Thermistor

Een thermistor is een elektrische weerstand (component) waarvan de elektrische weerstand afhankelijk is van de temperatuur. Het woord thermistor is een samenvoeging van de Engelse woorden thermal en resistor. The word is a portmanteau of thermal and resistor.

This name is derived from the more descriptive term “thermally sensitive resistor”, the original name for these devices. A thermistor is an element with an electrical resistance that changes in response to temperature. All resistors have some dependency on temperature, which is described by their temperature coefficient. The term is a combination of. For electrical engineers faced with the task of managing one or more temperature detection circuits, choosing the right temperature sensing device for . K thermistor with a negative temperature coefficient.

De hele eenheid is ingegoten in een polyimide tube met thermisch geleidende epoxy. NTC thermistor gesoldeerd aan Nikkel Bifilar draadjes met polyester type isolatie. The diverse product range not only includes . Heat is generated by the applied voltage and current, and the resistance changes with the change of temperature. Polyimide Mini BetaCURVE High Humidity Probes (MRBD). Het geheel is ingegoten in een polyimide tube met thermisch geleidende epoxy.

Technically, all resistors are thermistors – their resistance changes slightly with temperature – but the change is usually very very small and difficult to measure. They are often used in applications such as fire alarms, refrigerators, ovens and boilers. They measure temperature by assessing the resistance passing through them and converting it into a . You should be able to recognise the circuit symbols for the thermistor and the LDR (light-dependent resistor), and know how the resistance of these components can be changed.

There are two types of thermistors , Positive Temperature Coefficient ( PTC) and Negative Temperature Coefficient (NTC). Thermistors are made so that the resistance changes . Variety of packages styles and sizes. These include high temperature thermistors , gauge drivers, sensors, and elements. Amphenol Advanced Sensors provides solutions to . While for most of the metals the resistance increases with temperature, the thermistors respond negatively to . The resistance of a PTC thermistor increases as the temperature increases.

In most RepRaps, a thermistor senses the temperature of the Hot End. Often a second thermistor senses the temperature of the Heated Bed. Good qualities of thermistors are a predictable, accurately known resistance value at . A custom made thermistor encapsulated into an easy to use cartridge package.

These device consists of a chip with two tinned nickel leads. Typical applications include temperature measurement, sensing and control and for on-board sensing or accurate remote .