Analog Devices / tempsensors

Library to support temperature sensor conversions and lookups

thermocouple.h@4:d8246c20aed2, 2021-07-01 (annotated)

Committer:
mahphalke
Date:
Thu Jul 01 13:41:18 2021 +0530
Revision:
4:d8246c20aed2
Parent:
2:bcfa5a2f21c9 
Adding equation to calculate 10K 44031 NTC temperature using Beta value

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mahphalke 1:f65f6fadda5d 1 /*!
mahphalke 1:f65f6fadda5d 2 *****************************************************************************
mahphalke 1:f65f6fadda5d 3 @file: thermocouple.h
mahphalke 1:f65f6fadda5d 4
mahphalke 1:f65f6fadda5d 5 @brief:
mahphalke 1:f65f6fadda5d 6
mahphalke 1:f65f6fadda5d 7 @details:
mahphalke 1:f65f6fadda5d 8 -----------------------------------------------------------------------------
mahphalke 1:f65f6fadda5d 9 Copyright (c) 2018, 2020 Analog Devices, Inc. All rights reserved.
mahphalke 1:f65f6fadda5d 10
mahphalke 1:f65f6fadda5d 11 This software is proprietary to Analog Devices, Inc. and its licensors.
mahphalke 1:f65f6fadda5d 12 By using this software you agree to the terms of the associated
mahphalke 1:f65f6fadda5d 13 Analog Devices Software License Agreement.
mahphalke 1:f65f6fadda5d 14
mahphalke 1:f65f6fadda5d 15 *****************************************************************************/
mahphalke 1:f65f6fadda5d 16
mahphalke 1:f65f6fadda5d 17 #include "stdint.h"
mahphalke 1:f65f6fadda5d 18
mahphalke 1:f65f6fadda5d 19 #ifndef _THERMOCOUPLE_H_
mahphalke 1:f65f6fadda5d 20 #define _THERMOCOUPLE_H_
mahphalke 1:f65f6fadda5d 21
mahphalke 1:f65f6fadda5d 22 #define DEFINE_LOOKUP_TABLES
mahphalke 1:f65f6fadda5d 23 #ifdef DEFINE_LOOKUP_TABLES
mahphalke 1:f65f6fadda5d 24 #define TYPE_B_LUT
mahphalke 1:f65f6fadda5d 25 #define TYPE_E_LUT
mahphalke 1:f65f6fadda5d 26 #define TYPE_J_LUT
mahphalke 1:f65f6fadda5d 27 #define TYPE_K_LUT
mahphalke 1:f65f6fadda5d 28 #define TYPE_N_LUT
mahphalke 1:f65f6fadda5d 29 #define TYPE_R_LUT
mahphalke 1:f65f6fadda5d 30 #define TYPE_S_LUT
mahphalke 1:f65f6fadda5d 31 #define TYPE_T_LUT
mahphalke 1:f65f6fadda5d 32 #endif
mahphalke 1:f65f6fadda5d 33
mahphalke 1:f65f6fadda5d 34 class Thermocouple
mahphalke 1:f65f6fadda5d 35 {
mahphalke 1:f65f6fadda5d 36 private:
mahphalke 1:f65f6fadda5d 37
mahphalke 1:f65f6fadda5d 38 public:
mahphalke 1:f65f6fadda5d 39 typedef struct {
mahphalke 1:f65f6fadda5d 40 float min_voltage_range;
mahphalke 1:f65f6fadda5d 41 float max_voltage_range;
mahphalke 1:f65f6fadda5d 42 float coef[16];
mahphalke 1:f65f6fadda5d 43 float power[16];
mahphalke 1:f65f6fadda5d 44 int n;
mahphalke 1:f65f6fadda5d 45 } thermocouple_poly_subrange;
mahphalke 1:f65f6fadda5d 46 Thermocouple();
mahphalke 1:f65f6fadda5d 47 virtual ~Thermocouple();
mahphalke 1:f65f6fadda5d 48 static float convert(float voltage, const thermocouple_poly_subrange range[],
mahphalke 1:f65f6fadda5d 49 const int n);
mahphalke 1:f65f6fadda5d 50 static float lookup(const int32_t *lut, float voltage,uint16_t size,
mahphalke 1:f65f6fadda5d 51 int16_t offset);
mahphalke 1:f65f6fadda5d 52 virtual float convert(float voltage) = 0;
