accelerometer


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ac·cel·er·om·e·ter

(ak-sel-er-om'ĕ-ter),
An instrument for measuring the rate of change of velocity per unit of time.

accelerometer

Any instrument used to measure acceleration.

Typically, accelerometers contain a small mass, connected to a stiff spring, with some electrical means of measuring the spring deflection when the mass is accelerated; the type of accelerometer used in gait analysis is usually very small and measures acceleration in one direction, but can be clustered for two- and three-dimensional measurements.

accelerometer

(ak″sel-ĕ-rom′ĕ-tĕr) [ acceler(ation) + -meter]
An instrument that detects a change in the velocity of the object to which it is attached. The device may be designed to record the changes and indicate the direction(s) of the acceleration.
References in periodicals archive ?
Two types of the vibration sensor that has a triple axis accelerometer sensor are MMA7361 and ADXL335.
The single-axis model AC146 piezoelectric sheer-mode accelerometer has a [+ or -]50g range with a -3-dB frequency range of 1 Hz to 10 kHz.
Figure 2 shows the dimensions of the used capacitive accelerometer and Table 1 shows the properties of Silicon.
2013), this is to our knowledge the first time that the data derived from a GPS-embedded tri-axial accelerometer were directly compared with a gold standard (i.
This factory calibration will change slightly as a result of the thermal stresses during soldering of the accelerometer to the circuit board.
The accelerometers can be removed and replaced, leaving the mount in place.
This simplicity provides the utility of precision piezoelectric accelerometers while acting as a high-fidelity tool for both the test and industrial markets.
The proposed method for human activity recognition based on tri-axis accelerometer comprises the following five steps:
To collect the data, the researchers - as with any would-be attacker - needed to sample the accelerometer data.
The company was able to incorporate these accelerometer uses in the iPad series.
The thigh-mounted accelerometer was used in both experiments to enhance accuracy of activity and posture recognition so as to validate classifications derived by an algorithm run only on the single accelerometer data.