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High-temperature strain gauges for demanding measurements
High-temperature strain gauges are designed to measure mechanical strain in components and structures exposed to elevated temperatures. Althen offers QF, ZF and EF Series strain gauges, with selected models suitable for temperatures up to 300°C.
Why is temperature important in strain measurements?
Temperature changes can affect strain gauge resistance, the test material and the measurement installation. Thermal expansion, apparent strain and temperature-dependent changes in gauge characteristics may influence measurement accuracy. Appropriate strain gauge selection and temperature compensation are therefore essential.
What should you consider when selecting a high-temperature strain gauge?
- Operating temperature: Check the maximum temperature and whether the measurement is short-term or continuous.
- Test material: Consider thermal expansion and compatibility with the strain gauge's temperature compensation characteristics.
- Installation method: Select an adhesive, bonding process and protective materials suitable for the required temperature.
- Lead wires and connections: Ensure that cables, solder joints and terminals can withstand the operating conditions.
- Measurement accuracy: Consider temperature-induced measurement errors and the available compensation methods.
Always consult the individual product datasheet for the applicable temperature limits and installation requirements.
Technical guides & resources
Let's discuss your high-temperature strain measurement application
Planning strain measurements at elevated temperatures? Our specialists can help you select the right strain gauge, assess installation requirements and consider temperature compensation for reliable measurement results.