mahphalke 1:f65f6fadda5d 53 virtual float convert_inv(float temp) = 0;
mahphalke 1:f65f6fadda5d 54 virtual float lookup(float voltage) = 0;
mahphalke 1:f65f6fadda5d 55 virtual float lookup_inv(float temp) = 0;
mahphalke 1:f65f6fadda5d 56
mahphalke 1:f65f6fadda5d 57 };
mahphalke 1:f65f6fadda5d 58
mahphalke 1:f65f6fadda5d 59
mahphalke 1:f65f6fadda5d 60
mahphalke 1:f65f6fadda5d 61
mahphalke 1:f65f6fadda5d 62 class Thermocouple_Type_B : public Thermocouple
mahphalke 1:f65f6fadda5d 63 {
mahphalke 1:f65f6fadda5d 64 public:
mahphalke 1:f65f6fadda5d 65 ~Thermocouple_Type_B();
mahphalke 1:f65f6fadda5d 66 static const thermocouple_poly_subrange inv_poly[2];
mahphalke 1:f65f6fadda5d 67 static const int inv_poly_size;
mahphalke 1:f65f6fadda5d 68 float convert_inv(float temp);
mahphalke 1:f65f6fadda5d 69
mahphalke 1:f65f6fadda5d 70 static const thermocouple_poly_subrange poly[2];
mahphalke 1:f65f6fadda5d 71 static const int poly_size;
mahphalke 1:f65f6fadda5d 72 float convert(float voltage);
mahphalke 1:f65f6fadda5d 73 #ifdef TYPE_B_LUT
mahphalke 1:f65f6fadda5d 74 static const int32_t lut[];
mahphalke 1:f65f6fadda5d 75 static const int16_t lut_offset;
mahphalke 1:f65f6fadda5d 76 static const uint16_t lut_size;
mahphalke 1:f65f6fadda5d 77 float lookup(float voltage);
mahphalke 1:f65f6fadda5d 78 float lookup_inv(float temp);
mahphalke 1:f65f6fadda5d 79 #endif
mahphalke 1:f65f6fadda5d 80 };
mahphalke 1:f65f6fadda5d 81
mahphalke 1:f65f6fadda5d 82
mahphalke 1:f65f6fadda5d 83 class Thermocouple_Type_E : public Thermocouple
mahphalke 1:f65f6fadda5d 84 {
mahphalke 1:f65f6fadda5d 85 public:
mahphalke 1:f65f6fadda5d 86 ~Thermocouple_Type_E();
mahphalke 1:f65f6fadda5d 87 static const thermocouple_poly_subrange inv_poly[2];
mahphalke 1:f65f6fadda5d 88 static const int inv_poly_size;
mahphalke 1:f65f6fadda5d 89 float convert_inv(float temp);
mahphalke 1:f65f6fadda5d 90
mahphalke 1:f65f6fadda5d 91 static const thermocouple_poly_subrange poly[2];
mahphalke 1:f65f6fadda5d 92 static const int poly_size;
mahphalke 1:f65f6fadda5d 93 float convert(float voltage);
mahphalke 1:f65f6fadda5d 94 #ifdef TYPE_E_LUT
mahphalke 1:f65f6fadda5d 95 static const int32_t lut[];
mahphalke 1:f65f6fadda5d 96 static const int16_t lut_offset;
mahphalke 1:f65f6fadda5d 97 static const uint16_t lut_size;
mahphalke 1:f65f6fadda5d 98 float lookup(float voltage);
mahphalke 1:f65f6fadda5d 99 float lookup_inv(float temp);
mahphalke 1:f65f6fadda5d 100 #endif
mahphalke 1:f65f6fadda5d 101 };
mahphalke 1:f65f6fadda5d 102
mahphalke 1:f65f6fadda5d 103
mahphalke 1:f65f6fadda5d 104 class Thermocouple_Type_J : public Thermocouple
mahphalke 1:f65f6fadda5d 105 {
mahphalke 1:f65f6fadda5d 106 public:
mahphalke 1:f65f6fadda5d 107 ~Thermocouple_Type_J();
mahphalke 1:f65f6fadda5d 108 static const thermocouple_poly_subrange inv_poly[2];
mahphalke 1:f65f6fadda5d 109 static const int inv_poly_size;
mahphalke 1:f65f6fadda5d 110 float convert_inv(float temp);
mahphalke 1:f65f6fadda5d 111
mahphalke 1:f65f6fadda5d 112 static const thermocouple_poly_subrange poly[3];
