ADXRS290BCEZ-RL7

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Motion Sensors - Gyroscopes

The ADXRS290BCEZ-RL7 is a gyroscope motion sensor, specifically designed to sense angular rate in robotics and other motion or tilt detection applications. This device measures the rotational rate or angular velocity of an object in relation to space, as opposed to linear accelerations that are measured in an accelerometer.

How does a Gyroscope Work?

A gyroscope is a motion sensing device that consists of a rotating wheel mounted inside two or three gimbals (rotational axes) that are mounted inside a housing. When the wheel is spun, it creates angular momentum around its axis of rotation. Any angular rate about the axis of rotation will cause the wheel to spin in the opposite direction, which is measured and read by the sensor.

Operation Principles

The ADXRS290BCEZ-RL7 utilizes a two-gimbal construction to counter the effects of tilt and angular rate. It has two sensing elements that measure angular rate perpendicular to each other in the same plane. These sensing elements are contained within a silicon MEMS (Micro Electro-Mechanical System) package, which is isolated from temperature variations that could affect its performance. The sensing elements are arranged perpendicular to each other and then connected to a series of operational amplifiers and a comparator. Each amplification stage and the comparator provide a signal to indicate the angular rate.

Performance Characteristics

The ADXRS290BCEZ-RL7 has a wide range of performance characteristics, making it suitable for a variety of applications. It can measure angular rates up to 600°/s, and is highly accurate with rates greater than 100°/s only having a maximum error of 0.1%. It also has excellent temperature stability and a low current operation with only 1.2mA of current drawn. Finally, the adXRS290BCEZ-RL7 has excellent shock resistance, withstanding shocks up to 4,500g.

Applications

The ADXRS290BCEZ-RL7 is ideal for robotics applications due to its high accuracy, low current operation, and excellent shock resistance. It is also suitable for motion or tilt detection applications in general. Additionally, the ADXRS290BCEZ-RL7 may be used in applications such as vehicular, industrial, and other types of control and guidance systems.

Conclusion

In conclusion, the ADXRS290BCEZ-RL7 is a high performance gyroscope motion sensor that is suitable for a wide range of robotics and motion or tilt detection applications. Its small size and low current operation make it ideal for applications where space and power is at a premium. Its excellent shock resistance and temperature stability make it the perfect choice for harsh environments. Finally, its high accuracy with angular rates and wide operating range make it an ideal choice for a variety of motion sensing applications.

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