CN213635563U - Megasometer magnet steel device - Google Patents
Megasometer magnet steel device Download PDFInfo
- Publication number
- CN213635563U CN213635563U CN202023070438.7U CN202023070438U CN213635563U CN 213635563 U CN213635563 U CN 213635563U CN 202023070438 U CN202023070438 U CN 202023070438U CN 213635563 U CN213635563 U CN 213635563U
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- magnetic
- mercury
- shell
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a mercury-measuring instrument magnet steel device, including shell, the inside lining of setting in the shell and the radial magnetic field mechanism of setting between inside lining and shell, inside lining and the coaxial setting of shell, the inside of inside lining is equipped with the lamp chamber, and the device is still including the logical unthreaded hole that runs through shell side, radial magnetic field mechanism side and inside lining side and be linked together with the lamp chamber simultaneously, and the magnetic field direction of radial magnetic field mechanism is mutually perpendicular with the central axis that leads to the unthreaded hole. Compared with the prior art, the utility model discloses use magnetic field stack principle, rationally use main magnet steel, reverse magnet steel, transition magnet steel to constitute mercury vapor logging appearance radial magnetic field mechanism. The magnetic steels with different magnetization directions are arranged according to a set rule to form a radial magnetic field, and the direction of the radial magnetic field is vertical to the central axis of the light through hole, so that magnetic lines of force emitted by the radial magnetic field mechanism are superposed (focused) in a set space, the working air gap achieves extremely high magnetic field intensity, and the requirement of high-sensitivity testing is further met.
Description
Technical Field
The utility model belongs to the technical field of mercury vapor detector, a mercury vapor detector magnet steel device is related to.
Background
Zeeman atomic absorption mercury gauges typically use a pen-type mercury lamp to radiate the characteristic line of mercury. The principal analytical spectral line of mercury is 254nm, and Zeeman splitting is realized under the action of an external magnetic field to form two components in different polarization states. In the case of a light ray propagating perpendicular to the direction of the magnetic field, the two different components of polarized light are at different wavelengths, so-called zeeman splitting. The difference between the split line and the original center wavelength is called the split distance, and the larger the split distance is, the higher the analysis sensitivity is. According to theoretical calculation and actual test, the magnetic field intensity of mercury 254nm spectral line needs to be as high as 1.7T to ensure that the analysis sensitivity reaches the highest.
The magnetic steel device of the Zeeman atomic absorption mercury vapor detector consists of two circular magnetic steels, wherein the outer diameter of the magnetic steel is 16mm, the thickness of the magnetic steel is 7mm, and the distance between the two magnetic steels is 4 mm; the inner cavity of the magnetic steel is horn-shaped, the middle magnetic field intensity is 0.5T, and the magnetic steel is an axial magnetic field. The mercury detector magnetic steel adopts a common permanent magnetic circuit structure, and has the advantages of small volume, low cost and poor sensitivity, and the magnetic field intensity can not reach 1.7T in the space with a three-way working air gap, so that the requirement of high-sensitivity test can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mercury-measuring instrument magnet steel device can improve the magnetic field intensity in the working air gap, makes it reach 1.7T, satisfies the demand of market to the high sensitivity zeeman atomic absorption mercury-measuring instrument.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a mercury-measuring instrument magnet steel device, the device includes the shell, sets up the inside lining in the shell and sets up the radial magnetic field mechanism between inside lining and shell, inside lining and the coaxial setting of shell, the inside of inside lining be equipped with the lamp chamber, the device still including running through shell side, radial magnetic field mechanism side and inside lining side simultaneously and the logical unthreaded hole that is linked together with the lamp chamber, the magnetic field direction of radial magnetic field mechanism be perpendicular with the central axis that leads to the unthreaded hole.
Furthermore, the shell comprises a cylinder body and a pair of end covers respectively arranged at two ends of the cylinder body, and the light through hole penetrates through the side face of the cylinder body.
Furthermore, two ends of the lining respectively penetrate through the two end covers.
Furthermore, the radial magnetic field mechanism is fixedly bonded with the inner lining and the outer shell.
Furthermore, the shell is provided with a fixing screw hole.
