SU504073A1

SU504073A1 - Coating Thickness Tester

Info

Publication number: SU504073A1
Application number: SU1799838A
Authority: SU
Inventors: Николай Сергеевич Акулов
Original assignee: Отдел Физики Неразрушающего Контроля Ан Бсср
Priority date: 1972-06-20
Filing date: 1972-06-20
Publication date: 1976-02-25

Description

1one

Изобретение относитс к средствам нераэрушаюшего контрол ферромагнитных материалов и изделий и может быть использовано дл контрол толщины различных покрытий на ферромагнитной основе.The invention relates to the non-breaking control of ferromagnetic materials and products and can be used to control the thickness of various coatings on a ferromagnetic basis.

Известен прибор дл измерени толщины покрытий, содержащий рычаг, стрелочный индикатор положени рычага с приводом , установленный на одном из концов рычага регулируемый баланс,, кинематически св занные с другим его концом посто нный магнит и фиксатор положени стрелки индикатора.A known device for measuring coating thickness, comprising a lever, an arrow indicator of a lever position with a drive, an adjustable balance mounted on one of the ends of the lever, a permanent magnet kinematically connected to its other end, and an indicator indicator lock.

Однако точность измерени ИЗЕЮСТНЫМ прибором недостаточна, так как фиксатор положени стрелки индикатор)а выполнен в виде рычага, взаимодействующего с анкерным механизмом привода.However, the accuracy of measurement with the IZEYUST device is insufficient, since the lock position of the arrow indicator is made in the form of a lever that interacts with the anchor drive mechanism.

Целью изобретени вл етс повыше- ,ние точности измерени . Дл этого фикса ор положени стрелки индикатора выполнен в виде жестко соединенного с конном стрелки дугообразш-го матнитом гко- го элемента, установленпо о с Згаданным зазором относительно сто дотюлнитель о-The aim of the invention is to improve the measurement accuracy. For this fixation, the position of the indicator hand is made in the form of an arc-shaped matnit of the loud element rigidly connected to the equestrian arrow, which is installed with a predetermined gap relative to the standpipe

I го посто нного магнита и соедин юихего основной и дополнительный магниты немагнитного штока.I of the permanent magnet and the connection of its primary and secondary magnets of a nonmagnetic rod.

Рекомендуетс также, с целью расширени пределов измер е- )ых толщин покрытий , прибор снабдить установленным на штОке вторым дополнительным магнитом и взаимодействующим с ним магазином эталонных магнитных элементов. На чертеже схематично представленIt is also recommended, in order to expand the limits of the measured coating thickness, to provide the device with a second additional magnet mounted on the spigot and the reference magnetic elements interacting with it. The drawing shows a schematic

предложенный прибор.proposed device.

Он содержит рычаг 1, установленные на концах регулируемый баланс 2 иIt contains lever 1, adjustable balance 2 at the ends, and

посто4.нный магнит 3, основание 4, на ко:тором закреплена ось рычага, соединенный с магнитом 3 немагнитный шток 5, с которым жестко св заны дополнительные посто нные магниты 6 и 7, послед-permanent magnet 3, base 4, on which a lever axis is fixed, connected to magnet 3 by a nonmagnetic rod 5, to which additional permanent magnets 6 and 7 are rigidly connected, the latter

Claims

The scientific research institute interacts with a magazine of 8 magnetic elements, an arrow indicator 9 of a lever with a drive type, at the end of the arrow of which the element is fixed, set by a gap between the JHO magnet 6, the regulator 11 of the indicator housing 9 relative to the base 4, the start-stop button 12 of the drive. The position of the lever is determined by the ratio of the forces of the magnetic interaction between the permanent magnets controlled, sample 13, the reference magnetic elements and element 10. The initial position is set by the balance bar 2, regulator 11 and magazine & when measuring, the base 4 contacts the surface of the coating 14, and pressing the buttons 12 start the indicator drive when the arrow moves, the gap between the element 10 and the magnet 6 decreases, the ratio of forces changes and the magnet 3 detaches from the coating; at the moment of detachment, the magnet 6 contacts with a light drift 10, as a result of which the arrow stops, and the thickness of the coating is recorded on an indicator scale. To change the measurement limits, the magazine 8 is rotated to change the reference1 of the magnetic element. Claim 1. A device for measuring the thickness of coatings containing a lever, a dial gauge with a drive mounted on one of the ends of the lever, adjustable balance, kinematically connected to its other end, a permanent magnet and indicator lock position indicator, differing in that, in order to improve the measurement accuracy, the indicator position of the indicator arrow is made in the form of an arcuate magnet of a soft element rigidly connected to the end of the arrow and mounted with a given gap relative to its an additional permanent magnet and connecting the primary and secondary magnets of the nonmagnetic rod, 2, The device according to Claim 1, which means, in order to expand the pr) ed-; measuring the thickness of the coatings, he cHad wives:; a second additional magnet, guided on the rod; and a second reference magnet that interacts with it.