Inflatable accelerometer core and inflation method thereof

Abstract

The invention provides an inflatable accelerometer movement and an inflation method thereof, and can solve the problems that internal parts and an adhesive are oxidized to form redundant substances due to the fact that air is packaged in an existing movement when an accelerometer is assembled, the airtightness of the movement cannot be detected, and the reliability of the accelerometer is influenced. A gas flow channel is arranged at the end part, far away from the pendulous reed, of one yoke provided with an annular notch in the meter core, a charging connector is arranged on the end surface of the end part, an exhaust hole communicated with the gas flow channel is arranged at the end part, far away from the pendulous reed, of the other yoke, and the gas flow channel is a straight-through gas flow channel; or the gas flow channel comprises a sliding cavity, an L-shaped gas flow channel communicated with the gas flow channel and a connecting flow channel communicated with the outside through the charging connector, a sliding block with a channel is arranged in the sliding cavity, a first opening and a second opening are formed in the inner wall face of the sliding cavity, and a gap is formed between the sliding block and the inner wall of the sliding cavity to form a cavity flow channel; the sliding block is used for sliding in the sliding cavity, and the sliding block has a first position and a second position.

Description

Technical Field

[0001] The invention relates to a watch core and an inflation method thereof, in particular to an inflatable accelerometer watch core and an inflation method thereof. Background Art

[0002] The quartz accelerometer is an inertial navigation device that uses Newton's second law (law of inertia) to measure acceleration. It is one of the core components of the navigation system. The quartz accelerometer includes a movement, a servo circuit, and a housing. Figure 1 It is a structural schematic diagram of an existing quartz accelerometer movement. Figure 2 yes Figure 1 Schematic diagram of the structure of the torquer. Figure 3 yes Figure 1 Schematic diagram of the structure of the middle pendulum assembly. Figure 4 yes Figure 3 The structural diagram of the middle swing piece is composed of Figure 1-Figure 4 It can be seen that the watch movement includes a pendulum assembly 01 and two torquers 02 symmetrically arranged on both sides of the pendulum assembly 01, the pendulum assembly 01 includes a pendulum piece 03 and two moving coil assemblies 04, the pendulum piece 03 includes an outer ring 031 and a swing tongue 032 coaxially arranged in the outer ring 031, two flexible beams 033 are arranged side by side between the outer ring 031 and the swing tongue 032, the inner circle radius of the outer ring 031 is larger than the outer arc radius of the swing tongue 032, an arc flow channel is formed between the outer ring 031 and the swing tongue 032, a plurality of bosses 034 are arranged on two opposite side surfaces of the outer ring 031, a first flow channel is formed between adjacent bosses 034, each first flow channel is connected to the arc flow channel, two moving coil assemblies 04 are symmetrically bonded to two opposite side surfaces of the swing tongue 032 by adhesive 05, each torquer 02 includes a yoke 020 , a magnet 021 arranged on the inner bottom surface of the yoke 020, and a pole piece 022 arranged on the end surface of the magnet 021 and located in the corresponding moving coil assembly 04, a first annular cavity is formed between the yoke 020, the magnet 021 and the pole piece 022 in each torquer 02, the open end faces of the two yokes 020 are respectively abutted against the bosses 034 on the two opposite side surfaces of the outer ring 031, and the open end side walls of the two yokes 020 are sealed and connected by an annular belly band 06, the first annular cavity of one torquer 02, the arc flow channel of the pendulum piece 03, all the first flow channels on the two opposite side surfaces, and the first annular cavity of the other torquer 02 are connected to form a gas flow path 07, wherein an annular notch is opened circumferentially on one of the yoke side walls 020 away from the pendulum piece 03, and the annular notch is used to install an isolation ring 08. At present, when assembling a quartz accelerometer with an existing watch movement, the following problems mainly exist: 1) Since the watch movement is encapsulated with air, it is easy to cause the internal parts and adhesives of the watch movement to oxidize and form excess materials; 2) Since the watch movement is encapsulated with air, it is impossible to detect the air tightness of the watch movement, thereby affecting the reliability of the quartz accelerometer. Summary of the invention

