Pressure


Dynamic Pressure

T-Series

ALLGEMEINES

R&D measurements in modern, highly integrated and compact apparatus are among the most challenging applications for sensors. The mechanical integration is the bottleneck for many available sensors due to the size. Adverse physical influences such as temperature, heat flux or mechanical stresses are subject to great variation due to experimental character of R&D. The T-Series is developed for these complex conditions which is reflected in its miniature housing and design features.

The T-Series is a new generation of sensors which incorporates the Piezocryst technology portfolio in the smallest package so far. With the robustness of the S-Series, only 3.5 mm mounting diameter and the exceptional signal quality of GaPO4 crystal elements, the sensors of the T-series allow to study previously not accessible components. The sensors endure high temperature and pressure gradients and still produce a reliable, stable output.

FEATURES

  • Miniature Design M3.5x0.35
  • Pressure range up to 500 bar
  • High temperature stability up to 400°C
  • Sichere Messkampagnen durch geringste Serienstreuung
  • Virtually constant sensitivity over the entire lifetime

Under a high temperature gradient, the outstanding material properties of single crystalline GaPO4 sensing elements can reach their full potential (Crystal Technology): There are no false signals caused by temperature changes and the high internal resistance of GaPOallows an accurate representation of the pressure curve at highest temperatures. The transverse piezoelectric effect is used to optimize the sensor’s signal-to-noise ratio, optimally adapting the sensitivity of the sensors to the required pressure range.

To achieve highest data quality, it is also necessary that any distortion of the mounting bore does not cause a mechanical disturbance of the sensing elements. For this purpose the so-called Double ShellTM housing is used. It consists of two integrated housing elements, in which the outer element absorbs mounting bore disturbances and the inner element remains force-free. This way the sensing elements only "feel" the purest mechanical pressure signal without error, and the measuring signal is largely free of mechanical disturbances.

This technology is available in different sizes and "packaging" variations for optimal installation under a variety of conditions.

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