Contactless vibration measurement using linear CCD sensor

Lénárt, József

doi:10.1109/carpathiancc.2012.6228681

Cited by 4 publications

(2 citation statements)

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“…However, the requirements for the measurement accuracy are not justified there; the error of image sampling is not considered in this work, but is considered to be a general error of the system. A method for measuring the vibrational displacement of the investigated material point along the z-coordinate, based on measuring a radius increment of the round mark image, is substantiated in [11]- [14]. This paper also proves the linearity of the dependence of the measuring signal (the vibrational radius increment of the round mark image) on the measured value (amplitude of the vibrational displacement of the material point on the surface of the control object along the z-coordinate).…”

Section: Introductionmentioning

confidence: 62%

Modelling of Measurement Error for Vibrational Displacement Based on the Blurring Analysis of a Round Mark Image

Grigoriev

Danilova

Trusov

et al. 2018

Applied Computer Systems

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With the aim to compare methods for counting the number of lines of a raster matrix, intersecting a round mark image, and a number of pixels belonging to this image for measuring its radius, a numerical simulation is carried out in the present article. It is proved that the application of the method for counting the number of pixels belonging to the image of the round mark allows obtaining more than 30 times gain in the accuracy of this image radius measurement using the same equipment. The formulas proposed in the article are used for software implementation of non-contact vibration measurement systems.

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Section: Introductionmentioning

confidence: 62%

Modelling of Measurement Error for Vibrational Displacement Based on the Blurring Analysis of a Round Mark Image

Grigoriev

Danilova

Trusov

et al. 2018

Applied Computer Systems

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“…The methods for analysing traces of vibrational blurring of images include, in particular, the use of groups of parallel strokes [12].…”

Section: A Review Of Existing Approachesmentioning

confidence: 99%

Determination of Vibrational Displacement Measurement Error Based on the Blurring Analysis of a Round Mark Image

Grigor’ev

Лысенко

Кочегаров

et al. 2018

Applied Computer Systems

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The relevance and nature of a new technology for measurement of vibrational displacement of a material point through normal toward the object plane are stated in the article. This technology provides registration and processing of images of a round mark or a matrix of round marks, which are applied to the surface of a control object. A measuring signal here is the module of radius increment of the round mark image at vibrational blurring of this image. The method for calculation of the given error of measurements, as a function of a number of pixels of the round mark image, has been developed and proven in the present research. The results of pilot studies are given. Linearity of transformation of the measured size into a measuring signal has been proven. The conditions of a technical compromise between the field of view area of a recording device during distribution measurement of vibrational displacements along the surface of a control object, and the accuracy of this measurement are determined. The results are illustrated with numerical examples of calculations of the given error of measurements in the set field of view and the one at the given maximum set error of measurements.

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Contactless measurement technique for the amplitude of vibrational movement of the test material point

Grigoriev

Yurkov

Кочегаров

2016

2016 IEEE East-West Design &Amp; Test Symposium (EWDTS)

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Contactless vibration measurement using linear CCD sensor

Cited by 4 publications

References 0 publications

Modelling of Measurement Error for Vibrational Displacement Based on the Blurring Analysis of a Round Mark Image

Modelling of Measurement Error for Vibrational Displacement Based on the Blurring Analysis of a Round Mark Image

Determination of Vibrational Displacement Measurement Error Based on the Blurring Analysis of a Round Mark Image

Contactless measurement technique for the amplitude of vibrational movement of the test material point

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