1. Pt100 thermal resistance profile
Pt100 is a platinum resistance temperature sensor whose name "pt" represents platinum and "100" indicates a resistance value of 100 at 0°c. It is one of the rtds (resistance temperature detector, interception temperature monitor) and is one of the core elements in the field of industrial temperature measurement, with characteristics such as good linearity, high stability and wide measurement (-200°c ~ + 850°c)。
2. Pt100 thermal retardation works
The core principle of pt100 is based on the temperature-variable nature of electrical resistance of metallic platinum, which is associated with temperature in accordance with iec 60751。
3. Structure and type of pt100
Pt100 can be classified as:
Pt100 measurement circuits (two-line, three-line, four-line)
Pt100 is usually a three-line or four-line connection because of the electrical resistance of the conductive line that affects measurement accuracy:
Typical application scenario for pt100
6. Selection and maintenance of pt100
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Elements of a selection:
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Recommendation for maintenance:
Pt100 thermal resistance is the core sensor in the field of temperature measurement by virtue of its high accuracy, stability and linearity. This paper provides a detailed analysis of the pt100 working principles, the resistance-temperature relationship, measuring circuits and typical applications, and helps readers to understand their technical points. In areas such as industrial automation, medical equipment and scientific experiments, the correct selection and use of pt100 can significantly improve the reliability of temperature measurement systems。
