Resistant Temperature Detector Element

Temperature Sensors

‘The world is getting warmer day by day.’ This sentence has started to crop up every now and then in our day to day lives. But seldom do we wonder what it means. What is warmer? How warm is warm? Is it hotter than hot, or just hotter than cold? To our human senses, temperature…

Resistance Temperature Detector (RTD)

Resistance Temperature Detectors (RTD) are temperature measuring transducers used in industrial applications. RTDs are simple in construction with higher accuracy and repeatability and which are used in the applications below 600°C. Principle: As the name suggests the RTDs are temperature sensitive resistors. The resistance temperature detector (RTD) measures the electrical conductivity as it varies with temperature. The electrical…

Probe Thermometers: Can They Take the Heat?

Probe thermometers aren’t perfect. One of the first strikes against them comes from the manufacturers themselves, who promote the “set it and forget it” approach—suggesting that once you set the target doneness temperature, you can walk away until the alarm sounds. In our experience, there’s no substitute for checking on roasting meats visually, tactilely, and—as they…

Thermistors Explained

Thermistor is a solid state temperature sensing device that acts a bit like an electrical resistor but is temperature sensitive. Thermistors can be used to produce an analogue output voltage with variations in ambient temperature and as such can be referred to as a transducer. This is because it creates a change in its electrical properties…

Uses for a Temperature Sensor

Temperature sensors are used just about everywhere. There are in the homes we live in, the cars we drive, the schools we learn in. They are even in planes, trains and boats. You will also find them in all sorts of electrical appliances and electronic devices. Refrigerators, stoves, hot water tanks as well as computers,…

Types and Classes of RTD

2-wire configuration: This type of configuration has the least accuracy. There is no wire provided for compensation. Hence, in this configuration, error is more.An alternate method to compensate lead wire resistance is by connecting a 2 or 3-wire RTD to a transmitter. A transmitter converts RTD resistance into a low current signal and then transmits it…

Working Principle of Temperature Sensor and Its Application

Thermocouples, Resistance Temperature Detectors (RTDs), Thermistors, Infrared, and Semiconductor Sensors. What is a Temperature Sensor? Usually, a temperature sensor is a thermocouple or a resistance temperature detector (RTD) that gathers the temperature from a specific source and alters the collected information into an understandable type for an apparatus or an observer. Temperature sensors are used…