Thermocouple

RTDs are completely passive sensing elements, requiring the application of an externally-sourced  electric current in order to function as temperature sensors. Thermocouples, however, generate their own electric potential. In some ways, this makes thermocouple systems simpler because the device receiving the thermocouple’s signal does not have to...
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Manometer

Manometer is a very simple device use to measure a pressure. In manometer U shape glass tube fill with water or mercury . When gas pressure is applied proportionately hight of fill fluid is shifted and we can measure pressure. That is why pressure is...
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