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Instrument for measuring thickness of non-ferromagnetic material and surface coating of ironwork

A non-ferromagnetic, surface coating technology used in electrical/magnetic thickness measurement, electromagnetic measurement devices, instruments, etc.

Inactive Publication Date: 2009-04-01
王洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide an instrument that does not need to be contacted by the clamp feet and uses an induction method to measure the thickness, so as to solve the above-mentioned problem of measuring the thickness of the object

Method used

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  • Instrument for measuring thickness of non-ferromagnetic material and surface coating of ironwork

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Experimental program
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Embodiment Construction

[0011] Embodiment comprises three parts of probe, reference iron plate, measuring circuit, and the structure of probe is referring to accompanying drawing, and its structure is: a strain sensor 2 is installed on the pedestal 3 that metal such as copper, aluminum etc. of non-ferromagnetic material makes, The direction of the strain sensor 2 is parallel to the bottom surface of the base 3. One end of the strain sensor 2 is fixed on the foot of the base 3, and the other end is suspended in the air. A magnet 1 is installed above. The poles of the magnet 1 face up and down, and the magnet 1 is perpendicular to the strain gauge. The sensor 2 is also perpendicular to the bottom surface of the base 3 .

[0012] A bubble level 7 is also installed on the upper surface of the base 3, and the reference plane of the level is parallel to the bottom surface of the base for adjusting the level during measurement.

[0013] The strain sensor 2 is electrically connected with the measuring circui...

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Abstract

The invention discloses an instrument for measuring the thickness of nonferrous magnetic materials and the thickness of a coating layer on the surface of ironworks, which comprises a probe, a measuring circuit and a reference iron plate, wherein, the probe is a strain transducer that is arranged on a base made of the nonferrous magnetic materials, a magnet is arranged on the strain transducer, the reference iron plate is arranged under feet of the base and used for pressing a measured substance between an iron plate and a bottom foot surface of the base during measurement, and the strain transducer is electrically connected with the measuring circuit. The thickness of the substance affects the attraction force between the magnet and the reference iron plate, and the thickness of the substance can be reflected through the strain transducer and the measuring circuit. The measuring instrument can be further used for measuring the thickness of the coating layer on the surface of the ironworks. As the clamping foot contact measurement such as with a caliber rule is not needed, the measuring instrument can be placed at any position, is not limited by substance area and shape, and can consequently realize the measurement of wall thickness of substances with large area and complex shapes.

Description

technical field [0001] The invention relates to an electronic instrument, especially an instrument for measuring thickness. Background technique [0002] At present, the thickness of large-area objects such as plates is generally measured at the edge with a caliper, but the center thickness of the object cannot be measured because the caliper cannot reach it, and it is impossible to identify whether the plate thickness is uniform. In addition, due to the shape limitation of some finished products, such as deep-drawn containers, the wall thickness and bottom thickness cannot be measured with calipers. Contents of the invention [0003] The object of the present invention is to provide an instrument for measuring thickness by induction method without contact of clamp feet, so as to solve the above-mentioned problem of object thickness measurement. [0004] The solution of the present invention is: an instrument for measuring the thickness of non-ferromagnetic materials and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/06G01C9/24
Inventor 王洋
Owner 王洋
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