[0003] The purpose of the present invention is to solve the technical problems that when a quartz accelerometer is assembled with an existing watch movement, air is encapsulated inside the watch movement, which easily leads to oxidation of internal parts and adhesives of the watch movement to form redundant materials, and the air tightness of the watch movement cannot be detected, thereby affecting the reliability of the quartz accelerometer, and to provide an inflatable accelerometer watch movement and an inflation method thereof.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] An inflatable accelerometer movement, comprising a pendulum assembly and two torquers symmetrically arranged on both sides of the pendulum assembly; the pendulum assembly comprises a pendulum piece and two moving coil assemblies; the pendulum piece comprises an outer ring and a swing tongue coaxially arranged inside the outer ring, the inner circle radius of the outer ring is greater than the outer arc radius of the swing tongue, an arc-shaped flow channel is formed between the outer ring and the swing tongue, a plurality of bosses are arranged on two opposite sides of the outer ring, a first flow channel is formed between adjacent bosses, and each first flow channel is connected to the arc-shaped flow channel; two moving coil assemblies are symmetrically connected to two opposite sides of the swing tongue; each torquer comprises a yoke iron, a set The first annular cavity is formed between the magnetic steel on the inner bottom surface of the yoke and the magnetic pole piece arranged on the end surface of the magnetic steel and located in the corresponding moving coil assembly; the end surfaces of the opening ends of the two yokes are respectively abutted against the corresponding bosses, and the side walls of the opening ends of the two yokes are sealed and connected through an annular belly band, and the first annular cavity of one torquer, the arc-shaped flow channel of the swing piece, all the first flow channels on the two opposite sides, and the first annular cavity of the other torquer are connected to form a gas flow path; an annular notch is opened in the circumferential direction on one of the side walls of the yoke away from the swing piece; its special features are:

[0006] The end of the yoke with an annular notch away from the swing piece is provided with a gas flow channel, and the end surface is provided with an air filling nozzle; the end of the other yoke away from the swing piece is provided with an exhaust hole connected to the gas flow channel;

[0007] The gas flow channel is a straight-through gas flow channel, which is connected to the gas flow path and is connected to the outside through the inflation nozzle;

[0008] Alternatively, the gas flow channel includes an L-shaped gas flow channel, a sliding chamber and a connecting flow channel; the L-shaped gas flow channel is connected to the gas flow path, and the connecting flow channel is connected to the outside through an inflation nozzle; a slider with a channel is provided in the sliding chamber, and the inner wall surface is provided with a first opening and a second opening which are respectively connected to the L-shaped gas flow channel and the connecting flow channel; a gap is provided between the slider and the inner wall of the sliding chamber to form a chamber flow channel; the slider is used to slide in the sliding chamber, and the slider has a first position and a second position, the first position is that the slider blocks the first opening and the second opening, and the second opening is connected to the chamber flow channel through the channel; the second position is that the slider blocks the second opening and maintains a gap with the first opening, and the second opening is connected to the chamber flow channel through the channel.

[0009] Furthermore, a sealing gasket is provided on the side wall of the sliding block close to the first opening;

[0010] The first position is that the sealing gasket blocks the first opening, the slider blocks the second opening, and the second opening is connected to the chamber flow channel through the channel;

[0011] The second position is that the slider blocks the second opening, the sealing gasket maintains a gap with the first opening, and the second opening is connected with the chamber flow channel through the channel.

[0012] Furthermore, the center dividing plane of the exhaust hole and the axial center dividing plane of the inflation nozzle are centrally symmetrical with respect to the axis of the swing piece;

[0013] The exhaust hole is a stepped hole whose diameter gradually increases from the inside to the outside.

[0014] At the same time, the present invention also provides an inflation method for the above-mentioned inflatable accelerometer core, which is special in that it includes the following steps:

[0015] Step 1, vertically point the inflation nozzle of the inflatable accelerometer core downward;

[0016] Step 2, starting to fill the gas flow channel with an initial pressure of 0.1 to 0.3 atmospheric pressure of the outside world through the inflation nozzle, the density of the inert gas is greater than the density of air, and gradually increasing the pressure of the inert gas during the inflation process until the pressure of the inert gas is 1.2 to 1.8 atmospheric pressure of the outside world, and each pressure increase value is 1 to 2 times the initial pressure; at the same time, using an inert gas mass spectrometer to detect the gas escaping from the exhaust hole;

[0017] Step 3, determine whether the inert gas mass spectrometer detects inert gas, if yes, execute step 4, otherwise continue to inflate and re-execute step 3;

[0018] Step 4: Stop inflation, seal the exhaust hole and the inflation nozzle, and complete the inflation of the inflatable accelerometer core.

