We have a good assortment of accelerometers, with maximum ranges stretching from ☑g to ☒50g. You want to select a sensing range that will best fit your project, if your project will only be subjected to accelerations between +2g and -2g, a ☒50g-ranged accelerometer won't give you much, if any, precision. In most cases, a smaller full-scale range means a more sensitive output so you can get a more precise reading out of an accelerometer with a low full-scale range. ![]() Range - The upper and lower limits of what the accelerometer can measure is also known as its range.Now that you know what they do, let's consider what characteristics you should be looking for when selecting your accelerometer: This feature is implemented in several hard drives: if a drop is sensed, the hard drive is quickly switched off to protect against data loss. Finally, an accelerometer can also be used to sense if a device is in a state of free fall. For instance, an accelerometer in Nintendo's WiiMote can be used to sense emulated forehands and backhands of a tennis racket, or rolls of a bowling ball. An accelerometer can also be used to sense motion. For example, Apple's iPhone has an accelerometer, which lets it know whether it's being held in portrait or landscape mode. Because they are affected by the acceleration of gravity, an accelerometer can tell you how it's oriented with respect to the Earth's surface. One of the more widely used applications for accelerometers is tilt-sensing. You'll see acceleration displayed either in units of meters per second squared (m/s 2), or G-force (g), which is about 9.8m/s 2 (the exact value depends on your elevation and the mass of the planet you're on).Īccelerometers are used to sense both static (e.g. You know.how fast something is speeding up or slowing down. What's an accelerometer measure? Well, acceleration. ![]() The goal of this buying guide is to get you speaking the same language as these sensors' datasheets and to help you select the one that is best-suited for your needs. Accelerometers and gyros are becoming increasingly popular in consumer electronics, so maybe it's time you added them to your project! Scrolling through SparkFun's sensors category reveals a huge list of these sensors that might be perfect for your next project, if only you knew what they did, and which one best fit your project.
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