Software engineers are divided into two specialties: computer application engineers and computer systems engineers. Computer application engineers analyze the needs of the user to design, create and maintain broad-focused computer application software or specific use programs.
Measure Temperature using Thermistor Thermistors are widely used because of their sensitivity, small size, ruggedness and low cost.Thermistors have an electrical resistance that varies non-linearly with temperature.easure Temperature using Thermistor Thermistors are widely used because of their sensitivity, small size, ruggedness and low cost.Thermistors have an electrical resistance that varies non-linearly with temperature.
They include the thermal expansion of solids or liquids with temperature, and the change in pressure of a gas on heating or cooling. Radiation-type thermometers measure the infrared energy emitted by an object, allowing measurement of temperature without contact. Most metals are good conductors of heat and they are solids at room temperature. Mercury is the only one in liquid state at room temperature, and has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. This is the reason behind mercury being used in thermometer. Some of the principles of the thermometer were known to Greek philosophers of two thousand years ago.