How Thermocouple works A thermocouple is a temperature measuring device which is formed when two dissimilar metals are joined together. When both the ends are joined together continuous current flows through the wires when one end is heated. This is called thermoelectric effect or see back effect. When there is difference in temperature at both…
A resistance temperature detector(RTD) is a temperature measuring device made of materials such as platinum whose resistance change is known at different temperatures. The R v/s T curve is used to determine the temperature. The platinum RTD’s are the most stable, linear and accurate among all the RTD’s The Common material used to make RTD’s…
A German physician turned physicist named Thomas Johann Seebeck took two different metals, with one at a higher temperature than the other, and made a series circuit by joining them together to form a junction. He found that by doing so he was able to generate an electromotive force (emf). Emfs are voltages. Seebeck found…
Thermocouples provide measurement over a large temperature range–from 200 to 2600 degrees Celsius. This allows thermocouples to be used in a variety of circumstances in different industries. Their vast temperature range also allows them to be used at high temperatures where most temperature gauges do not work. Direct Contact Another advantage of thermocouples is they…
Hydroponic systems benefit greatly from gathering more information as this gives the grower the ability to better diagnose problems and better understand the evolution of their hydroponic crops. Usually growers limit the information they gather to single sensor measurements carried out either at different points during the day or even only when nutrient solutions need…
Coolant Temperature Sensor – How it Works The coolant temperature sensor (CTS) is often located near the thermostat of a vehicle’s engine so that it can operate at its optimum level. The tip of the coolant temperature sensor is generally located directly near the coolant of the engine. This temperature sensor works by measuring the…
Contact Type Temperature Sensor The contact type temperature sensor is in physical contact with the substance or object. These sensors are used to measure the temperature of solids, liquids or gases. Non-contact Type Temperature Sensor Non-contact type temperature sensors are used to detect temperature by interrupting a part of the emitted IR energy of the…
Thermocouples are temperature sensors that are made from two metal alloys. When the two metals are brought together to form a junction, a voltage is generated when there are temperature differences between them. This is known as the Seebeck effect. The Seebeck Effect German physician turned physicist Thomas Johann Seebeck discovered the Seebeck effect. He…
Thermocouples are largely used in the fields of science and electronics as a temperature sensor, which are quite easy to handle and use. The functioning is based on the Seebeck effect, common in case of electrical conductors, that experiences a temperature gradient along their length. These sensors are simple, rugged, do not need batteries, and…
