SU157503A1 - - Google Patents

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Publication number
SU157503A1
SU157503A1 SU809399A SU809399A SU157503A1 SU 157503 A1 SU157503 A1 SU 157503A1 SU 809399 A SU809399 A SU 809399A SU 809399 A SU809399 A SU 809399A SU 157503 A1 SU157503 A1 SU 157503A1
Authority
SU
USSR - Soviet Union
Prior art keywords
sensor
diaphragm
product
monitored
wall thickness
Prior art date
Application number
SU809399A
Other languages
Russian (ru)
Publication of SU157503A1 publication Critical patent/SU157503A1/ru

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Description

Известны устройства дл  контрол  толщины стенок изделий из немагнитных материалов, содерлсащие датчик, устанавливаемый с одной стороны контролируемой , .и нодвижный элемент, расиолагаемый ио другую ее сторону. Погрешности установки иодвижного элемента датчика в известных устройствах снижают точность и надежность контрол .Devices are known for monitoring the wall thickness of articles made of non-magnetic materials, comprising a sensor mounted on one side of the monitored, and a fixed element on the other side. The installation errors of the sensor element in known devices reduce the accuracy and reliability of control.

Дл  устранени  этого недостатка в предложенном устройстве нодвижный элемент датчика выполнен в виде гибко токопровод щей диафрагмы, нрижимаемой к контрол 1руемой поверхности сжатым воздухом .To eliminate this drawback in the proposed device, the moving element of the sensor is made in the form of a flexible conductive diaphragm applied to the control surface by compressed air.

На фиг. 1 изображено диафрагменное пневматическое устройство дл  контрол  толщины стеиок труб из немагнитны.х материалов; на фиг. 2 - установка дл  контрол  толщины стенок труб с помощью диафрагменного пневматического устройства.FIG. 1 depicts a pneumatic diaphragm device for controlling the thickness of non-magnetic pipe steayok; in fig. 2 — Installation for controlling the wall thickness of pipes using a pneumatic diaphragm device.

При контроле датчик / располагаетс  с внещней стороны контролируемого издели  2. Внутри издели.ч 2 напротив датчика 1 устанавливаетс  диафрагменное устройство, в котором диафрагма 3 прижата кольцом 4 к фланцу 5 с помощью винтов 6. По шлангу 7, соедин емому с полостью диафрагмы 3 через штуцер 8, подаетс  воздух, что обеспечивает надежный контакт токопровод щей диафрагмы с контролируемым изделием на достаточно большом участке. При этом при питании датчика токами высокой частоты в диафрагме возникают вихревые токи, измеи ющие основной магнитный поток возбуждени . В измерительной катушке датчика наводитс  э.д.с., по величине которойDuring the inspection, the sensor / is located on the outer side of the monitored product 2. Inside the product.h 2, opposite the sensor 1, a diaphragm device is installed in which the diaphragm 3 is pressed by the ring 4 to the flange 5 with screws 6. Through the hose 7 connected to the cavity of the diaphragm 3 The fitting 8, is supplied with air, which ensures reliable contact of the conductive diaphragm with the product under test at a sufficiently large area. In this case, when the sensor is powered by high-frequency currents, eddy currents appear in the diaphragm, which change the main magnetic excitation flux. In the measuring coil of the sensor is induced emf, the magnitude of which

SU809399A SU157503A1 (en)

Publications (1)

Publication Number Publication Date
SU157503A1 true SU157503A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828248A (en) * 1971-01-14 1974-08-06 G Wennerberg Apparatus for measuring a predetermined characteristic of moving sheet material which accommodates both tilting and changes in thickness and vertical location of the material
US4946587A (en) * 1988-12-02 1990-08-07 General Electric Company Automated gauging apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828248A (en) * 1971-01-14 1974-08-06 G Wennerberg Apparatus for measuring a predetermined characteristic of moving sheet material which accommodates both tilting and changes in thickness and vertical location of the material
US4946587A (en) * 1988-12-02 1990-08-07 General Electric Company Automated gauging apparatus

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