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US 4,908,536 AGranted
Vibration suppressing by electrical termination impedance
OwnerAlbert A. Hudimacinventor
Life of this patent
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OwnerAlbert A. Hudimacinventor
Estimating the term…
The electrical termination impedance of a variable reluctance electro-mechanical transducer is changed automatically in response to the frequency of vibration applied to the transducer, to provide the optimum electrical termination impedance which produces the highest effective mechanical impedance at said frequency. The transducer includes magnetic cores interconnected by a spring formed by cutting a relatively thin medial annulus in a relatively thick flat disk. A digital logic circuit uses a signal counter and NAND gates to determine the frequency and close the appropriate fast-acting relay in a parallel array of capacitor-relays. A negative-impedance electrical termination provides a high mechanical impedance over a broad band of frequencies. A shunting circuit eliminates spurious resonances by providing substantially no shunting in the transducer-terminating circuit at resonant frequency, and substantial shunting in the terminating circuit at other frequencies.
The method for suppressing vibration comprising
The method for suppressing vibration comprising
The method for suppressing vibration comprising
The method of suppressing vibrations in a foundation, comprising:
The method of caim 11 wherein the mounting comprises putting identical vibration suppression systems back-to-back on the same side of the foundation in tandem arrangement.
Dependencies are inferred from the claim text.