[0019] Furthermore, step 1 is specifically as follows:

[0020] The inflation nozzle opening of the above-mentioned inflatable accelerometer core is vertically downward, and the slider is in the first position, and then the inflatable accelerometer core is rotated clockwise until the angle between the axial mid-plane connecting the flow channel and the ground horizontal line is 30°~60°, and the slider is in the second position, so that the L-shaped gas flow channel, chamber flow channel, channel, and second opening are connected.

[0021] Furthermore, step 4 is specifically as follows:

[0022] The inflatable accelerometer core is rotated counterclockwise until the angle between the axial mid-plane connecting the flow channel and the ground horizontal line is 30° to 60°, the slider is located in the first position, the exhaust hole and the inflation nozzle are blocked, and the inflation of the inflatable accelerometer core is completed.

[0023] Furthermore, step 4 also includes: using an inert gas mass spectrometer to detect the exhaust hole, the inflation nozzle and the circumferential abdominal band position respectively. If no inert gas is detected, the air tightness is good; if an inert gas is detected, the corresponding position is sealed.

[0024] Furthermore, the inert gas is argon, and the inert gas mass spectrometer is an argon mass spectrometer;

[0025] The sliding block is a lead block.

[0026] Beneficial effects of the present invention:

[0027] 1. The present invention provides an inflatable accelerometer movement, wherein since the movement is provided with an exhaust hole and an air filling nozzle, an inert gas can be filled into a gas flow path of the movement through the air filling nozzle, and the air in the gas flow path is discharged through the exhaust hole, thereby preventing the internal parts and adhesives of the movement from being oxidized.

[0028] 2. In the present invention, the design of the exhaust hole, L-shaped gas flow channel, sliding chamber and connecting flow channel can further improve the reliability of inflation and airtightness. The sealing gasket in the present invention can ensure elastic contact between the slider and the sliding chamber after inflation is completed, thereby achieving full sealing between rigid materials. In addition, the center plane of the exhaust hole and the axial center plane of the inflation nozzle are symmetrical with respect to the axis of the swing plate, which is conducive to exhausting the air in the gas flow path to the greatest extent.

[0029] 3. The present invention provides a method for inflating an inflatable accelerometer core, wherein the pressure of the inert gas is gradually increased during the inflation process, which is beneficial to exhausting the air in the gas flow path; after the inflation is completed, since the pressure of the inert gas is greater than the external atmospheric pressure, an inert gas mass spectrometer can be used to detect the air tightness of the core, and the leakage position can be identified and sealed, which is beneficial to ensure the reliability of the quartz accelerometer after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an existing quartz accelerometer movement;

[0031] Figure 2 yes Figure 1 Schematic diagram of the structure of the torquer;

[0032] Figure 3 yes Figure 1 A schematic diagram of the structure of the mid-swing assembly;

[0033] Figure 4 yes Figure 3 The structural diagram of the middle swing piece;

[0034] Figure 1-Figure 4 Among them, 01-pendulum assembly, 02-torque device, 020-yoke iron, 021-magnetic steel, 022-pole piece, 03-pendulum piece, 031-outer ring, 032-swing tongue, 033-flexible beam, 034-boss, 04-moving coil assembly, 05-adhesive, 06-annular belly band, 07-gas flow path, 08-isolating ring;

[0035] Figure 5 is a schematic structural diagram of an inflatable accelerometer core in other embodiments of the present invention;

[0036] Figure 6 yes Figure 5 Schematic diagram of the structure after inversion;

[0037] Figure 7 It is a structural schematic diagram of an embodiment of an inflatable accelerometer core of the present invention in an inverted state;

[0038] Figure 8 yes Figure 7 A partial enlarged view of

[0039] Fig. 9 It is a structural schematic diagram of a gas flow path during inflation in an inflation method embodiment of an inflatable accelerometer core of the present invention;

[0040] Fig.10 The present invention is a schematic structural diagram of a gas flow path when the inflation is completed in an inflation method embodiment of an inflatable accelerometer core.

