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…
Learn all about temperature sensors and each of their advantages and disadvantages. Temperature Sensors Temperature sensors are among the most commonly used sensors. All types of equipment use temperature sensors, ranging from computers, cars, kitchen appliances, air conditioners, and (of course) home thermostats. The five most common types of temperature sensors include: Thermistor Thermocouple RTDs…
There are four main contact temperature-sensing devices available, divided in three families: thermocouples (self-generating sensors), resistance temperature detectors and thermistors (resistive sensors), and temperature-transducing ICs (PN or Semiconductive). These sensors translate the temperature into a reference voltage, resistance or current, which is then measured and processed and a numerical temperature value is computed. Types of…
