MMA6222AKEGR2

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The MMA6222AKEGR2 accelerometer is an easy to use, integrated motion sensor that measures changes in the environment. It is most commonly used in applications involving the measurement of vibration, tilt, and acceleration of motion.

Overview

The MMA6222AKEGR2 is an easily implemented, two-axis motion-sensing device with a sensitivity of over 40 mV/g. In addition to a small size and low power consumption, it is equipped with a threshold window generator, which can detect motion signals more quickly and accurately than other similar devices. With a high vibration rejection, non-linearity, and a frequency response up to 800 Hz, it is suitable for a variety of sensing applications.

Applications

The MMA6222AKEGR2 is a highly versatile motion sensor with a wide variety of applications. It can be used to measure vibration in a variety of machinery, as well as for tilt and acceleration sensing. Examples of its use include engine vibration monitoring, vehicle and machine tilt sensing, machinery bearing fault detection, consumer electronics vibration control, and gaming controllers.

Working Principle

The MMA6222AKEGR2 accelerometer operates on the principle of capacitive sensing. Its detection technology works by measuring the capacitance between a printed circuit board (PCB) that is rigidly attached to the application surface and a video circuitry pattern on the PCB that is vibrated by the application acceleration. This capacitance is used to calculate the acceleration intensity and direction of the application surface.

The accelerometer has two integrated electrodes that measure the capacitance. One electrode is attached to the application surface to which the accelerometer is installed and the other electrode is integrated in the PCB. When acceleration is applied to the application surface, the PCB vibrates. This changes the capacitance between the electrodes and thus the current flowing through them, which is used to determine the direction and magnitude of the acceleration.

In addition to sensing the acceleration of an application, the MMA6222KEGR2 also has an integrated threshold window generator that can detect and measure accelerations below a set threshold. This feature is especially useful for applications that require the detection of subtle motions or accelerations, such as tilt sensing in consumer electronics or gaming controllers.

Conclusion

The MMA6222KEGR2 accelerometer is a highly versatile, integrated motion sensing device that is suitable for a wide variety of applications. Its capacitive sensing technology allows it to accurately sense and measure accelerations of an application surface, even at low levels. In addition, its threshold window generator enables it to detect and measure subtle motion signals, making it ideal for tilt sensing, vibration monitoring, and consumer electronics applications.

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