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  • Simplified Thermocouple Interfaces and PICmicro (R) MCUs
    small. The range can. nomials that describe the temperature-voltage curve. be extended if the accuracy requirement is low. J and. for each type of thermocouple. These calculations are. K thermocouples can be linearly approximated over. best performed with floating point math because there. © 2002
  • Temperature sensors: Thermocouples
    thermocouples determine their qualities and are identified by a letter code. The four most common types are J, K, T, and E. One advantage thermo-couples have over other temperature sensors is that they need no electrical power to operate they generate their own. A thermocouple connected directly
  • Basics of Noncontact Temperature Measurement: Infrared Thermometers and Thermal Imagers
    . wavelength. The concentration of the radiation does not de-. pend on angles. The black body is the basis for understanding. 100. the physical fundaments of non-contact temperature measure-. ment and for calibrating the infrared thermometers. 800 K. 10-2. 300 K. 10-4. 77 K. 10-6. 10-1. 100. 101. 102
  • Basics of Noncontact Temperature Measurement: Infrared Thermometers and Thermal Imagers
    of the radiation does not de-. pend on angles. The black body is the basis for understanding. 100. the physical fundaments of non-contact temperature measure-. ment and for calibrating the infrared thermometers. 800 K. 10-2. 300 K. 10-4. 77 K. 10-6. 10-1. 100. 101. 102. 103. Visible spectrum. Wavelength in µm
  • Accuracy Standards
    The industry standard for platinum RTD's according to IEC-751 is + /- 0.12% (of resistance) at 0°C, commonly referred to as Class B accuracy. This will provide an accuracy of + /- 0.3°C at 0°C, which is quite good if you compare it to the + /- 2.2°C of a standard Type J or K thermocouple. Accuracy
  • Selecting The Right Sensor
    only provide temperature readings within 3.0 C at 650 C. More accurate, grade A RTDs are available which will perform within 1.24 C at 650 C. By comparison, the most common base metal thermocouples, types J and K, will provide accuracy of 2.2 C or 0.75% (whichever is greater) when supplied
  • Process temperature measurement practice--contacting
    and the negative conductor is a copper-nick-. groups: precious metal thermocouples Types S, R and. el al oy cal ed constantan. Although the basic values. B, and the base metal thermocouples Types E, J, K, N. for Type J in the standard define a temperature range. and T. from -210...1200 °C (-346...2192
  • About Temperature
    . The unit of temperature on this scale is called the kelvin, after Lord Kelvin (William Thompson), 1824-1907, and its symbol is K (no degree symbol used). To convert from Celsius to Kelvin, add 273. Formula+ K = C + 273. Thermodynamic temperature is the fundamental temperature; its unit is the kelvin