MMA9559LR1 Sensors, Transducers

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Motion sensors, also known as accelerometers, are a type of sensor that detects changes in physical motion. They are used in many applications, such as monitoring the movements of human bodies, measuring acceleration, and detecting vibration in machines. The MMA9559LR1 is a particular motion sensor specifically designed for use in smartphones and other devices with a limited form factor. In this article, we will discuss the MMA9559LR1 motion sensor’s application field and working principle.

The MMA9559LR1 is a 3-axis, low-profile motion sensor, and works by providing sensing of acceleration, angular rate and magnetic forces in three mutually perpendicular directions.

The device has a small footprint of 0.7mm x 0.7mm with a total height of 2mm, and can measure a range of accelerations from 1.5g to 4g. It can also measure angular rates up to 1.0 radian per second up to 500dps (degrees per second). The device can report results up to 32 samples per second for a three-axis operation.

The MMA9559LR1 is specifically designed for use in compact, battery-powered, electronic devices. It is ideal for applications such as smartphones, tablets, remote control toys, and wearable devices that require a lightweight, low-power motion sensing solution.

The working principle of the MMA9559LR1 motion sensor is based on the concept of capacitance change. As the device is subject to acceleration, angular rate and magnetic forces, it displaces mass which changes the capacitance, allowing the change to be sensed. The device is able to distinguish between acceleration, angular rate and magnetic forces by evaluating the differences in the capacitance changes in the three directions.

The device has both a digital and analog output in order to provide the user with accurate readings and rapid response. The device also has an on-board temperature sensor for temperature compensation. It also includes powerful calibration features, such as dynamic offset, temperature drift compensation, and adjustable sensitivity.

The MMA9559LR1 includes several built-in safety features, such as a built-in watch-dog timer and a low-power mode. Furthermore, the device is RoHS compliant and has electrostatic discharge protection, making it suitable for use in a wide range of environments.

In conclusion, the MMA9559LR1 is an ideal motion sensor for use in small, battery-powered devices, as it is both low-profile and low-power. It can measure acceleration, angular rate and magnetic forces in three different directions, and provides fast and accurate results. It also includes powerful calibration features and integrated safety features, making it suitable for use in a wide range of applications.

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