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Corrosive environment monitoring device

A technology for environmental monitoring and corrosion detection, applied in measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve problems such as difficulties

Active Publication Date: 2018-12-21
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, there is a problem that it is difficult to analyze the metal plate on the spot in the installation environment of electrical and electronic devices and to quantitatively diagnose the corrosion of the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] As mentioned above, since the structure and problems of the conventional corrosive environment monitoring apparatus were clarified, the structure of the corrosive environment monitoring apparatus of this invention is demonstrated below. exist Figure 1 to Figure 7 The configuration example and function of the corrosion environment monitoring device according to Embodiment 1 of the present invention are shown in . figure 1 It is a perspective view showing the overall configuration of the corrosion environment monitoring device according to Embodiment 1 of the present invention, figure 2 yes figure 1 top view of image 3 yes figure 2 A-A sectional view of the, Figure 4 yes figure 2 The B-B cross-sectional view. in addition Figure 5 , Image 6 , Figure 7 Respectively show the top view showing the corrosion situation of the metal thin film after the exposure of the corrosion environment monitoring device of Example 1, Figure 5 The A-A cross-sectional view o...

Embodiment 2

[0077] exist Figures 16-17 A configuration example of a corrosion environment monitoring device according to Embodiment 2 of the present invention is shown in FIG. Figure 16 is a stereogram, Figure 17 is a top view.

[0078] Will Figure 16 The corrosion environment monitoring device 1 related to the embodiment 2 of the present invention and figure 1 Compared with the corrosive environment monitoring device 1 of the embodiment 1, it is obvious that the design has multiple groups (in Figure 16 The metal thin films of the same configuration are common to the two groups in the middle, but the size of the channel structure 4 and the opening 5 which are the corrosion detection conditions in the corrosion environment monitoring part are set differently.

[0079] It demonstrates more concretely. In the corrosive environment monitoring device 1 , a sensor unit composed of two sets of metal thin films 2 attached on a transparent substrate 3 is disposed. The metal films 2 all ...

Embodiment 3

[0086] exist Figure 21 A configuration example of a corrosion environment monitoring device according to Embodiment 3 of the present invention is shown in . Figure 21 It is a form that uses the relationship of the wide and narrow metal thin films of Example 1 and the relationship of the high and low openings of Example 2 in combination.

[0087] Here, the combination of the channel structures with different heights of the openings and the metal thin films of different widths in Example 2 constitutes a sensing part having a channel with a narrow metal thin film attached to a high opening and a wide metal thin film attached to a channel with a high opening. The device of the sensing part of the channel of the low opening part.

[0088] Thus, a good linear relationship between the ratio of the length of the discoloration region and the corrosion thickness can be maintained, and by attaching a wide metal thin film to the sensing part of the channel with a low opening, the ASHRA...

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Abstract

The purpose of the present invention is to provide a corrosive environment monitoring device that can measure the degree of corrosion of a metal, on site without requiring a special analysis apparatus, in a narrow location in an electronic apparatus chassis to be diagnosed, over a period ranging from a short period to a long period, without requiring a power source such as a commercial power source, a storage battery, or the like. Provided is a corrosive environment monitoring device provided with a sensor unit formed by disposing a metal thin film (2) on part of a top or bottom surface or a side surface that faces an open section of a box-shaped passage structure with one end closed and the other end open, and covering the metal thin film with a transparent substrate. The corrosive environment monitoring device is characterized by being provided with a plurality of corrosive environment monitoring units disposed so that the open sections are adjacent, and in that the corrosion sensingconditions of the metal thin films of the plurality of corrosive environment monitoring units are configured to differ.

Description

technical field [0001] The present invention relates to a corrosive environment monitoring device for measuring the degree of corrosion caused by corrosive gas existing in an indoor environment, mainly an environment in which electrical and electronic devices are installed. Background technique [0002] In electrical and electronic devices, long-term reliability is required for the purpose of stably operating the target device. In addition, in order to increase the speed and save space, many power electronic components are equipped with a high-density mounting structure and a fine wiring structure or a thin-film plating structure. Slight corrosion damage in these power electronic components causes changes in electrical or magnetic properties to cause malfunctions or malfunctions, and therefore suppression of the corrosion damage is cited as a problem in the reliability of electric and electronic devices. In order to reflect corrosion prevention measures corresponding to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/04
Inventor 南谷林太郎
Owner HITACHI LTD
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