Furthermore, the lamp cavity and the light through hole form a three-way working air gap. The central axis of the lamp cavity is vertical to the central axis of the light through hole.
Furthermore, the radial magnetic field mechanism comprises main magnetic steel, transition magnetic steel and reverse magnetic steel, and the transition magnetic steel is arranged between the main magnetic steel and the reverse magnetic steel.
Furthermore, the magnetization direction of the main magnetic steel is along the radial direction of the lamp cavity, the magnetization direction of the reverse magnetic steel is opposite to that of the main magnetic steel, and the magnetization direction of the transition magnetic steel and the magnetization direction of the main magnetic steel form an included angle. The transition magnetic steel plays a transition role between the main magnetic steel and the reverse magnetic steel.
Furthermore, the radial magnetic field mechanism comprises 2 main magnetic steels, 4 transition magnetic steels and 2 reverse magnetic steels; 2 main magnetic steels are symmetrically arranged on two sides of the lining, opposite in heteropolar and same in magnetization direction; the 2 reverse magnetic steels are symmetrically arranged at two sides of the lining, and the magnetization direction of the reverse magnetic steels is opposite to that of the 2 main magnetic steels; the magnetization direction of the transition magnetic steel is vertical to that of the main magnetic steel.
Or, the radial magnetic field mechanism includes 2 main magnetic steels, 8 (4n, n is 2, 3 … …, etc.) transition magnetic steels and 2 reverse magnetic steels.
Preferably, the main magnetic steel, the reverse magnetic steel and the transition magnetic steel have the same shape, and the outward divergent light through hole is formed in one of the reverse magnetic steels.
Furthermore, the light through hole is in a circular truncated cone shape or a prismatic table shape.
The utility model discloses in:
the light-transmitting hole is used as a light channel, so that the mercury-measuring instrument can receive the Zeeman spectrum emitted by the mercury lamp under the action of a high-intensity magnetic field.
The radial magnetic field mechanism is used to provide a radial magnetic field of extremely high magnetic field strength.
The shell is used for fixing and sealing the radial magnetic field mechanism in the shell, and is fixedly bonded with the radial magnetic field mechanism. The shell is provided with a fixing screw hole for connecting with relevant parts of the mercury lamp and the mercury photometer.
The inner lining is used for providing a lamp cavity with correct shape and size, and the inner lining is fixedly bonded with the radial magnetic field mechanism.
The lamp chamber refers to a space provided by the inner liner to place and fix the mercury lamp.
Compared with the prior art, the utility model discloses use magnetic field stack principle, rationally use main magnet steel, reverse magnet steel, transition magnet steel to constitute mercury vapor logging appearance radial magnetic field mechanism. The magnetic steels with different magnetization directions are arranged according to a set rule to form a radial magnetic field, and the direction of the radial magnetic field is vertical to the central axis of the light through hole, so that magnetic lines of force emitted by the radial magnetic field mechanism are superposed (focused) in a set space (namely, in the lining), the working air gap achieves extremely high magnetic field intensity, and the requirement of high-sensitivity test is further met.
Drawings
Fig. 1 is a schematic front sectional view of a magnetic steel device in embodiment 1;
FIG. 2 is a left side view schematically showing the structure of the radial magnetic field mechanism in embodiment 1;
FIG. 3 is a left side view schematically showing the structure of the radial magnetic field mechanism in embodiment 2;
the notation in the figure is:
1-shell, 2-inside lining, 3-lamp cavity, 4-light through hole, 5-cylinder, 6-end cap, 7-main magnetic steel, 8-transition magnetic steel, 9-reverse magnetic steel.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1:
fig. 1 and 2 show a mercury-measuring-instrument magnetic steel device, which comprises a shell 1, a lining 2 arranged in the shell 1, and a radial magnetic field mechanism arranged between the lining 2 and the shell 1, wherein the lining 2 and the shell 1 are coaxially arranged, a lamp cavity 3 is arranged inside the lining 2, the device further comprises a light through hole 4 which simultaneously penetrates through the side surface of the shell 1, the side surface of the radial magnetic field mechanism and the side surface of the lining 2 and is communicated with the lamp cavity 3, and the magnetic field direction of the radial magnetic field mechanism is vertical to the central axis of the light through hole 4.
