Surface roughness online detection device and method for high-temperature coating superconductive baseband

A coating and baseband technology, applied in the field of high-temperature coating superconducting baseband detection, can solve the problem of unreported surface roughness of long strips

Active Publication Date: 2014-05-21
深创超导(深圳)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The detection of the surface roughness of the metal base tape is the key to the preparation of YBCO coated superc...

Method used

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  • Surface roughness online detection device and method for high-temperature coating superconductive baseband
  • Surface roughness online detection device and method for high-temperature coating superconductive baseband
  • Surface roughness online detection device and method for high-temperature coating superconductive baseband

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Embodiment 1

[0017] Put the probe into the probe holder, place the fully recrystallized and annealed baseband into the atomic force microscope equipment by the retractable belt system, open the operating software, and select the topography module to operate in tapping mode, so that the needle tip just touches the surface of the baseband , it can be considered that the atoms are in contact, adjust the laser and measure the resonance frequency, so that the laser signal is converted into an electrical signal and the control system (9) indicates the position of the light spot through the voltage signal converted from the light difference, and then the needle is inserted. When the needle tip is close to the sample, When the force between the needle tip and the sample reaches the set value, stop the needle insertion and start scanning. The scanning range is 1.2 μm. After the scanning is finished, a picture of the surface structure of the sample is obtained, and the picture is saved.

[0018] The...

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PUM

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Abstract

The invention discloses a surface roughness online detection device and method for a high-temperature coating superconductive baseband and belongs to the technical field of detection of high-temperature coating superconductive basebands. The surface roughness online detection device for the high-temperature coating superconductive baseband comprises a band winding and unwinding system, an atomic force microscope, a power system and an IPC (Industrial Personal Computer) system. A surface roughness online detection method comprises that a baseband is placed on a sample stage of the atomic force microscope through the band winding and unwinding system, a probe tip acts on the surface of the baseband to be detected, laser beams emitted by a laser is focused on a back surface of a micro-cantilever through a reflector and is reflected on a light spot position detector, during sample detection, due to interaction forces between atoms on a baseband surface and atoms at the tip of the probe of the micro-cantilever, the micro-cantilever bends and fluctuates along with the surface topography of the baseband, reflected beams also offsets along with the surface topography of the baseband, then a control system indicates a position of a light spot through a light-difference-converted voltage signal, and a baseband RMS (root-mean-square) roughness Rq and an arithmetic mean roughness Ra are computed through a computer. The simple-structure atomic force online checking device and detection method can meet requirements of surface inspection of samples.

Description

technical field [0001] The invention belongs to the technical field of high-temperature coated superconducting baseband detection, and relates to an on-line detection device and a detection method for the surface roughness of the baseband. Background technique [0002] YBCO-coated high-temperature superconducting tapes are usually grown on biaxially textured metal substrates with isolation layers. The main role of the baseband is to epitaxially grow the transition layer and the superconducting layer, and at the same time be able to withstand certain stress and strain. In order to meet the requirements of high-performance superconducting strips, the following performance indicators must be met: high cubic texture, through epitaxial growth of YBCO film, to form small-angle grain boundaries between YBCO grains, and overcome the weak connection caused by large-angle grain boundaries Behavior; excellent surface roughness and good mechanical strength to ensure sufficient support ...

Claims

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Application Information

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IPC IPC(8): G01B11/30
Inventor 索红莉王毅梁雅儒田辉孟易辰彭发学王盼
Owner 深创超导(深圳)科技有限公司
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