[0041] Figure 5-Figure 10 Among them, 1-pendulum assembly, 2-torquer, 20-yoke, 21-magnet, 22-pole piece, 3-pendulum piece, 31-outer ring, 32-swing tongue, 4-moving coil assembly, 6-annular abdominal belt, 7-gas flow path, 8-gas flow channel, 9-exhaust hole, 10-inflating nozzle, 11-sealing part, 12-sliding chamber, 13-sealing ring, 14-slider, 15-channel, 16-sealing pad, 17-L-shaped gas flow channel, 19-connecting flow channel. DETAILED DESCRIPTION

[0042] like Figure 7-Figure 10As shown, an inflatable accelerometer movement includes a pendulum assembly 1 and two torquers 2 symmetrically arranged on both sides of the pendulum assembly 1. Specifically, the pendulum assembly 1 includes a pendulum piece 3 and two moving coil assemblies 4. The pendulum piece 3 includes an outer ring 31 and a swing tongue 32 coaxially arranged in the outer ring 31. The inner circle radius of the outer ring 31 is greater than the outer arc radius of the swing tongue 32. An arc flow channel is formed between the outer ring 31 and the swing tongue 32. A plurality of bosses are arranged on two opposite sides of the outer ring 31. A first flow channel is formed between adjacent bosses, and each first flow channel is connected to the arc flow channel. The two moving coil assemblies 4 are symmetrically connected to the two opposite sides of the swing tongue 32. Each torquer 2 includes a yoke 20, a magnet 21 arranged on the inner bottom surface of the yoke 20, and a pole piece 22 arranged on the end surface of the magnet 21 and located in the corresponding moving coil assembly 4. A first annular cavity is formed between the yoke 20, the magnet 21 and the pole piece 22. The open end surfaces of the two yokes 20 are respectively abutted against the corresponding bosses, and the open end side walls of the two yokes 20 are sealed and connected by an annular belly band 6. The first annular cavity of one torquer 2, the arc flow channel of the pendulum 3, all the first flow channels on the two opposite sides, and the first annular cavity of the other torquer 2 are connected to form a gas flow path 7. An annular notch is circumferentially provided on the side wall of one of the yokes 20 away from the pendulum piece 3, a gas flow channel 8 is provided at the end of the yoke 20 away from the pendulum piece 3, and an inflation nozzle 10 is provided on the end face, and an exhaust hole 9 communicating with the gas flow path 7 is provided on the end of the other yoke 20 away from the pendulum piece 3, the center dividing plane of the exhaust hole 9 and the axial center dividing plane of the inflation nozzle 10 are symmetrical with respect to the axis of the pendulum piece 3, and the exhaust hole 9 in this embodiment is a step hole whose aperture gradually increases from the inside to the outside. The gas flow channel 8 of this embodiment includes an L-shaped gas flow channel 17, a sliding chamber 12 and a connecting flow channel 19. The L-shaped gas flow channel 17 is communicated with the gas flow path 7, and the connecting flow channel 19 is communicated with the outside through the inflation nozzle 10. A slider 14 with a channel 15 is provided in the sliding chamber 12, and the inner wall surface is provided with a first opening and a second opening which are respectively communicated with the L-shaped gas flow channel 17 and the connecting flow channel 19. A gap is provided between the slider 14 and the inner wall of the sliding chamber 12 to form a chamber flow channel. The slider 14 is used to slide in the sliding chamber 12. A sealing gasket 16 is provided on the side wall of the slider 14 close to the first opening. The slider 14 has a first position and a second position. The first position is that the sealing gasket 16 blocks the first opening, the slider 14 blocks the second opening, and the second opening is communicated with the chamber flow channel through the channel 15. The second position is that the slider 14 blocks the second opening, the sealing gasket 16 maintains a gap with the first opening, and the second opening is communicated with the chamber flow channel through the channel 15.

[0043] This embodiment also provides a method for inflating the above-mentioned inflatable accelerometer core, comprising the following steps:

[0044] Step 1: Figure 7-Figure 8As shown, the inflatable nozzle 10 of the inflatable accelerometer core is opened vertically downward, and the slider 14 is in the first position, and then the inflatable accelerometer core is rotated clockwise until the angle between the axial mid-plane connecting the flow channel 19 and the ground horizontal line is 30° to 60°, and the slider 14 is in the second position, so that the L-shaped gas flow channel 17, the chamber flow channel, the channel 15, and the second opening are connected. In this embodiment, until the angle between the axial mid-plane connecting the flow channel 19 and the ground horizontal line is 60°, at this time, the slider 14 abuts against the inner wall of the sliding chamber 12 away from the L-shaped gas flow channel;

