Results 321 to 330 of about 229,107 (335)
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The Principles of Accelerometers
1993In this chapter we consider acceleration measurement and examine the dynamic behavior of a common accelerometer, the mass-spring second order model, describing its responses to an impulse and to a sustained periodic driving force. We will describe open- and closed-loop (servoed) instruments and the types of servos which they can use.
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2014
One of the coolest features of the iPhone, iPad, and iPod touch is the built-in accelerometer—the tiny device that lets iOS know how the device is being held and if it’s being moved. iOS uses the accelerometer to handle autorotation, and many games use it as a control mechanism.
Jack Nutting +4 more
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One of the coolest features of the iPhone, iPad, and iPod touch is the built-in accelerometer—the tiny device that lets iOS know how the device is being held and if it’s being moved. iOS uses the accelerometer to handle autorotation, and many games use it as a control mechanism.
Jack Nutting +4 more
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Capacitance type accelerometer
The Journal of the Acoustical Society of America, 1992A capacitance type accelerometer, having a fist silicon plate formed a movable electrode which is moved according to acceleration, two second silicon plates which are disposed on both sides of the first silicon plate with a certain separation distance, and thermal oxide films which are respectively disposed between the first silicon plate except the ...
Masahiro Matsumoto +3 more
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A Novel Recording Accelerometer
Review of Scientific Instruments, 1949The novel features of a small recording accelerometer of slow chart speed are described. Principally, these are its compactness—the recorder, less power supply, fits into a panel type aircraft instrument case—and the use of spark recording to obtain a visible record on a paper chart.
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Estimating orientation with gyroscopes and accelerometers
Technology and Health Care, 1999Many systems for recording human movement need some reference from beacons near the subject, such as video cameras. Our goal is to measure human kinematics with sensors that are placed on the segments of interest. This way, experiments in which human movement is recorded are not restricted to a lab.
Henk Luinge +2 more
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Vibration accelerometer-multisensor
The Journal of the Acoustical Society of America, 1988A vibrating multisensor, each using two accelerometers which are vibrated along straight lines perpendicular to their sensing axes. In one embodiment, the sensing axes are co-linear, and in another embodiment the sensing axes are perpendicular. The accelerometers preferably use a proof mass and flexure suspension made on a silicon wafer sandwiched ...
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1993
In this chapter we will investigate the design of vibratory accelerometers. Their underlying physical principle is that the transverse resonant frequency of a string or bar depends on the tensile stress, and the stress can be made a function of acceleration by fixing a proof mass to the string or bar.
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In this chapter we will investigate the design of vibratory accelerometers. Their underlying physical principle is that the transverse resonant frequency of a string or bar depends on the tensile stress, and the stress can be made a function of acceleration by fixing a proof mass to the string or bar.
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IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1987
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