منابع مشابه
Low-Frequency Vibration Actuator Using a DC Motor
In our previous study, we found that a normal DC motor can be used for vibro-tactile and pseudo-force presentation. In the present study, we developed a new vibration actuator using a DC motor that can generate much stronger vibrations than a normal DC motor and produce very low frequency of vibrations. We proposed that the stator of the motor could be used as both the vibration mass and fixed ...
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Vibration energy harvesting is an attractive technique for potential powering of wireless sensors and low power devices. While the technique can be employed to harvest energy from vibrations and vibrating structures, a general requirement independent of the energy transfer mechanism is that the vibration energy harvesting device operate in resonance at the excitation frequency. Most energy harv...
متن کاملinduction motor broken bar diagnosis using vibration spectrum in the presence of obtrusive frequency components
different methods for detecting broken bars in induction motors can be found in literature. many of these methods are based on evaluating special frequency magnitudes in machine signals spectrums. current, power, flux, etc are among these signals. frequencies related to broken rotor fault depend on slip. in industrial environment due to some phenomena - such as load oscillation, other faults an...
متن کاملVibration-induced motor responses of infants with and without myelomeningocele.
BACKGROUND The severity of myelomeningocele (MMC) stems both from a loss of neurons due to neural tube defect and a loss of function in viable neurons due to reduced movement experience during the first year after birth. In young infants with MMC, the challenge is to reinforce excitability and voluntary control of all available neurons. Muscle vibration paired with voluntary movement may increa...
متن کاملWhole-body vibration therapy in children with severe motor disabilities.
OBJECTIVE To study the effect of whole-body vibration therapy on bone mass, bone turnover and body composition in severely disabled children. METHODS Nineteen non-ambulatory children aged 5.1-16.3 years (6 males, 13 females) with severe motor disabilities participated in an intervention programme with standing exercise on a self-controlled dynamic platform, which included whole-body vibration...
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ژورنال
عنوان ژورنال: School Science and Mathematics
سال: 1916
ISSN: 0036-6803
DOI: 10.1111/j.1949-8594.1916.tb01807.x