scholarly journals Experimental Studies of Conductive Paths of Printed Circuit Boards by Using Subminiature Eddy Current Transducers

2021 ◽  
Vol 285 ◽  
pp. 07037
Author(s):  
Vladimir Malikov ◽  
Maxim Ananyev ◽  
Alexey Ishkov ◽  
Leonid Nikonov
Keyword(s):  
Eddy Current ◽  
Printed Circuit Boards ◽  
Experimental Studies ◽  
Measuring System ◽  
Circuit Boards ◽  
Printed Circuit ◽  
Hardware Complex ◽  
Current Transducer ◽  
Software And Hardware ◽  
Eddy Current Transducer

This paper describes the development and experimental study of a software and hardware complex designed for studying the conductive tracks of printed circuit boards. In the course of this development, a subminiature eddy-current transducer and a measuring system capable of performing measurements using the newly developed transducer were created. The paper contains descriptions of the main parameters of the developed measuring system, and also presents the results of experiments conducted with various printed circuit boards, both with defect-free and those with artificial model defects. These experiments made it possible to confirm the possibility of using the developed measuring system and eddy-current transducer for controlling the conductive tracks on printed circuit boards and determining their quality.

scholarly journals Experimental Studies of an Eddy Current Transducer with Spatially Periodic Fields

2018 ◽  
pp. 45-50
Author(s):  
B. Gorkunov ◽  
S. Lvov ◽  
Tamer Shaiban ◽  
Y. Borysenko
Keyword(s):  
Eddy Current ◽  
Experimental Studies ◽  
Fixed Frequency ◽  
Current Transducer ◽  
Current Conductor ◽  
Translation Symmetry ◽  
Spatially Periodic ◽  
Transducer Output ◽  
Angular Coordinates ◽  
Eddy Current Transducer

The purpose of this study is to perform a comparative analysis of the experimentally obtained and calculated values of the measuring windings total EMF amplitudes of the eddy current transducer with spatially periodic fields when magnetic and nonmagnetic cylindrical product are placed in it. To realize this goal in the work, a transducer with translational symmetry of excitation magnetic field has been developed. Translation symmetry typical example is the field of a long current conductor. The paper considers quasi-static electromagnetic field with the wavelength that exceeds characteristic transverse dimensions of conductor and cylinder. As the study result it is seen a satisfactory coincidence of the calculated and experimentally obtained values of the EMF of the transducer output signal in the cases of the product absence and with variety of products. As for example for measuring windings with angular coordinates φ = 30° and 60° an error of voltage values difference is less than 10%. The study shows that the advantage of such transducers while operating on one fixed frequency is capability to perform the multi-parameter testing on account of processing of certain amount of some spatial harmonics of excitation field.

scholarly journals Novel eddy current testing sensor for the inspection of printed circuit boards

2001 ◽  
Vol 37 (4) ◽  
pp. 2010-2012 ◽  
Author(s):  
D. Kacprzak ◽  
T. Taniguchi ◽  
K. Nakamura ◽  
S. Yamada ◽  
M. Iwahara
Keyword(s):  
Eddy Current ◽  
Printed Circuit Boards ◽  
Eddy Current Testing ◽  
Circuit Boards ◽  
Current Testing ◽  
Printed Circuit

scholarly journals Introduction of a Base-Model for Eddy Current Testing of Printed Circuit Boards

2008 ◽  
Vol 44 (11) ◽  
pp. 4015-4017 ◽  
Author(s):  
H. Bayani ◽  
M. Nishino ◽  
S. Yamada ◽  
M. Iwahara
Keyword(s):  
Eddy Current ◽  
Printed Circuit Boards ◽  
Eddy Current Testing ◽  
Circuit Boards ◽  
Current Testing ◽  
Printed Circuit

scholarly journals TECHNOLOGY FOR CREATING THE TOPOLOGY OF PRINTED CIRCUIT BOARDS USING POLYMER 3D MASKS

2021 ◽  
pp. 120-131
Author(s):  
Igor Nevliudov ◽  
Evgeny Razumov-Fryzyuk ◽  
Dmytro Nikitin ◽  
Danila Bliznyuk ◽  
Roman Strelets
Keyword(s):  
3D Printing ◽  
Regression Models ◽  
Printed Circuit Boards ◽  
Printed Circuit Board ◽  
Experimental Studies ◽  
Three Dimensional ◽  
Circuit Board ◽  
Work Piece ◽  
Circuit Boards ◽  
Printed Circuit

The subject of research is the influence of factors of exposure of two-dimensional images on the topology of conductors in the manufacture of printed circuit boards by the method of three-dimensional polymer photomasks. The purpose of the work is ensuring the accuracy and preservation of the geometric dimensions of the conductors of printed circuit boards during LCD exposure of masks on the work piece. To achieve this goal, it is necessary to solve the following tasks: to analyze photolithography technology and types of polymer 3D printing; to develop a technological process for exposing photopolymer masks to a printed circuit board blank using 3D printing technologies; to conduct experimental studies to determine the optimal exposure parameters; on the basis of the empirical results obtained, to calculate the correlation coefficients of the factors for recall; to construct a linear regression model of the dependence of the deviations of the geometric dimensions of the printed conductors on the parameters of solutions for etching and exposure conditions. Results: The constructed regression models will become the basis for creating a software database that optimizes the initial images of the topology of printed conductors in the automated production of printed circuit boards. This will simplify the process of developing the topology of printed circuit boards, taking into account the real influence of the parameters of the technological operations of etching and exposure on the thickness of the tracks of the conductors of the printed circuit boards, which will reduce the proportion of rejects in the manufacture of single- and double-sided printed circuit boards. Conclusions: an LCD exposure technology and a method for studying the effects of exposure factors on the quality of printed circuit board topology are proposed, which provide sufficient empirical data to create regression models for calculating the influence of technological factors on the final dimensions of conductive paths in the production of printed circuit boards. Further development of the proposed technology will make it possible to manufacture rigid and flexible printed circuit boards completely, with conductive paths, a dielectric base, electronic elements that can be used in various devices.

scholarly journals Research of thickness by using subminiature eddy-current transducers

2018 ◽  
Vol 226 ◽  
pp. 04017
Author(s):  
Sergey F. Dmitriev ◽  
Vladimir N. Malikov ◽  
Anatoly M. Sagalakov
Keyword(s):  
Eddy Current ◽  
Measurement Techniques ◽  
Current Method ◽  
Dielectric Coating ◽  
Measuring System ◽  
Eddy Current Method ◽  
Dielectric Coatings ◽  
Current Transducer ◽  
Transformer Type ◽  
Eddy Current Transducer

On the basis of an eddy-current transducer of a transformer type, a measuring system is made, which makes it possible to estimate the possibility of using the eddy current method for measuring the thickness of conductive and dielectric coatings placed on a conductive base. The purpose of this work was to evaluate the possibility of using only an amplitude eddycurrent method for determining the thickness of a conductive or dielectric coating on a conductive base and estimating the error of such measurements. The design of the measuring system and measurement techniques is described. The article presents data demonstrating the dependence of the amplitude part of the signal on objects of different thicknesses; limiting object dimensions at which these measurements are expedient are experimentally established.

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