[0045] Step 2, starting to fill the gas flow channel 8 with argon gas with an initial pressure of 0.1 atmospheric pressure through the inflation nozzle 10 (since the density of argon gas is greater than that of air, during the inflation process, the air will float above the argon gas, which is conducive to exhausting the air), gradually increasing the pressure of the argon gas during the inflation process until the pressure of the argon gas is 1.5 atmospheric pressures, and the pressure increase value each time is twice the initial pressure; at the same time, using an argon mass spectrometer to detect the gas escaping from the exhaust hole 9;

[0046] Step 3, determine whether the argon mass spectrometer detects argon gas, if so, execute step 4, otherwise continue to inflate and re-execute step 3;

[0047] Step 4, rotate the inflatable accelerometer core counterclockwise until the angle between the axial mid-plane connecting the flow channel 19 and the horizontal line of the ground is 60°, the slider 14 is in the first position, the exhaust hole 9 is sealed with the external sealing member 11 in conjunction with the sealing ring 13, and the inflation nozzle 10 is sealed by soldering to complete the inflation of the inflatable accelerometer core, and then perform subsequent operations. Specifically, the subsequent operations are to use an argon mass spectrometer to detect the exhaust hole 9, the inflation nozzle 10 and the position of the annular abdominal band 6 respectively. If no argon is detected, the airtightness is good; if argon is detected, sealant or solder is used to seal it at the corresponding position. The slider 14 in this embodiment is a lead block, and the external sealing member 11 is a plug screw.

[0048] It should be noted that, in other embodiments, Figure 5-Figure 6 As shown, the gas flow channel 8 of an inflatable accelerometer core can be a straight-through gas flow channel, which is connected to the gas flow path 7 and is connected to the outside through the inflation nozzle 10. The remaining structure is the same as that of the present embodiment. The difference between the inflation method of the core and the inflation method of the present embodiment is:

[0049] Step 1: Point the inflation nozzle 10 of the inflatable accelerometer core vertically downward.

[0050] Step 4, stop inflation, use the plug screw and the sealing ring 13 to block the exhaust hole 9, use solder to seal the inflation nozzle 10, complete the inflation of the inflatable accelerometer core, and perform subsequent operations. The specific process of the subsequent operations is the same as that of this embodiment.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An inflatable accelerometer movement, comprising a pendulum assembly (1) and two torquers (2) symmetrically arranged on both sides of the pendulum assembly (1); the pendulum assembly (1) comprises a pendulum piece (3) and two moving coil assemblies (4); the pendulum piece (3) comprises an outer ring (31) and a swing tongue (32) coaxially arranged inside the outer ring (31); the inner circle radius of the outer ring (31) is greater than the outer arc radius of the swing tongue (32); an arcuate flow channel is formed between the outer ring (31) and the swing tongue (32); a plurality of bosses are arranged on two opposite side surfaces of the outer ring (31); a first flow channel is formed between adjacent bosses, and each first flow channel is connected to the arcuate flow channel; the two moving coil assemblies (4) are symmetrically connected on two opposite side surfaces of the swing tongue (32); each torquer (2) comprises a yoke iron (2 0), a magnetic steel (21) arranged on the inner bottom surface of the yoke (20), and a magnetic pole piece (22) arranged on the end surface of the magnetic steel (21) and located in the corresponding moving coil assembly (4), a first annular cavity is formed between the yoke (20), the magnetic steel (21) and the magnetic pole piece (22); the open end surfaces of the two yokes (20) are respectively abutted against the corresponding bosses, and the open end side walls of the two yokes (20) are sealed and connected through an annular belly band (6), the first annular cavity of one torquer (2), the arc-shaped flow channel of the swing plate (3), all the first flow channels on the two opposite sides, and the first annular cavity of the other torquer (2) are connected to form a gas flow path (7); an annular notch is opened in the circumferential direction on the side wall of one of the yokes (20) away from the swing plate (3); it is characterized in that: The end of the yoke (20) provided with an annular notch away from the swing plate (3) is provided with a gas flow channel (8), and an air filling nozzle (10) is provided on the end surface; the end of the other yoke (20) away from the swing plate (3) is provided with an exhaust hole (9) communicating with the gas flow channel (7); The gas flow channel (8) is a straight-through gas flow channel, which is in communication with the gas flow path (7) and is in communication with the outside through the inflation nozzle (10); Alternatively, the gas flow channel (8) comprises an L-shaped gas flow channel (17), a sliding chamber (12) and a connecting flow channel (19); the L-shaped gas flow channel (17) is in communication with the gas flow path (7), and the connecting flow channel (19) is in communication with the outside through an inflation nozzle (10); a sliding block (14) with a channel (15) is provided in the sliding chamber (12), and a first opening and a second opening are provided on the inner wall surface, which are respectively in communication with the L-shaped gas flow channel (17) and the connecting flow channel (19); A gap is provided between the slider (14) and the inner wall of the sliding chamber (12) to form a chamber flow channel; the slider (14) is used to slide in the sliding chamber (12), and the slider (14) has a first position and a second position, the first position being that the slider (14) blocks the first opening and the second opening, and the second opening is connected to the chamber flow channel through the channel (15); the second position is that the slider (14) blocks the second opening and maintains a gap with the first opening, and the second opening is connected to the chamber flow channel through the channel (15).

