MMA7341LCR2

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MMA7341LCR2 application field and working principle

The MMA7341LCR2 is a three-axis, low-power, mechanical, acceleration sensor. It is designed to accurately measure and detect dynamic acceleration, tidal accelerations, shock acceleration, and gravity acceleration along the three orthogonal axes. The sensor can detect both static and dynamic motions, and therefore can be used to detect tilt, motion, and vibration.

The MMA7341LCR2 is a versatile device that finds applications in many industries such as automotive, gaming, robotics, industrial, aerospace, medical, consumer electronics, etc. Its low excitation current makes it highly suitable for battery powered applications. Its small size and high levels of performance also make it attractive for mounting in small spaces.

Working Principle

The MMA7341LCR2 uses an integrated capacitive accelerative sensing element integrated on a chip. The capacitive sensing element consists of three sensing electrodes, located along the three orthogonal axes X, Y, and Z. These electrodes are connected to a differential capacitance circuit, which detects the movement of the sensing element. The input signal is then amplified, buffered, and conditioned to convert the capacitance variations to voltage. The output is proportional to the acceleration of the sensor in terms of m/s2.

This accelerometer features a very wide frequency bandwidth, ranging from DC to 400Hz. It is extensively used for sensing motion, shock, and vibration in different audio-video, security, automotive, computing and robotics applications. The MMA7341LCR2 has a wide operating temperature range from -40 to +125 degrees Celsius and can be used in extreme environmental conditions.

Conclusion

The MMA7341LCR2 is a reliable and low-cost three-axis accelerometer with wide application capabilities. It is small enough to be used in many space-constrained applications, yet powerful enough to detect both static and dynamic acceleration. Its wide frequency bandwidth and operating temperature range make it a good choice for many types of sensing applications.

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