Device and method for evaluation of vibrations
First Claim
1. A device for the evaluation of vibrations, comprising:
- a vibration sensor having an output configured to emit a vibration signal;
an evaluating device having an input connected to the output of the vibration sensor, the output configured for receiving the vibration signal, the evaluating device including;
a filter arrangement, having an input and an output, configured to provide, by a frequency-dependent evaluation of the vibration signal inputted from the output of the vibration sensor into the input of the filter arrangement, a characteristic signal with the dimension of length/timeβ
, through the output of the filter arrangement, anda squaring device, having an input and an output, configured to receive the characteristic signal from the output of the filter arrangement and determine the square of the characteristic signal from the vibration signal to provide a square signal at the output of the squaring device,wherein, for a predefined value of a dimensional exponent β
, 1.3<
β
<
1.7.
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Accused Products
Abstract
A device for the evaluation of vibrations (10) comprises an evaluating device (12), which comprises an input for introducing a vibration signal (SG) and is designed to determine a characteristic signal (BK) with the dimension of length/timeβ and/or the square (SE) of the characteristic signal (BK) from the vibration signal (SG) by means of a frequency-dependent evaluation of the vibration signal (SG). For a predefined value of a dimensional exponent β, 1.3<β<1.7, a vibration sensor (11) of the device (10) outputs the vibration signal (SG). An RMS value (BEF) of the characteristic signal (BK) or the square (SE) of the characteristic signal (BK) essentially corresponds to the damaging effect of the vibrations on a structure or a machine. The square (SE) can be converted into a service life (T) according to the equation T=KB/SE and displayed.
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Citations
14 Claims
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1. A device for the evaluation of vibrations, comprising:
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a vibration sensor having an output configured to emit a vibration signal; an evaluating device having an input connected to the output of the vibration sensor, the output configured for receiving the vibration signal, the evaluating device including; a filter arrangement, having an input and an output, configured to provide, by a frequency-dependent evaluation of the vibration signal inputted from the output of the vibration sensor into the input of the filter arrangement, a characteristic signal with the dimension of length/timeβ
, through the output of the filter arrangement, anda squaring device, having an input and an output, configured to receive the characteristic signal from the output of the filter arrangement and determine the square of the characteristic signal from the vibration signal to provide a square signal at the output of the squaring device, wherein, for a predefined value of a dimensional exponent β
, 1.3<
β
<
1.7. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for the evaluation of vibrations, comprising the steps of:
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providing a vibration sensor, the vibration sensor configured to emit a vibration signal via an output upon sensing of vibrations; providing a filter arrangement, having an input connected to the output of the vibration sensor and an output, the filter arrangement receiving the vibration signal via the input of the filter arrangement, filtering the vibration signal and sending a characteristic signal through the output of the filter arrangement; providing a squaring device, having an input and an output, the squaring device configured to receive the characteristic signal from the filter arrangement via the input of the squaring device and sending a square signal through the output of the squaring device; operating the filter arrangement to determine the characteristic signal, which has the dimension of length/timeβ
with a dimensional exponent β
from a range of 1.3<
β
<
1.7, andoperating the squaring device to determine a square of the characteristic signal received from the output of the filter arrangement by a frequency-dependent evaluation of the vibration signal, which is outputted by the vibration sensor. - View Dependent Claims (13, 14)
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Specification