CN102280344A - Shielding cover for quadrupole in mass spectrometer - Google Patents
Shielding cover for quadrupole in mass spectrometer Download PDFInfo
- Publication number
- CN102280344A CN102280344A CN201010194004XA CN201010194004A CN102280344A CN 102280344 A CN102280344 A CN 102280344A CN 201010194004X A CN201010194004X A CN 201010194004XA CN 201010194004 A CN201010194004 A CN 201010194004A CN 102280344 A CN102280344 A CN 102280344A
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- mass spectrometer
- shielding cover
- radome
- quadrupole
- level
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Abstract
The invention discloses a shielding cover of a quadrupole in a mass spectrometer. The shielding cover is a barrel body with two penetrated ends, wherein the barrel body comprises a head part, a middle part and a tail part; the head part is of an annular structure, an annular plane of the annular structure is at least provided with a bolt positioning hole, and the annular edge of the annular structure is at least provided with a routing gap; the middle part is of a barrel-structured structure, wherein a barrel body of the barrel-shaped structure is at least provided with a routing hole; the annular edge of the annular structure of the head part protrudes out of the barrel body at the middle part, and the tail part is smoothly spliced with the middle part; and the shielding cover is made of metal materials. In the application process of the shielding cover of the quadrupole in the mass spectrometer, the quadrupole device is arranged in a cavity of the shielding cover, and therefore the shielding effect on the quadrupole is strong in pertinency and is good.
Description
Technical field
The present invention relates to a kind of radome, be specifically related to a kind of radome that is used for mass spectrometer level Four bar.
Background technology
Mass spectrometer claims mass spectrograph again, a kind of separation with detect different isotopic instruments, promptly according to charged particle can deflection in electromagnetic field principle, by the quasi-instrument that the mass discrepancy of material atom, molecule or molecular fragment is separated and detection material is formed.Mass spectrometer is a core with ion source, mass analyzer and ion detector.Ion source is to make sample molecule Ionized device under high vacuum condition.Molecule after the ionization is because of having accepted multiple fragment ion and the neutral particle that too much energy can further be fragmented into less quality.They obtain the mean kinetic energy with identical energy and enter mass analyzer under the accelerating field effect.Mass analyzer is to enter the ion of different quality wherein simultaneously, by the device of mass-to-charge ratio m/z size separation.Ion after the separation enters ion detector successively, gathers and amplifies ion signal, and machine is handled as calculated, is depicted as mass spectrogram.Ion source, mass analyzer and ion detector all respectively have polytype.Mass spectrometer is divided into isotope mass spectrometer, inorganic mass spectrometer and organic mass spectrometer by range of application; Be divided into high-resolution, middle resolution and Low Resolution Mass Spectra instrument by resolving power; Be divided into static instrument and dynamic instrument by operation principle.
Has a level Four lever apparatus in the mass spectrometric vacuum chamber, the level Four bar connects radio-frequency power supply, can form an electric field around it, must shield this electric field fully, prevent to be subjected to the interference of destabilizing factor (from outside electromagnetic wave such as lead, cable, component, circuit or system).
In the existing solution,,, do not have specific aim, can not well play shielding action the level Four lever apparatus though this design has certain shield effectiveness by at the sticking obedient copper sheet of mass spectrometric vacuum cavity sealing place.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of radome that is used for mass spectrometer level Four bar, the structure of this device has played a good electromagnetic shielding action to the level Four bar.
For solving the problems of the technologies described above, realize above-mentioned technique effect, the present invention adopts following technical scheme:
A kind of radome that is used for mass spectrometer level Four bar, described radome are the cylindrical shell that two ends connect, and described cylindrical shell is made up of head, middle part and afterbody.
Further, described head is a circulus, has a bolt location hole on the plane of a loop of described circulus at least, and the ring edge of described circulus has a cabling breach at least.
Further, described middle part is a tubular structure, has a cable hole on the cylindrical shell of described tubular structure at least.
Preferably, the ring edge of the circulus of described head protrudes the cylindrical shell at described middle part, and smoothly splice at described afterbody and described middle part.
Further, the material of described radome is a metal material.
In application process, the level Four lever apparatus is positioned in the radome cavity, and is therefore with strong points to the shielding action of level Four bar, effective.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structural representation that is used for the radome of mass spectrometer level Four bar of the present invention.
Number in the figure explanation: 1. head, 2. middle part, 3. afterbody, 4. plane of a loop, 5. bolt location hole, 6. ring edge, 7. cabling breach, 8. cable hole.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
See also shown in Figure 1ly, a kind of radome that is used for mass spectrometer level Four bar, described radome are the cylindrical shell that two ends connect, and described cylindrical shell is made up of head 1, middle part 2 and afterbody 3.
Further, described head 1 is a circulus, has a bolt location hole 5 on the plane of a loop 4 of described circulus at least, and the ring edge 6 of described circulus has a cabling breach 7 at least.
Further, described middle part 2 is a tubular structure, has a cable hole 8 on the cylindrical shell of described tubular structure at least.
Preferably, the ring edge of the circulus of described head 1 protrudes the cylindrical shell at described middle part 2, and described afterbody 3 smoothly splices with described middle part 2.
Further, the material of described radome is a metal material.
More than the radome device that is used for mass spectrometer level Four bar that the embodiment of the invention provided is described in detail; for one of ordinary skill in the art; thought according to the embodiment of the invention; the part that all can change in specific embodiments and applications, therefore all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (3)
1. radome that is used for mass spectrometer level Four bar is characterized in that: described radome is the cylindrical shell that two ends connect, and described cylindrical shell is made up of head (1), middle part (2) and afterbody (3);
Described head (1) is a circulus, has a bolt location hole (5) on the plane of a loop of described circulus (4) at least, and the ring edge (6) of described circulus has a cabling breach (7) at least;
Described middle part (2) is a tubular structure, has a cable hole (8) on the cylindrical shell of described tubular structure at least.
2. the radome that is used for mass spectrometer level Four bar according to claim 1 is characterized in that, the ring edge of the circulus of described head (1) protrudes the cylindrical shell of described middle part (2), described afterbody (3) and the level and smooth splicing in described middle part (2).
3. the radome that is used for mass spectrometer level Four bar according to claim 1 and 2 is characterized in that: the material of described radome is a metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010194004XA CN102280344A (en) | 2010-06-08 | 2010-06-08 | Shielding cover for quadrupole in mass spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010194004XA CN102280344A (en) | 2010-06-08 | 2010-06-08 | Shielding cover for quadrupole in mass spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102280344A true CN102280344A (en) | 2011-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010194004XA Pending CN102280344A (en) | 2010-06-08 | 2010-06-08 | Shielding cover for quadrupole in mass spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102280344A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4731533A (en) * | 1986-10-15 | 1988-03-15 | Vestec Corporation | Method and apparatus for dissociating ions by electron impact |
| CN101236877A (en) * | 2007-01-31 | 2008-08-06 | 麦克诺塞伊可系统有限公司 | Micro-fabricated electrostatic quadrupole lens |
-
2010
- 2010-06-08 CN CN201010194004XA patent/CN102280344A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4731533A (en) * | 1986-10-15 | 1988-03-15 | Vestec Corporation | Method and apparatus for dissociating ions by electron impact |
| CN101236877A (en) * | 2007-01-31 | 2008-08-06 | 麦克诺塞伊可系统有限公司 | Micro-fabricated electrostatic quadrupole lens |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |