Acceleration Sensors

Acceleration sensors, commonly known as accelerometers, are devices designed to measure the acceleration or vibrations of an object or system. These sensors detect changes in velocity per unit of time and provide essential data in various industrial, scientific and technological applications.

General Features:

• Measurement Axes:
  • Uniaxial: They measure acceleration in a single axis.
  • Biaxial: Accelerations are detected in two perpendicular axes.
  • Triaxial: They capture accelerations on all three axes X, Y and Z, providing a complete representation of motion in three-dimensional space.
• Detection Technologies:
  • MEMS Capacitive Accelerometers: They use microelectromechanics to measure changes in capacitance due to acceleration. They are compact, inexpensive and suitable for low-frequency applications.
  • Piezoelectric Accelerometers: They use piezoelectric materials that generate an electrical charge proportional to the applied acceleration. They are ideal for measuring high-frequency vibrations.
  • Piezoresistive Accelerometers: Based on the variation of resistance in piezoresistive materials under acceleration, they are suitable for measuring static and dynamic accelerations.

• Measuring Ranges: Available in a variety of ranges from fractions of a 'g' (acceleration due to gravity) to thousands of 'g', adapting to multiple applications, from the detection of subtle movements to intense impacts.
• Response Frequency: The ability to measure accelerations in different frequency bands allows its use in applications ranging from slow motion to rapid vibrations.
• Formats and Construction: Available in a variety of sizes and materials, from compact plastic housings to robust metal structures, designed to withstand harsh environmental conditions.

Considerations for Selecting an Acceleration Sensor:

• Suitable Measuring Range: Select a sensor with a range that covers the maximum accelerations expected in the specific application.
• Sensitivity and Accuracy: Determine the sensitivity needed to detect the required acceleration levels, ensuring accurate measurements.
• Environmental Conditions: Consider factors such as temperature, humidity and exposure to corrosive elements to choose a sensor with adequate protection.
• Signal Compatibility: Ensure that the sensor output is compatible with the data acquisition or control systems used.

In summary, acceleration sensors are versatile and essential tools for measuring motion and vibration in a wide range of applications, and their correct selection is essential to ensure the accuracy and reliability of measurements.