High-temperature vibration sensors

High-Temperature Vibration Sensors – Reliable Vibration Measurement Under Extreme Conditions

High-temperature vibration sensors are specially designed devices for measuring vibrations and oscillations in high-temperature environments. They are used wherever standard vibration sensors reach their limits due to thermal stress.

These sensors are engineered for extreme operating conditions and enable reliable condition monitoring of machines and systems even at temperatures of several hundred degrees Celsius. Typical application areas include power generation, turbine monitoring, industrial high-temperature processes, as well as the oil and gas industry.

Thanks to their robust construction and the use of temperature-resistant materials, high-temperature vibration sensors deliver precise measurement data even under the most demanding conditions.

How High-Temperature Vibration Sensors Work

High-temperature vibration sensors are typically based on piezoelectric measurement principles that are specifically optimized for high temperatures. In this process, piezoelectric materials convert mechanical vibrations into electrical signals.

Compared to standard sensors, high-temperature versions use:

• Temperature-resistant sensing elements
• Special cables and connectors
• Robust housing materials such as stainless steel or special alloys

The sensors capture vibrations and provide measurement values such as:

• Acceleration
• Vibration velocity
• Frequency response

Even at high temperatures, signal quality remains stable, enabling reliable analysis of machine conditions.

Typical Applications

High-temperature vibration sensors are used in many demanding industrial sectors:

• Monitoring of turbines and generators
• Power generation (e.g., power plants)
• Oil and gas industry
• Steel and metal processing
• High-temperature industrial processes
• Machinery monitoring under extreme conditions
• Chemical and petrochemical plants
• Research and development

Advantages of High-Temperature Vibration Sensors

• Reliable measurement at high temperatures
  Designed for extreme thermal stress.
• Robust and durable construction
  Resistant to heat, vibrations, and industrial environments.
• High measurement accuracy even under extreme conditions
  Stable and repeatable measurement results.
• Ideal for critical applications
  Monitoring of systems with high requirements for safety and availability.
• Flexible integration into monitoring systems
  Compatible with existing measurement and monitoring systems.

How to Choose the Right High-Temperature Vibration Sensor

Selecting a suitable sensor requires a detailed analysis of the operating conditions, particularly thermal stress and measurement requirements.

• Temperature range
  The sensor must be designed for the maximum temperatures encountered. Short-term temperature peaks should also be taken into account.
• Measured variable and frequency range
  Depending on the application, it should be determined whether acceleration, velocity, or other parameters need to be measured. The frequency range must match the application.
• Sensitivity and signal quality
  Even at high temperatures, the sensor should provide sufficient sensitivity and a good signal-to-noise ratio.
• Design and mounting
  Mechanical integration and mounting are crucial for reliable measurements, especially considering thermal expansion.
• Cables and connection technology
  High-temperature-resistant cables and connectors are necessary to ensure reliable signal transmission.
• Environmental conditions
  In addition to temperature, factors such as vibrations, dust, humidity, or chemical influences must also be considered.
• Long-term stability
  For continuous monitoring, stable sensor performance over long periods is essential.

The experts at Althen Sensors & Controls are happy to support you in selecting the right high-temperature vibration sensor—from specification to integration into your measurement system. Contact us!