Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Magnetism measuring device, manufacturing method of magnetism measuring device, gas cell, and manufacturing method of gas cell

A manufacturing method and magnetic measurement technology, applied in measuring devices, magnetic resonance measurement, magnetic field measurement using magneto-optical equipment, etc., can solve the problem of reduction, reduction in manufacturing yield of gas chambers and magnetic measurement devices, and inability to maintain magnetic measurement for a long time Device sensitivity and other issues

Inactive Publication Date: 2016-11-02
SEIKO EPSON CORP
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem that the manufacturing yield of the gas cell and the magnetic measuring device may decrease, and the sensitivity of the magnetic measuring device may not be maintained for a long period of time due to the reduction in the life of the gas cell.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magnetism measuring device, manufacturing method of magnetism measuring device, gas cell, and manufacturing method of gas cell
  • Magnetism measuring device, manufacturing method of magnetism measuring device, gas cell, and manufacturing method of gas cell
  • Magnetism measuring device, manufacturing method of magnetism measuring device, gas cell, and manufacturing method of gas cell

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0050]

[0051] refer to figure 1 The configuration of the magnetic measurement device according to the first embodiment will be described. figure 1 It is a block diagram showing the structure of the magnetic measuring device of the first embodiment. The magnetic measurement device 100 according to the first embodiment is a magnetic measurement device using Nonlinear Magneto-Optical Rotation (NMOR). The magnetic measuring device 100 is used, for example, as a biological state measuring device (magnetocardiometer, magnetoencephalometer, etc.) . The magnetic measuring device 100 can also be used for a metal detector or the like.

[0052] Such as figure 1 As shown, the magnetic measurement device 100 includes a light source 1, an optical fiber 2, a connector 3, a polarizing plate 4, a gas chamber 10, a polarized light separator 5, a photo detector (Photo Detector: PD) 6, a photo detector 7, a signal processing Circuit 8 and display device 9 . An alkali metal gas (alkali m...

no. 2 Embodiment approach

[0113] In the second embodiment, the structure of the gas cell is the same as that of the first embodiment, but a part of the method of manufacturing the gas cell is different. More specifically, there is a difference in that a partition plate is used in the cooling step of manufacturing the gas chamber. Here, differences from the first embodiment in the cooling step will be described.

[0114]

[0115] Figure 8 It is a figure explaining the heating process and cooling process of the manufacturing method of the gas cell of 2nd Embodiment. In the heating step and cooling step of the second embodiment, as Figure 8 As shown, the configuration divides the chamber 202 of the oven 200 into the inside ( Figure 8 The partition plate 206 of the first part 202a on the +X direction side) and the second part 202b on the door 204 side is different from the first embodiment.

[0116]The partition plate 206 is formed of a plate-shaped member. The purpose of the partition plate 206 ...

no. 3 Embodiment approach

[0122] In the third embodiment, a part of the structure of the gas cell is different from the above-mentioned embodiment, and accordingly, the forming process in the manufacturing method of the gas cell is different. Here, differences from the above-described embodiment in the structure and formation steps of the gas cell will be described. Figure 10 It is a figure explaining the formation process of 3rd Embodiment.

[0123]

[0124] Figure 10 (c) shows the gas chamber 10A at the end of the forming process of the third embodiment. Such as Figure 10 As shown in (c), the gas chamber 10A of the third embodiment consists of a chamber portion 12A as a closed container and a cover portion 19 similar to the above embodiment (refer to figure 2 (a)) constitutes. The chamber portion 12A includes a concave container body 12a and an upper cover 12b disposed on the upper side of the container body 12a. The container main body 12 a has a recessed portion serving as the main chamb...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a magnetism measuring device and a manufacturing method of the magnetism measuring device. The present invention provides a small-sized and long-usage-life gas cell that can be stably manufactured, and a magnetism measuring apparatus having the gas cell, the gas cell and a method of manufacturing the magnetism measuring apparatus. The magnetism measuring device (100) is characterized by including: a wall (11) forming a cell portion (12); an opening (18) which is open to a portion of the wall (11); a sealing material (30) which seals the opening (18); a coating layer (32) which covers the sealing material (30) on an inside of the cell portion (12); and an alkali metal gas (13) which is sealed in the cell portion (12).

Description

technical field [0001] The invention relates to a magnetic measuring device, a method for manufacturing the magnetic measuring device, a gas chamber and a method for manufacturing the gas chamber. Background technique [0002] There is known an optically pumped magnetic measuring device that irradiates linearly polarized light to a gas cell sealed with an alkali metal gas, and measures a magnetic field from a rotation angle of a polarized light plane (see, for example, Patent Document 1). Patent Document 1 discloses a gas chamber structure in which an ampoule enclosing an alkali metal is housed in the chamber to close the chamber, and by irradiating laser light to the ampoule, a through hole is formed in the glass tube of the ampoule to evaporate the alkali metal in the ampoule. , so that the vapor (gas) is filled inside the chamber. [0003] According to the description in Patent Document 1, the chamber is formed by bonding a case (container) and a cover (cover) made of gl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/032G01R33/00G01R33/26
Inventor 藤井永一长坂公夫
Owner SEIKO EPSON CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com