pcdoctor said:Hi,
I had another go at it and i got the correct answer
Sometimes you have to look at things twice.
A Resistance Temperature Detector (RTD) is a type of temperature sensor that works by measuring the change in electrical resistance of a material as the temperature changes. The most common material used for RTDs is platinum, but they can also be made of nickel, copper, or other metals.
An RTD works by measuring the electrical resistance of a material as the temperature changes. As the temperature increases, the resistance of the material also increases. This change in resistance is then converted into a temperature reading.
Some advantages of using an RTD include high accuracy, good stability over time, and a wide temperature range. RTDs also have a linear response to temperature changes, making them easy to calibrate and use in various applications.
RTDs are commonly used in industrial and scientific settings for temperature measurement and control. They are also used in household appliances, such as ovens and refrigerators, and in automotive and aerospace industries for engine and environmental monitoring.
When choosing an RTD, it is important to consider factors such as temperature range, accuracy requirements, and environmental conditions. Platinum RTDs are the most accurate and have a wide temperature range, but they can be more expensive. Nickel and copper RTDs are less expensive but have a smaller temperature range and may not be as accurate. It is best to consult with an expert to determine the best RTD for your specific application.