Wherein, shell 1 includes barrel 5 and a pair of end cover 6 that sets up respectively at barrel 5 both ends, and logical unthreaded hole 4 runs through the barrel 5 side. The two ends of the liner 2 respectively pass through the two end covers 6. The radial magnetic field mechanism is fixedly bonded with the lining 2 and the shell 1. The shell 1 is provided with a fixing screw hole. The lamp cavity 3 and the light through hole 4 form a three-way working air gap.
As shown in fig. 2, the radial magnetic field mechanism includes a main magnetic steel 7, a transition magnetic steel 8 and a reverse magnetic steel 9, and the transition magnetic steel 8 is disposed between the main magnetic steel 7 and the reverse magnetic steel 9. The magnetization direction of the main magnetic steel 7 is along the radial direction of the lamp cavity 3, the magnetization direction of the reverse magnetic steel 9 is opposite to the magnetization direction of the main magnetic steel 7, and the magnetization direction of the transition magnetic steel 8 and the magnetization direction of the main magnetic steel 7 form an included angle.
The radial magnetic field mechanism comprises 2 main magnetic steels 7, 4 transition magnetic steels 8 and 2 reverse magnetic steels 9; the 2 main magnetic steels 7 are symmetrically arranged at two sides of the lining 2, opposite in heteropolar and same in magnetization direction; the 2 reverse magnetic steels 9 are symmetrically arranged at two sides of the lining 2, and the magnetization direction is opposite to that of the 2 main magnetic steels 7; the magnetization direction of the transition magnetic steel 8 is vertical to the magnetization direction of the main magnetic steel 7. The light through hole 4 is in a round table shape.
The magnetic steel device applies the principle of magnetic field superposition, and a radial magnetic field mechanism of the mercury vapor detector is reasonably formed by the main magnetic steel 7, the reverse magnetic steel 9 and the transition magnetic steel 8. The magnetic steels with different magnetization directions are arranged according to a set rule to form a radial magnetic field, and the direction of the radial magnetic field is vertical to the central axis of the light through hole 4, so that magnetic lines of force emitted by the radial magnetic field mechanism are superposed (focused) in a set space (namely the lining 2), a working air gap achieves extremely high magnetic field intensity, and the requirement of high-sensitivity test is further met.
Example 2:
in this embodiment, the radial magnetic field mechanism includes 2 main magnetic steels 7, 8 transition magnetic steels 8 and 2 reverse magnetic steels 9, the magnetization direction of the transition magnetic steels 8 is as shown in fig. 3, and the light through hole 4 is in a frustum shape. The rest is the same as example 1.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. The utility model provides a mercury-meter magnet steel device, its characterized in that, the device include shell (1), set up inside lining (2) in shell (1) and set up the radial magnetic field mechanism between inside lining (2) and shell (1), inside lining (2) and shell (1) coaxial setting, the inside of inside lining (2) be equipped with lamp chamber (3), the device still including running through shell (1) side, radial magnetic field mechanism side and inside lining (2) side and logical unthreaded hole (4) that are linked together with lamp chamber (3) simultaneously, the magnetic field direction of radial magnetic field mechanism be perpendicular with the central axis that leads to unthreaded hole (4).
2. A mercury amalgam magnetic steel device according to claim 1, wherein the housing (1) comprises a cylinder (5) and a pair of end caps (6) respectively disposed at two ends of the cylinder (5), and the light hole (4) penetrates through the side surface of the cylinder (5).
3. A mercury-meter magnetic steel device according to claim 2, characterized in that the two ends of the lining (2) respectively pass through the two end covers (6).
4. A mercury-meter magnetic steel device according to claim 2, characterized in that the radial magnetic field mechanism is fixed to the inner lining (2) and the outer casing (1) by adhesion.
5. A mercury porosimeter magnet assembly according to claim 1, wherein said housing (1) is provided with fixing screw holes.
6. A mercury-meter magnetic steel device according to claim 1, characterised in that the lamp cavity (3) and the light-through hole (4) form a three-way working air gap.
