Task 1In this task, three methods of measuring temperature have been summarized. The fundamental physics and equations underlying measurement, a figure supporting the description, a description of the range, accuracy and precision, advantages and disadvantages, and how these Devices producing digital signals will be covered in this task. Vapor Pressure Thermometers The Steam Device System Pressure thermometers contain both vapor and liquid, but they are still considered a type of gas-filled instrument. A bulb is used to store the mixture of the two phases, and it is this bulb which is suspended in the medium whose temperature must be measured. This bulb is connected to a drone tube which measures the vapor pressure of the liquid inside the bulb. The basic physics behind this thermometer is that exposing the bulb to higher temperatures increases the vapor pressure of the liquid inside the bulb, causing the needle on the drone tube to indicate a higher pressure reading and vice versa. Bourdon tube readings can be calibrated and converted to temperature readings using equations of state.1 Equations of state such as ideal gas can be used to relate temperature, pressure, and number of moles of gas present in the bulb. In this thermometer, the number of moles of gas inside the bulb remains constant, leaving only two variables: temperature and pressure. The correlation between pressure and temperature can be established using the ideal gas equation. In the ideal gas equation, the temperature of the gas is directly proportional to the vapor pressure of the gas inside the bulb. However, this relationship might not be linear because not all gases obey the ideal gas law. In the middle......in the middle of the paper......t. The conversion of the signal is quite simple to a thermocouple since a voltage signal is produced. 6 Thermocouples measure temperatures very accurately because the reference junction temperature does not change during the measurement period. The voltage signal produced by the thermocouple can be converted into an electrical signal in several ways. One way to do this is to use a power series polynomial. The power series coefficients are known for each type of thermocouple and, using the thermocouple output voltage, the temperature can be calculated. 6E = A0 + A1T +A2T2 +A3T3 +…. + AnTn Equation (4)E is the thermoelectric voltage in microvolts and T is the temperature at the measuring junction. The coefficients are constant and are different for different thermocouples.