 } 00631 00632 float Thermocouple_Type_T::convert(float voltage) 00633 { 00634 return Thermocouple::convert(voltage, poly, poly_size); 00635 } 00636 00637 float Thermocouple_Type_T::lookup(float voltage) 00638 { 00639 #ifdef TYPE_T_LUT 00640 return Thermocouple::lookup(lut, voltage, lut_size, lut_offset); 00641 #else 00642 /* NOT IMPLEMENTED */ 00643 return 0; 00644 #endif 00645 }
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