mahphalke 1:f65f6fadda5d 113 static const int poly_size;
mahphalke 1:f65f6fadda5d 114 float convert(float voltage);
mahphalke 1:f65f6fadda5d 115 #ifdef TYPE_J_LUT
mahphalke 1:f65f6fadda5d 116 static const int32_t lut[];
mahphalke 1:f65f6fadda5d 117 static const int16_t lut_offset;
mahphalke 1:f65f6fadda5d 118 static const uint16_t lut_size;
mahphalke 1:f65f6fadda5d 119 float lookup(float voltage);
mahphalke 1:f65f6fadda5d 120 float lookup_inv(float temp);
mahphalke 1:f65f6fadda5d 121 #endif
mahphalke 1:f65f6fadda5d 122 };
mahphalke 1:f65f6fadda5d 123
mahphalke 1:f65f6fadda5d 124
mahphalke 1:f65f6fadda5d 125 class Thermocouple_Type_K : public Thermocouple
mahphalke 1:f65f6fadda5d 126 {
mahphalke 1:f65f6fadda5d 127 public:
mahphalke 1:f65f6fadda5d 128 ~Thermocouple_Type_K();
mahphalke 1:f65f6fadda5d 129 static const thermocouple_poly_subrange inv_poly[2];
mahphalke 1:f65f6fadda5d 130 static const int inv_poly_size;
mahphalke 1:f65f6fadda5d 131 float convert_inv(float temp);
mahphalke 1:f65f6fadda5d 132
mahphalke 1:f65f6fadda5d 133 static const thermocouple_poly_subrange poly[3];
mahphalke 1:f65f6fadda5d 134 static const int poly_size;
mahphalke 1:f65f6fadda5d 135 float convert(float voltage);
mahphalke 1:f65f6fadda5d 136 #ifdef TYPE_K_LUT
mahphalke 1:f65f6fadda5d 137 static const int32_t lut[];
mahphalke 1:f65f6fadda5d 138 static const int16_t lut_offset;
mahphalke 1:f65f6fadda5d 139 static const uint16_t lut_size;
mahphalke 1:f65f6fadda5d 140 float lookup(float voltage);
mahphalke 1:f65f6fadda5d 141 float lookup_inv(float temp);
mahphalke 1:f65f6fadda5d 142 #endif
mahphalke 1:f65f6fadda5d 143 };
mahphalke 1:f65f6fadda5d 144
mahphalke 1:f65f6fadda5d 145
mahphalke 1:f65f6fadda5d 146 class Thermocouple_Type_N : public Thermocouple
mahphalke 1:f65f6fadda5d 147 {
mahphalke 1:f65f6fadda5d 148 public:
mahphalke 1:f65f6fadda5d 149 ~Thermocouple_Type_N();
mahphalke 1:f65f6fadda5d 150 static const thermocouple_poly_subrange inv_poly[2];
mahphalke 1:f65f6fadda5d 151 static const int inv_poly_size;
mahphalke 1:f65f6fadda5d 152 float convert_inv(float temp);
mahphalke 1:f65f6fadda5d 153
mahphalke 1:f65f6fadda5d 154 static const thermocouple_poly_subrange poly[3];
mahphalke 1:f65f6fadda5d 155 static const int poly_size;
mahphalke 1:f65f6fadda5d 156 float convert(float voltage);
mahphalke 1:f65f6fadda5d 157 #ifdef TYPE_N_LUT
mahphalke 1:f65f6fadda5d 158 static const int32_t lut[];
mahphalke 1:f65f6fadda5d 159 static const int16_t lut_offset;
mahphalke 1:f65f6fadda5d 160 static const uint16_t lut_size;
mahphalke 1:f65f6fadda5d 161 float lookup(float voltage);
mahphalke 1:f65f6fadda5d 162 float lookup_inv(float temp);
mahphalke 1:f65f6fadda5d 163 #endif
mahphalke 1:f65f6fadda5d 164 };
mahphalke 1:f65f6fadda5d 165
mahphalke 1:f65f6fadda5d 166
mahphalke 1:f65f6fadda5d 167 class Thermocouple_Type_R : public Thermocouple
mahphalke 1:f65f6fadda5d 168 {
mahphalke 1:f65f6fadda5d 169 public:
mahphalke 1:f65f6fadda5d 170 ~Thermocouple_Type_R();
mahphalke 1:f65f6fadda5d 171 static const thermocouple_poly_subrange inv_poly[3];
