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An accelerometer measures proper acceleration, which is the acceleration it experiences relative to freefall and is the acceleration felt by people and objects. [2] Put another way, at any point in spacetime the equivalence principle guarantees the existence of a local inertial frame, and an accelerometer measures the acceleration relative to that frame. [4]
One attempt involved using the resistance strain gage as a device to build an accelerometer. Incidentally, it was Hans J. Meier who, through his work at MIT, is given credit as the first to construct a commercial strain gage accelerometer (circa 1938). [1] However, the strain gage accelerometers were fragile and could only produce low resonant ...
An accelerometer was announced that used infrared light to measure the change in distance between two micromirrors in a Fabry–Perot cavity. The proof mass is a single silicon crystal with a mass of 10–20 mg, suspended from the first mirror using flexible 1.5 μm-thick silicon nitride (Si 3 N 4) beams. The suspension allows the proof mass to ...
In computing, a motion controller is a type of input device that uses accelerometers, gyroscopes, cameras, or other sensors to track motion. Motion controllers see use as game controllers , for virtual reality and other simulation purposes, and as pointing devices for smart TVs and Personal computers .
Pages in category "Accelerometers" The following 10 pages are in this category, out of 10 total. This list may not reflect recent changes. ...
People looking to save money for a big trip or financial investment may want to make plans around an "extra" paycheck in their pocket.. Employees who get paid on a biweekly basis (every other week ...
(The Center Square) – A $60 million deficit facing the Memphis Area Transit Authority, a "friendly" restaurant deal in Lebanon and another fumble for Nashville's Nissan Stadium project topped ...
PIGA accelerometers mounted in the AIRS (Advanced Inertial Reference Sphere) are part of the most accurate inertial navigation (INS) developed for the Peacekeeper missile. The INS drift rates are less than 1.5 x 10 −5 degrees per hour of operation, about 8.5 m per hour with the overall accuracy of the missile affected more by defects in the ...