High-frequency vibration sensors

High-Frequency Vibration Sensors – Precise Vibration Analysis at High Frequencies

High-frequency vibration sensors are designed for the measurement of vibrations and fast dynamic movements. They are used wherever standard vibration sensors are insufficient due to limited bandwidth.

These sensors are engineered to accurately capture high-frequency signals in the kHz range and beyond. This makes them particularly suitable for demanding applications in machine monitoring, testing and measurement, aerospace, as well as research and development.

High-frequency vibration sensors provide detailed insights into dynamic processes and enable early detection of faults that primarily occur in the high-frequency range.

How High-Frequency Vibration Sensors Work

High-frequency vibration sensors are typically based on piezoelectric measurement principles, which are particularly well suited for detecting fast vibrations.

A piezoelectric element generates an electrical charge when subjected to mechanical stress. In the case of high-frequency vibrations, this element responds very quickly, allowing precise conversion of mechanical motion into an electrical signal.

Key characteristics of these sensors include:

• High natural frequency
• Wide bandwidth
• Fast signal processing
• High sensitivity to dynamic signals

The acquired measurement data can be used to analyze vibration amplitude, frequency spectra, and transient events.

Typical Applications

High-frequency vibration sensors are used in many specialized applications:

• Vibration analysis and diagnostics of high-speed machinery
• Bearing monitoring and early fault detection
• Testing and material testing
• Aerospace applications
• Research and development
• NVH analysis (Noise, Vibration, Harshness)
• Quality control in production
• Monitoring of turbines and rotating systems

Advantages of High-Frequency Vibration Sensors

• Detection of high-frequency vibrations
  Ideal for applications with fast and complex movements.
• Wide bandwidth and high dynamic range
  Reliable measurement even in the kHz range.
• High signal quality
  Accurate and low-noise measurement data for detailed analysis.
• Early fault detection
  High-frequency components often provide early indications of damage.
• Robust design for industrial applications
  Suitable for demanding environments.

How to Choose the Right High-Frequency Vibration Sensor

Selecting a suitable sensor requires a detailed analysis of the measurement task, particularly with regard to high-frequency components.

• Frequency range and bandwidth
  The sensor must be capable of reliably capturing the relevant high frequencies. A sufficiently high upper cutoff frequency is essential.
• Sensitivity and dynamic range
  Depending on the application, a balance between high sensitivity and a wide measurement range is required.
• Natural frequency of the sensor
  The natural frequency should be significantly higher than the frequency range to be measured to avoid distorted results.
• Mounting and installation
  Stable and resonance-free mounting is especially important to accurately capture high-frequency signals.
• Signal processing and interfaces
  The sensors must be combined with suitable measurement systems capable of processing high-frequency signals.
• Environmental conditions
  Temperature, vibrations, and mechanical stresses can affect sensor performance and should be taken into account.
• Cabling and connection technology
  High-quality cables and connectors are essential to prevent signal loss at high frequencies.

We are happy to support you in selecting the optimal high-frequency vibration sensor for your application. Contact us!