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New design of active vibroprotective devices
Engineering Education # 09, September 2012
DOI: 10.7463/0912.0455678
The authors developed a new construction of active vibroprotective devices , which helps to overcome limitations of the active frequency range and maximum oscillation suppression ratio inherent in prior devices. It is shown that these restrictions are caused by a phantom signal of accelerometers’ tilt in the gravity field of the Earth. They propose a method of its compensation - so that with simple electronic circuits the lower boundary of the active range of vibroprotective devices decreases from 2 Hz to 0.2 Hz, and the maximum oscillation suppression ratio increases from 40 dB to 60 dB.
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