![]() Pulling zero g would be floating (like in interplanetary space). Imagine it this way - no outside forces acting on you to confuse things. In this scenario the one g and one negative g cancel each other out. If you’re reading this article on your smartphone or tablet, turn the device at this moment and witness the accelerometer in action in your very hands.But you’re not “floating” unless you’re only pulling one negative g in a one g environment like, well, the world around you. Though not recognized as being part of so many tools and applications, accelerometers are important to our everyday lives. Airbags – Accelerometers detects rapid deceleration of a vehicle, and severity of a collision, to trigger an airbag inflation.Digital cameras – provides orientation sensing to keep image upright, and for image stabilization.Drones – these unmanned aircraft use accelerometers for flight stabilization.Medical devices – a device called PocketCPR has a built-in iMems accelerometer to measure the rate and depth of chest compressions administered by rescuers.It also allows apps like a compass to function properly on your smartphone. Smartphones & tablet computers – Enables your phone to recognize how you are holding it and rotates the images upright.Segway – the combination of both an accelerometer and a gyroscope allows the segway to remain upright and balanced while maneuvering.Rotating machinery – used to detect and monitor vibrations in equipment. ![]() ![]() Aircraft – accelerometers, like Duotech’s Digital G-Meter, measure g-forces during flight to monitor stresses to both pilot and airframe.Wii remote control – recognizes the movement of the joystick to control the Wii video game.9 Everyday Applications of Accelerometers, or G-meters Monitoring these extreme forces during flight using a g-meter in conjunction with a data recorder enables aircraft technicians to understand the stresses both the pilot and the airframe endures for the duration of a flight mission. These g-meters monitor the acceleration experienced during training and combat maneuvers. To an aircraft, monitoring g-forces using an accelerometer is important. ![]() Through the use of special flight suits and training to limit the blood running to the lower extremities, fighter pilots can sustain 9 g and avoid passing out. Excessive negative g-forces can cause “redout”, a situation where the body is falling downward faster than the natural rate of free fall. Higher g-forces on the body can lead to tunnel vision, blacking out, and if sustained, even can cause death. A typical person can sustain approximately 5 g. Monitoring the number of g-forces experienced by the pilot is important. Just standing on earth at sea level you are at the standard of 1 g. A driver of a Formula One car or a Stock Car can expect close to 6 g in tight banking turns. Stand up on the Gravitron ride at the carnival and you’ll feel close to 3 g. When riding a roller coaster with lots of turns you can experience 3-6 g. You don’t have to be an airplane pilot or passenger to experience g-forces. One ‘g’ is equal to the force of gravity at the Earth’s surface, or an acceleration of 9.8 meters per second squared. Depending on the situation, g-forces can apply extreme pressure to the body or can force a feeling of weightlessness, often described in terms of negative g-forces. Have you ever felt g-forces? If you’ve been in an airplane and the pilot turns, climbs, accelerates, or decelerates the aircraft then you have.
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