We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.
Hardware

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What is a 3D Accelerometer?

By Mal Baxter
Updated: May 16, 2024
Views: 21,190
Share

A three-dimensional (3D) accelerometer is an electromechanical device that detects and measures non-gravitational accelerations. These forces can appear as motion, vibration, or orientation of people or equipment. Such forces include static and dynamic accelerations outside the range of normal gravity. This technology appears in many forms and applications, such as those used in video game controllers, smart phones, or pedometers for testing athletic performance. Accelerometers use three-dimensional axes to measure tilt and motion in physical space and provide a wealth of data for movement analysis, digital information processes, or even mechanical safety measures.

A 3D accelerometer might measure voltage variances along three perpendicular axes, by the use of flexing silicon fingers, bubble floats, or other techniques. These horizontal, vertical, and depth (X, Y, and Z) axes allow mathematical analysis of gravity (g) forces, or meters per second per second. One g is equivalent to 9.8 meters/second/second, or 9.8 m/s2. Changes in the piezoelectric voltage of crystals, capacitance between microstructures, piezoresistive effects, and even light all allow the electronic processing of physical accelerations. Some accelerometers require calibration in order to set a resting state to zero, which is actually 1 g in Earth's gravity.

Controlling the tilt and roll of satellites and other dynamic high-technology systems, the accelerometer now also operates in a wide range of common products. The technology is used in tablet computers to orient screens, and also to deactivate hard drives to protect circuitry from falls. It measures performance of automobile braking and suspension systems. The technology also serves in vehicle or personal navigation, as well as in the deployment of automobile airbags.

Accelerometers work in camera image stabilization by controlling shutters to minimize motion blur. They control technology from appliances to missile systems. The devices monitor machine and engine vibrations and the gait of runners and walkers. Applications in smart phones and computer tablets allow for new and creative interactions between virtual and physical realities.

A 3D accelerometer may possess either analog or digital outputs, depending upon the technology it will be embedded into. Another usage factor is the number of spatial dimensions required for analysis; for many applications, two dimensions are sufficient for planar measurements from a fixed mount. Additional aspects include sensitivity and maximum swing, or the range of acceleration forces able to be measured. These depend upon the speeds and impacts involved.

Other computational factors include bandwidth, impedance, and buffering issues, all of which affect accelerometer performance. Cost-effective, lower performance accelerometers are increasingly available and serve consumer markets. Highly accurate devices are found in military, government, and laboratory applications.

Share
EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
Share
https://www.easytechjunkie.com/what-is-a-3d-accelerometer.htm
Copy this link
EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.