2. The inflatable accelerometer movement according to claim 1, characterized in that: A sealing gasket (16) is provided on the side wall of the sliding block (14) close to the first opening; The first position is that the sealing gasket (16) blocks the first opening, the slider (14) blocks the second opening, and the second opening is connected to the chamber flow channel through the channel (15); The second position is that the slider (14) blocks the second opening, the sealing gasket (16) maintains a gap with the first opening, and the second opening is connected to the chamber flow channel through the channel (15).

3. The inflatable accelerometer movement according to claim 1 or 2, characterized in that: The center dividing plane of the exhaust hole (9) and the axial center dividing plane of the inflation nozzle (10) are symmetrical with respect to the axis of the swing plate (3); The exhaust hole (9) is a stepped hole whose diameter gradually increases from the inside to the outside.

4. A method for inflating an inflatable accelerometer core according to claim 1, characterized in that: The following steps are involved: Step 1, vertically point the inflation nozzle (10) of the inflatable accelerometer core of claim 1 downward; Step 2, starting to charge the gas flow channel (8) with an initial pressure of 0.1 to 0.3 atmospheric pressure of the outside world through the charging nozzle (10), wherein the density of the inert gas is greater than the density of air, and gradually increasing the pressure of the inert gas during the charging process until the pressure of the inert gas is 1.2 to 1.8 atmospheric pressure of the outside world, and each pressure increase value is 1 to 2 times the initial pressure; at the same time, using an inert gas mass spectrometer to detect the gas escaping from the exhaust hole (9); Step 3, determine whether the inert gas mass spectrometer detects inert gas, if yes, execute step 4, otherwise continue to inflate and re-execute step 3; Step 4, stop inflation, seal the exhaust hole (9) and the inflation nozzle (10), and complete the inflation of the inflatable accelerometer core.

5. The method for inflating an inflatable accelerometer core according to claim 4, characterized in that: Step 1 is as follows: The inflation nozzle (10) of the inflatable accelerometer core of claim 1 is opened vertically downward, and the slider (14) is in the first position, and the inflatable accelerometer core is rotated clockwise until the angle between the axial mid-plane connecting the flow channel (19) and the ground horizontal line is 30° to 60°, and the slider (14) is in the second position, so that the L-shaped gas flow channel (17), the chamber flow channel, the channel (15), and the second opening are connected.

6. The method for inflating an inflatable accelerometer core according to claim 5, characterized in that: Step 4 is as follows: The inflatable accelerometer core is rotated counterclockwise until the angle between the axial mid-plane connecting the flow channel (19) and the ground horizontal line is 30° to 60°, the slider (14) is located at the first position, the exhaust hole (9) and the inflation nozzle (10) are blocked, and the inflation of the inflatable accelerometer core is completed.

7. The method for inflating an inflatable accelerometer core according to claim 6, characterized in that: The step 4 also includes: using an inert gas mass spectrometer to detect the exhaust hole (9), the inflation nozzle (10) and the position of the circumferential abdominal band (6) respectively. If no inert gas is detected, the air tightness is good; if inert gas is detected, the corresponding position is blocked.

8. The method for inflating an inflatable accelerometer core according to claim 7, characterized in that: The inert gas is argon, and the inert gas mass spectrometer is an argon mass spectrometer; The sliding block (14) is a lead block.

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