mahphalke 1:f65f6fadda5d 172 static const int inv_poly_size;
mahphalke 1:f65f6fadda5d 173 float convert_inv(float temp);
mahphalke 1:f65f6fadda5d 174
mahphalke 1:f65f6fadda5d 175 static const thermocouple_poly_subrange poly[4];
mahphalke 1:f65f6fadda5d 176 static const int poly_size;
mahphalke 1:f65f6fadda5d 177 float convert(float voltage);
mahphalke 1:f65f6fadda5d 178 #ifdef TYPE_R_LUT
mahphalke 1:f65f6fadda5d 179 static const int32_t lut[];
mahphalke 1:f65f6fadda5d 180 static const int16_t lut_offset;
mahphalke 1:f65f6fadda5d 181 static const uint16_t lut_size;
mahphalke 1:f65f6fadda5d 182 float lookup(float voltage);
mahphalke 1:f65f6fadda5d 183 float lookup_inv(float temp);
mahphalke 1:f65f6fadda5d 184 #endif
mahphalke 1:f65f6fadda5d 185 };
mahphalke 1:f65f6fadda5d 186
mahphalke 1:f65f6fadda5d 187
mahphalke 1:f65f6fadda5d 188 class Thermocouple_Type_S : public Thermocouple
mahphalke 1:f65f6fadda5d 189 {
mahphalke 1:f65f6fadda5d 190 public:
mahphalke 1:f65f6fadda5d 191 ~Thermocouple_Type_S();
mahphalke 1:f65f6fadda5d 192 static const thermocouple_poly_subrange inv_poly[3];
mahphalke 1:f65f6fadda5d 193 static const int inv_poly_size;
mahphalke 1:f65f6fadda5d 194 float convert_inv(float temp);
mahphalke 1:f65f6fadda5d 195
mahphalke 1:f65f6fadda5d 196 static const thermocouple_poly_subrange poly[4];
mahphalke 1:f65f6fadda5d 197 static const int poly_size;
mahphalke 1:f65f6fadda5d 198 float convert(float voltage);
mahphalke 1:f65f6fadda5d 199 #ifdef TYPE_S_LUT
mahphalke 1:f65f6fadda5d 200 static const int32_t lut[];
mahphalke 1:f65f6fadda5d 201 static const int16_t lut_offset;
mahphalke 1:f65f6fadda5d 202 static const uint16_t lut_size;
mahphalke 1:f65f6fadda5d 203 float lookup(float voltage);
mahphalke 1:f65f6fadda5d 204 float lookup_inv(float temp);
mahphalke 1:f65f6fadda5d 205 #endif
mahphalke 1:f65f6fadda5d 206 };
mahphalke 1:f65f6fadda5d 207
mahphalke 1:f65f6fadda5d 208
mahphalke 1:f65f6fadda5d 209 class Thermocouple_Type_T : public Thermocouple
mahphalke 1:f65f6fadda5d 210 {
mahphalke 1:f65f6fadda5d 211 public:
mahphalke 1:f65f6fadda5d 212 ~Thermocouple_Type_T();
mahphalke 1:f65f6fadda5d 213 static const thermocouple_poly_subrange inv_poly[2];
mahphalke 1:f65f6fadda5d 214 static const int inv_poly_size;
mahphalke 1:f65f6fadda5d 215 float convert_inv(float temp);
mahphalke 1:f65f6fadda5d 216
mahphalke 1:f65f6fadda5d 217 static const thermocouple_poly_subrange poly[2];
mahphalke 1:f65f6fadda5d 218 static const int poly_size;
mahphalke 1:f65f6fadda5d 219 float convert(float voltage);
mahphalke 1:f65f6fadda5d 220 #ifdef TYPE_T_LUT
mahphalke 1:f65f6fadda5d 221 static const int32_t lut[];
mahphalke 1:f65f6fadda5d 222 static const int16_t lut_offset;
mahphalke 1:f65f6fadda5d 223 static const uint16_t lut_size;
mahphalke 1:f65f6fadda5d 224 float lookup(float voltage);
mahphalke 1:f65f6fadda5d 225 float lookup_inv(float temp);
mahphalke 1:f65f6fadda5d 226 #endif
mahphalke 1:f65f6fadda5d 227 };
mahphalke 1:f65f6fadda5d 228
mahphalke 1:f65f6fadda5d 229 #endif