Capacitive Temperature & Vibration Composite Sensor

The Capacitive Temperature & Vibration Sensor is a precision multi-parameter sensor designed to simultaneously measure vibration and temperature within a single compact device. By combining capacitive vibration sensing technology with integrated temperature measurement, this sensor enables engineers to collect synchronized mechanical and thermal data from the same measurement point, improving accuracy and simplifying system design.

Capacitive sensing technology is particularly well suited for low-frequency and low-amplitude vibration measurement. Unlike piezoelectric sensors, which excel at high-frequency dynamic signals, capacitive vibration sensors are capable of measuring static and near-static acceleration, making them ideal for applications such as inclination detection, slow structural movement, and low-frequency vibration monitoring. When combined with temperature measurement, this sensor provides valuable context for understanding how thermal conditions influence mechanical behavior.

Measurement Principle

The vibration sensing element operates on a capacitive principle, where changes in acceleration cause a microscopic displacement of an internal sensing mass. This displacement alters the capacitance between sensing electrodes, producing a proportional electrical signal. Because the measurement is based on capacitance rather than charge generation, the sensor is capable of accurately detecting very low-frequency vibration and static acceleration.

The integrated temperature sensor continuously monitors the local thermal environment. This allows temperature data to be recorded alongside vibration signals, supporting compensation, correlation analysis, and more reliable interpretation of results.

Key Characteristics

Capacitive temperature and vibration sensors offer excellent resolution at low frequencies, high stability, and minimal drift over time. Their ability to measure both static and dynamic motion makes them suitable for applications where traditional vibration sensors may not perform effectively.

The compact and lightweight design enables easy integration into space-constrained installations, embedded systems, and test assemblies. Low power consumption supports long-term monitoring and continuous operation. The sensor’s predictable output and stable performance make it well suited for both laboratory testing and industrial field applications.

Typical Applications

Capacitive temperature and vibration sensors are commonly used in:

• Structural Monitoring: Detecting low-frequency vibration, tilt, or slow movement in structures

• Industrial Equipment Monitoring: Measuring vibration behavior while tracking temperature changes

• Transportation & Automotive Testing: Monitoring component motion and thermal effects

• Precision Machinery: Applications requiring detection of small movements or low-speed vibration

• Research & Education: Experimental studies involving vibration, motion, and thermal interaction

In many of these applications, the ability to correlate vibration and temperature data provides deeper insight into system behavior and performance.

Integration with Measurement Systems

The capacitive temperature and vibration sensor is designed for seamless integration with Dynatronic data acquisition and monitoring systems. When combined with other measurement channels such as force, strain, or displacement, it supports comprehensive multi-parameter analysis. This synchronized approach helps engineers identify root causes, validate designs, and monitor system health more effectively.

Reliable Low-Frequency Motion Insight

By combining capacitive vibration measurement with integrated temperature sensing, this sensor delivers reliable, high-resolution data where low-frequency accuracy and thermal context are critical. It is a practical solution for engineers who require precise motion and temperature information to support testing, monitoring, and research applications in real-world environments.