High-temperature pressure and acceleration sensors for efficient jet engine testing

Reliable and stable operation of jet engines is crucial for safety. A jet engine undergoes several measuring campaigns throughout its lifecycle to prove that it meets all the requirements.

Our single-crystal PiezoStar ultra-high temperature pressure and acceleration sensors are specifically designed for jet engine testing, which is performed during the research and development phase. It includes vibration and pressure pulsation measurements in hot environments up to 700°C (1.300°F) and provides the engineering team with important information about the operating condition of the jet engine as well as with a basis for further developments.

This particular type of testing is performed after manufacture and also after any major overhaul work. Later in the jet engine's lifetime, for example, the same high-temperature sensors are used in an end-of-line performance test to verify proper functioning of the engine.

High-temperature capability up to 1000 °C

Pressure and acceleration sensors have been thoroughly tested at well over 700 °C (1 300 °F) uncooled and can be used up to 1000 °C for short duration. They are not pyroelectric and show no popcorn effect. This guarantees reliable and stable results over temperature and time.

Isolated ground, differential design

The internal isolated ground effectively interrupts any ground loop. At the same time, the differential design ensures maximum resilience against electromagnetic interferences. High-quality signals with low noise levels are the direct result.

Robust design for longtime applications

The measuring chain is specifically designed for longtime applications in harsh environments – as proven by Highly Accelerated Life Testing (HALT) and application-based experience.