How do I choose an accelerometer sensor?

How do I choose an accelerometer sensor?

Simple Steps to Selecting the Right Accelerometer

1. Technology Selection. The first step in the selection process is to determine the type of measurement to be made.
2. Type of Measurement.
3. General Considerations.
4. Vibration.
5. Shock.
6. Motion, Constant Acceleration, and Low-Frequency Vibration.
7. The Environment.
8. Accelerometer Weight.

Which accelerometer should I use?

In most testing environments, we recommend using an IEPE accelerometer with TEDS. The IEPE constant current powered accelerometer provides a clean signal and removes many of the noise sources that are common with other types of accelerometers.

Which sensor specifications will be considered important while selecting the accelerometer?

Bandwidth, or frequency response, is the most important parameter in accelerometer selection. You won’t get accurate results if the bandwidth of the accelerometer doesn’t include the frequency of the motion, vibration, or shock you are hoping to measure.

Why accelerometer is preferred?

The benefits of an accelerometer include linearity over a wide frequency range and a large dynamic range. Figure 1. Accelerometers are versatile sensors used for high or low frequency vibration as well as shock measurements. Another sensor you can use to measure vibration is the proximity probe.

What are the applications of accelerometer?

Accelerometers can be used to measure vibration on cars, machines, buildings, process control systems and safety installations. They can also be used to measure seismic activity, inclination, machine vibration, dynamic distance and speed with or without the influence of gravity.

What are the different types of accelerometers?

BASIC ACCELEROMETER TYPES There are two classes of accelerometers in general: AC-RESPONSE DC-RESPONSE In an AC-response accelerometer, as the name implies, the output is ac coupled. An AC coupled device cannot be used to measure static acceleration such as gravity and constant centrifugal acceleration, for example.

Why is it important to choose a damped accelerometer?

Damping characteristics can be an important factor in choosing an accelerometer. In applications where the mechanical input may contain very high frequency input (or excite high frequency response), a damped accelerometer can prevent sensor ringing (resonance) and preserve or improve dynamic range.

Can a DC coupled accelerometer be used for static acceleration?

An AC coupled device cannot be used to measure static acceleration such as gravity and constant centrifugal acceleration, for example. It is only suitable for measuring dynamic events. A DC-response accelerometer, on the other hand, is DC coupled, and can respond down to zero Hertz.

How does an AC response accelerometer work?

The most common AC-response accelerometers use piezoelectric elements for their sensing mechanism. Under acceleration, the seismic mass of the accelerometer causes the piezoelectric element to “displace” a charge, producing an electrical output proportional; to acceleration.