KiVibe Miniature triaxial accelerometer sets benchmark for structural dynamics testing

Structural dynamics testing is essential in many engineering fields where space is limited and lightweight structures are required especially in automotive and aerospace applications. Accelerometers are mounted on key points of a test object – for instance on satellite components such as frames, antennas or optics or on various points of an electric powertrain of a car – to measure vibrations during product testing. However, lightweight structures with tight spaces pose a major challenge: if a sensor is too heavy, the frequency response of the unit under test can be distorted – creating misleading results. The new KiVibe Miniature triaxial IEPE accelerometer provides a superior solution for such applications.

High performance in demanding environments

This groundbreaking miniature triaxial accelerometer combines IEPE (Integrated Electronics Piezo-Electric) technology, internal case isolation, and low magnetic field sensitivity. These features ensure an excellent signal-to-noise ratio and reliable operation in harsh environments, including powertrain applications. The broad frequency bandwidth (0.3 to 10.9 kHz ±5%) of KiVibe Miniature enhances vibration analysis with 10 kHz response (±5%) on the main axes, the new miniature triaxial IEPE accelerometer ideally supports high frequency resonance evaluation. Furthermore, it features low base strain and an ultra-low thermal sensitivity shift (±5%) over a temperature range of –55°C to 125°C (–67°F to 257°F).

Ultra-compact, high-performance miniature triaxial IEPE accelerometer

The innovative triaxial IEPE accelerometers in the KiVibe Miniature series – with measuring ranges of 100, 250, 500, and 1,000 g – owe their high performance to special piezoelectric crystals and low-noise cabling. The lab-grown PiezoStar crystals from Kistler provide exceptional benefits, minimizing thermal sensitivity shift and ensuring stable measurements even under temperature variations. The specially engineered cable was chosen for its strength, lightweight design, and flexibility, ensuring easy installation in tight spaces. This cable features a very small bending radius and a specially developed cable attachment enabling effortless mounting.

The KiVibe Miniature triaxial accelerometer comes with a sealed titanium housing and supports – thanks to the low-outgassing features (accelerometer, cable and connector) – vacuum and space testing applications. Additionally, the accelerometer is TEDS-compatible (Transducer Electronic Data Sheet), streamlining configuration and calibration with signal conditioning and DAQ devices. This reduces installation time and prevents manual input errors.

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