Accelerometer Accessories

Symmetric mounting can help minimize errors caused by unwanted sensor vibrations. To achieve this, it is important that the weight of the sensor, including all mounting components, is significantly lower than that of the test object. As a general rule, the sensor should not exceed 10% of the weight of the test object.

In situations where there are high levels of transverse vibration, it is crucial to minimize any misalignment between the sensor axis and the measuring directions. When using screw mounting, it is important to ensure that the screw length does not exceed the threaded hole's depth, and there should be no gap under the sensor.

• Stud Mounting: This method provides a rigid connection between the accelerometer and the structure, which can result in a more accurate measurement of low-frequency vibrations. However, the stud can act as a filter, which can affect the frequency response of the accelerometer. Also, stud mounting can be difficult to implement in certain applications, especially those with limited space or accessibility.
• Magnetic Mounting: This method provides a flexible connection between the accelerometer and the structure, which can result in a more accurate measurement of high-frequency vibrations. However, the magnetic field can introduce electromagnetic interference, which can affect the frequency response of the accelerometer. Also, magnetic mounting can be challenging to use in environments with high magnetic fields, such as near electrical equipment.
• Adhesive Mounting: This method provides a flexible connection between the accelerometer and the structure, which can result in a more accurate measurement of high-frequency vibrations. However, the adhesive can introduce damping, which can affect the frequency response of the accelerometer. Also, adhesive mounting may not be suitable for high-temperature environments or for structures with rough surfaces.
• Triaxial Mounting Cube: This method is used to measure vibration in three orthogonal directions simultaneously, which is useful for determining the direction and magnitude of the vibration. However, the triaxial mounting cube can add mass to the system, which can affect the frequency response of the accelerometer. Also, the cube can be difficult to mount in certain applications.
• Accelerometer Probe: This method involves using a probe to measure vibration at a specific point on the structure. It is useful for measuring vibration at locations where traditional accelerometer mounting methods cannot be used. However, the probe can be affected by its own mass and stiffness, which can affect the frequency response of the measurement. Also, the probe may not be suitable for measuring vibration over a large area.