7. A mercury-meter magnetic steel device according to claim 1, characterized in that the radial magnetic field mechanism comprises a main magnetic steel (7), a transition magnetic steel (8) and a reverse magnetic steel (9), the transition magnetic steel (8) being arranged between the main magnetic steel (7) and the reverse magnetic steel (9).
8. A kind of mercury porosimeter magnet steel device according to claim 7, characterized in that, the magnetization direction of the said main magnet steel (7) is along the radial direction of the lamp cavity (3), the magnetization direction of the said reverse magnet steel (9) is opposite to the magnetization direction of the main magnet steel (7), the magnetization direction of the said transition magnet steel (8) and the magnetization direction of the main magnet steel (7) form an included angle with each other.
9. A mercury-meter magnetic steel device according to claim 8, characterized in that the radial magnetic field means comprises 2 main magnetic steels (7), 4 transition magnetic steels (8) and 2 reverse magnetic steels (9); the 2 main magnetic steels (7) are symmetrically arranged at two sides of the lining (2) and have opposite poles and the same magnetization direction; the 2 reverse magnetic steels (9) are symmetrically arranged at two sides of the lining (2), and the magnetization direction is opposite to that of the 2 main magnetic steels (7); the magnetization direction of the transition magnetic steel (8) is vertical to the magnetization direction of the main magnetic steel (7).
10. A mercury-meter magnetic steel device according to claim 1, wherein the light-passing hole (4) is truncated cone-shaped or truncated pyramid-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023070438.7U CN213635563U (en) | 2020-12-18 | 2020-12-18 | Megasometer magnet steel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023070438.7U CN213635563U (en) | 2020-12-18 | 2020-12-18 | Megasometer magnet steel device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213635563U true CN213635563U (en) | 2021-07-06 |
Family
ID=76640005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023070438.7U Active CN213635563U (en) | 2020-12-18 | 2020-12-18 | Megasometer magnet steel device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213635563U (en) |
-
2020
- 2020-12-18 CN CN202023070438.7U patent/CN213635563U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2006036268A3 (en) | Chip-scale atomic clock (csac) and method for making same | |
| CN110308520B (en) | Optical assembly with magnetic ring being externally arranged and chip positioning angle and pressing block structure thereof | |
| CN213635563U (en) | Megasometer magnet steel device | |
| CN109904056A (en) | A kind of chemi-ionization based on atmospherical discharges-VUV single-photon ionization composite ionization source device | |
| CN101533160B (en) | Faraday polarization apparatus | |
| CN202948899U (en) | Electrostatic lens device based on vacuum ultra violet (VUV) lamp ionization source | |
| CN101866811B (en) | Ion source of small-sized magnetic deflection mass spectrometer | |
| WO2005022581A3 (en) | Particle optical apparatus | |
| CN103116211A (en) | Method for clamping curved prism | |
| CA2045632A1 (en) | Partial pressure measuring cell with cold-cathode ion source for leak detection in vacuum systems | |
| CN109449074A (en) | A kind of Ion Extraction device for mass spectrograph ionization source | |
| CN211606537U (en) | 1/4 wave plate assembly for laser communication | |
| CN111245517A (en) | 1/4 wave plate assembly for laser communication | |
| CN105004328B (en) | A kind of utilization laser pen positions the positioning fixture of invisible laser | |
| CN207730643U (en) | Light path system before inductively-coupled plasma spectrometer | |
| CN2837665Y (en) | Adjustable weak light source for photomultiplier | |
| CN208985950U (en) | A kind of Ion Extraction device for mass spectrograph ionization source | |
| CN201829450U (en) | Vacuum chamber system for mass spectrograph | |
| CN202534627U (en) | X-ray tube for X-ray fluorescence spectrometer | |
| GB1404693A (en) | Microanalyser convertible into a mass-spectrometer | |
| CN204422493U (en) | A kind of flame ionization ditector | |
| CN111049519B (en) | Filtering device, system and method for mercury ion microwave frequency standard | |
| CN212207089U (en) | Ultraviolet light source for spectrophotometer | |
| CN111812079A (en) | Dielectric barrier discharge measuring device | |
| CN114441465B (en) | Absorption luminosity detecting system of micro-fluidic chip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |