CN115648097A - Tool for adjusting mounting precision of accelerometer and accelerometer - Google Patents
Tool for adjusting mounting precision of accelerometer and accelerometer Download PDFInfo
- Publication number
- CN115648097A CN115648097A CN202211490480.5A CN202211490480A CN115648097A CN 115648097 A CN115648097 A CN 115648097A CN 202211490480 A CN202211490480 A CN 202211490480A CN 115648097 A CN115648097 A CN 115648097A
- Authority
- CN
- China
- Prior art keywords
- accelerometer
- connecting plate
- tool
- base
- adjusting
- 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.)
- Pending
Links
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a tool for adjusting the installation precision of an accelerometer and the accelerometer, wherein the tool comprises a base, a plurality of supporting pieces and a connecting plate for installing the accelerometer; a tool groove is reserved on the base; the bottom of the connecting plate is arranged in the tool groove in a hanging manner, and a gap is reserved between the circumferential direction of the connecting plate and the tool groove; each supporting piece is distributed along the circumferential direction of the connecting plate, one end of each supporting piece is fixedly connected with the connecting plate, and the other end of each supporting piece is fixedly connected with the base through a threaded structure; each support piece is arranged obliquely relative to the reference plane, and the connecting plate is correspondingly inclined by rotating the support pieces through the threaded structures, so that the mounting angle of the accelerometer is adjusted. The accelerometer adopts the tool, and is arranged on the connecting plate of the tool.
Description
Technical Field
The invention relates to a tool for adjusting the installation accuracy of an accelerometer and the accelerometer, and belongs to the technical field of measuring equipment.
Background
The accelerometer is an inertial sensor capable of measuring the acceleration force of an object, and has important application value in numerous fields such as spaceflight, guidance, navigation and the like. With the rapid development of silicon micromachining technology (MEMS), various devices based on the MEMS technology have been developed. The MEMS accelerometer adopts a micro-processing technology, has the advantages of small volume, light weight, low energy consumption, high stability, low price and the like, and is widely applied in the fields of automotive electronics, satellite navigation, virtual reality, vibration monitoring and the like.
Accelerometers can be classified into single-axis, two-axis, and three-axis accelerometers according to the measurement direction. The sensitive elements in the MEMS biaxial accelerometer are designed in an orthogonal mode, so that the spatial acceleration of a measured object can be decomposed on two axes X, Y, and the detection of two sensitive axial accelerations is realized. However, due to the influence of part processing and installation precision, a certain installation error angle always exists between the actual sensitive axis of the MEMS biaxial accelerometer and the reference plane. Due to the existence of the installation error angle, the acceleration sensed by the sensitive axis of the MEMS double-axis accelerometer is influenced by other non-sensitive axes in the measuring process, so that the accelerometer always generates output with corresponding magnitude in the zero position, namely the offset value of the accelerometer. Therefore, the mounting error of the MEMS biaxial accelerometer needs to be compensated accordingly to improve the measurement accuracy.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a tool for adjusting the installation accuracy of an accelerometer and the accelerometer, which can compensate the installation error angle of the accelerometer so as to improve the measurement accuracy of the accelerometer.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
in one aspect, the invention provides a tool for adjusting the installation accuracy of an accelerometer, which comprises a base, a plurality of supporting pieces and a connecting plate for installing the accelerometer;
a tool groove is reserved on the base;
the bottom of the connecting plate is arranged in the tool groove in a hanging manner, and a gap is reserved between the circumferential direction of the connecting plate and the tool groove;
each supporting piece is distributed along the circumferential direction of the connecting plate, one end of each supporting piece is fixedly connected with the connecting plate, and the other end of each supporting piece is fixedly connected with the base through a threaded structure;
each support piece is arranged obliquely relative to the reference plane, and the connecting plate is correspondingly inclined by rotating the support pieces through the threaded structures, so that the mounting angle of the accelerometer is adjusted.
In combination with the first aspect, further, the base includes a base plate and a side plate, the lower surface of the base plate is attached to the reference surface, the side plate is disposed around the base plate to form the tool groove, and the support member is connected to the side plate of the base through a threaded structure.
In combination with the first aspect, further, the connecting plate is a rectangular plate, at least one supporting piece is correspondingly arranged on each edge of the rectangular plate, the supporting pieces connected to two opposite edges are arranged diagonally, and the supporting pieces connected to two adjacent edges are far away from each other.
With reference to the first aspect, further, a plurality of mounting holes are formed in the connecting plate, and are used for mounting the accelerometer.
With reference to the first aspect, further, the support member includes a screw rod having a rotating portion at one end.
With reference to the first aspect, further, an end of the supporting member connected to the base is higher than an end connected to the connecting plate.
With reference to the first aspect, further, the support member is inclined by a predetermined angle for every rotation of the support member by the screw structure.
With reference to the first aspect, further, the value range of the predetermined angle is: 0.01-3 degrees.
In a second aspect, the invention provides an accelerometer, which comprises an accelerometer body and the tool for adjusting the mounting precision of the accelerometer in any one of the first aspect, wherein the accelerometer body is mounted on the connecting plate.
With reference to the second aspect, further, the accelerometer body comprises a MEMS biaxial accelerometer.
Compared with the prior art, the invention can at least produce the following beneficial effects:
in locating the frock groove with the connecting plate is unsettled, a plurality of support piece through circumference setting realize the relatively fixed of connecting plate and base, support piece passes through the helicitic texture with the base and is connected, through helicitic texture rotation support piece, can drive the connecting plate and take place the slope, thereby realize the installation angular adjustment of accelerometer, support piece not only is used for realizing being connected of connecting plate and base, and can realize connecting plate inclination's adjustment, whole frock simple structure, easily installation and realization, and be applicable to the accelerometer of any model, be used for compensating the installation error angle of accelerometer, the measurement accuracy of accelerometer has been improved.
Drawings
FIG. 1 is a top view of a tool for adjusting the mounting accuracy of an accelerometer according to an embodiment of the invention;
FIG. 2 is a side view of a tool for adjusting the mounting accuracy of an accelerometer according to an embodiment of the invention;
in the figure: 1. a base; 1a, a substrate; 1b, side plates; 2. a connecting plate; 3. and a support member.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The first embodiment is as follows:
the embodiment of the invention provides a tool for adjusting the installation accuracy of an accelerometer, and the tool comprises a base 1, a support 3 and a connecting plate 2, and is shown in fig. 1 and 2. A tool groove with an upward opening is reserved on the base 1. The bottom of the connecting plate 2 is arranged in the tool groove in a suspending mode, and a gap is reserved between the circumferential direction of the connecting plate 2 and the tool groove so as to reserve enough adjusting space for subsequent inclination angle adjustment of the connecting plate 2. The supporting member 3 is provided in plurality, and the plurality of supporting members 3 are circumferentially distributed along the connecting plate 2. One end of the support piece 3 is fixedly connected with the connecting plate 2, and the other end of the support piece is fixedly connected with the base 1 through a threaded structure. It should be particularly noted that each of the supporting members 3 is obliquely arranged relative to the reference plane, that is, the angle a in fig. 2 is not equal to zero, and the supporting members 3 are rotated by a threaded structure to correspondingly incline the connecting plate 2 fixedly connected with the supporting members 3, thereby achieving the adjustment of the installation angle of the accelerometer. Therefore, in the embodiment of the present invention, the support 3 not only realizes the connection between the connection plate 2 and the base 1, but also can realize the adjustment of the inclination angle of the connection plate 2.
During the use, will base 1 is arranged in on the reference surface, makes base 1's lower surface keep laminating with the reference surface as far as possible, and the accelerometer is installed on connecting plate 2, rotates the adjustment that one or more support piece 3 can realize connecting plate 2 inclination through helicitic texture to compensate the installation error angle of accelerometer, whole frock simple structure, easily installation and realization, and be applicable to the accelerometer of any model, help improving the measurement accuracy of accelerometer.
In some embodiments of the present invention, the base 1 may include a bottom substrate 1a and a side plate 1b disposed around the bottom substrate 1a, and the bottom substrate 1a and the side plate 1b may be disposed as an integral structure or may be separate structures. The side plate 1b serves as an end connection for the support 3, which should be provided with an internal thread formation matching the external thread formation on the support 3. The adjacent side plates 1b can be connected end to form a tool groove with closed bottom and circumferential direction; the adjacent side plates 1b can be arranged at intervals to form a circumferential hollowed-out tool groove. In use, the base lower surface should be conformed to the datum plane as much as possible to maintain stability and minimize adjustment of the installation error angle of the accelerometer.
As an embodiment of the present invention, the connecting plate 2 may be a rectangular plate, each side of the rectangular plate is correspondingly provided with at least one supporting member 3, the supporting members 3 connected to two opposite sides are diagonally arranged, and the supporting members 3 connected to two adjacent sides are far away from each other. Referring to fig. 1, the supporting members 3 arranged diagonally can make the connecting plate 2 more stable, and furthermore, when adjusting the installation error angle, the diagonal arrangement structure can adjust the inclination angle of the connecting plate 2 in the front-back direction and the left-right direction by adjusting only one of the four supporting members 3. As an alternative to this embodiment, the supporting members 3 connected to two opposite sides of the connecting plate 2 may also be symmetrically disposed, and when the inclination angle of the connecting plate 2 needs to be adjusted, the two opposite supporting members 3 may be adjusted at the same time.
In order to facilitate the installation of the accelerometer, a plurality of mounting holes are formed in the connecting plate 2 and used for mounting the accelerometer.
As an embodiment of the present invention, the supporting member 3 may be a screw rod with a rotating portion at one end, a threaded section of the screw rod may penetrate through the side plate 1b of the base 1 and be connected to the connecting plate 2, the screw rod may be welded and fixed to the connecting plate 2, or may be screwed and fixed to the connecting plate 2 through a threaded structure, in order to prevent the screw rod from withdrawing from the connecting plate 2 when the screw rod rotates, the threaded section on the screw rod may be divided into two sections, and the two sections may adopt opposite thread spiral directions.
In some embodiments of the present invention, the end of the support 3 connected to the base 1 is higher than the end connected to the connecting plate 2, and each time the support 3 rotates one circle in the tool slot, the connecting plate 2 tilts downward by a predetermined angle, and the predetermined angle may be: 0.01-3 degrees, the precision of each adjustment can be correspondingly changed by changing the thread pitch of the thread structure, and the smaller the thread pitch is, the higher the precision of the inclination angle of the connecting plate 2 which can be adjusted each time is. It will be appreciated that the direction of inclination of the support 3 and the pitch of the thread formation can be selected according to practical requirements.
Example two:
the embodiment of the invention provides an accelerometer, which comprises an accelerometer body and the tool for adjusting the installation precision of the accelerometer, wherein the accelerometer body is installed on the connecting plate 2. The accelerometer body comprises a MEMS biaxial accelerometer.
When the output data of the MEMS biaxial accelerometer is acquired, the debugging board of the MEMS biaxial accelerometer is a PCB board which comprises a data acquisition system and a specific clamp.
When the debugging device is installed, the base 1 is placed on a reference surface, and the debugging plate is fixed on the connecting plate 2 through bolts. The MEMS biaxial accelerometer is installed in a specific fixture, a power supply interface of a debugging board is connected to a positive output port and a negative output port of a direct-current stabilized power supply respectively, finally a signal acquisition line of a data acquisition system is connected to a serial port communication server, and the MEMS biaxial accelerometer is powered on after installation is completed, so that output data of the MEMS biaxial accelerometer can be acquired in real time. The support pieces 3 at different positions are respectively subjected to fine adjustment according to the output value of the MEMS biaxial accelerometer at the zero position, the output value of each axis of the MEMS biaxial accelerometer at the zero position, namely the offset value of the accelerometer, is close to 0 as much as possible through adjustment, the installation error is compensated as much as possible, and the adjustment of the installation precision of the MEMS biaxial accelerometer is realized.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The tool for adjusting the mounting precision of the accelerometer is characterized by comprising a base, a plurality of supporting pieces and a connecting plate for mounting the accelerometer;
a tool groove is reserved on the base;
the bottom of the connecting plate is arranged in the tool groove in a hanging manner, and a gap is reserved between the circumferential direction of the connecting plate and the tool groove;
each supporting piece is distributed along the circumferential direction of the connecting plate, one end of each supporting piece is fixedly connected with the connecting plate, and the other end of each supporting piece is fixedly connected with the base through a threaded structure;
each support piece is arranged obliquely relative to the reference plane, and the connecting plate is correspondingly inclined by rotating the support pieces through the threaded structures, so that the mounting angle of the accelerometer is adjusted.
2. The tooling for adjusting the mounting accuracy of the accelerometer according to claim 1, wherein the base comprises a base plate and a side plate, the lower surface of the base plate is attached to the datum plane, the side plate is arranged around the base plate to form the tooling groove, and the support member is connected to the side plate of the base through a threaded structure.
3. The tool for adjusting the mounting accuracy of the accelerometer according to claim 1, wherein the connecting plate is a rectangular plate, each edge of the rectangular plate is provided with at least one supporting member, the supporting members connected to two opposite edges are arranged diagonally, and the supporting members connected to two adjacent edges are far away from each other.
4. The tooling for adjusting the mounting accuracy of the accelerometer according to claim 1, wherein the connecting plate is provided with a plurality of mounting holes for mounting the accelerometer.
5. The tooling for adjusting the mounting accuracy of an accelerometer of claim 1, wherein the support comprises a threaded rod with a rotating portion at one end.
6. The tool for adjusting the mounting accuracy of the accelerometer according to claim 1, wherein one end of the support connected to the base is higher than one end of the support connected to the connecting plate.
7. The tooling for adjusting the mounting accuracy of an accelerometer according to claim 1, wherein the support member is inclined by a predetermined angle for each rotation of the support member through the threaded structure.
8. The tool for adjusting the mounting accuracy of the accelerometer of claim 7, wherein the predetermined angle has a range of values: 0.01-3 degrees.
9. An accelerometer, characterized by, including accelerometer body and the frock for adjusting accelerometer installation accuracy of any of claims 1 to 8, the accelerometer body is installed on the connecting plate.
10. The accelerometer of claim 9, wherein the accelerometer body comprises a MEMS dual axis accelerometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490480.5A CN115648097A (en) | 2022-11-25 | 2022-11-25 | Tool for adjusting mounting precision of accelerometer and accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490480.5A CN115648097A (en) | 2022-11-25 | 2022-11-25 | Tool for adjusting mounting precision of accelerometer and accelerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115648097A true CN115648097A (en) | 2023-01-31 |
Family
ID=85020254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211490480.5A Pending CN115648097A (en) | 2022-11-25 | 2022-11-25 | Tool for adjusting mounting precision of accelerometer and accelerometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115648097A (en) |
-
2022
- 2022-11-25 CN CN202211490480.5A patent/CN115648097A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7325322B2 (en) | Electric park brake inclinometer | |
| CN104792323B (en) | Dynamic Water level and attitude angle computational methods | |
| KR20210110361A (en) | Sensor components, inertial measurement components and mobile devices | |
| CN103591936B (en) | Method for measuring slant angle | |
| CN110726420A (en) | Strapdown inertial navigation attitude adjusting device and adjusting method thereof | |
| FI124378B (en) | Motion sensor housing | |
| CN115648097A (en) | Tool for adjusting mounting precision of accelerometer and accelerometer | |
| WO2022067594A1 (en) | Five-axis linkage numerical control machine tool rotation axis position error detection method and device | |
| US8733700B2 (en) | Method for installing an inertial reference unit in an aircraft, and aircraft equipped in this way | |
| CN216695032U (en) | Zero calibration and positioning device for single-vane attack angle sensor | |
| CN215374002U (en) | Electronic compass calibrating device | |
| CN214200079U (en) | Inclination angle detection device | |
| CN111457920B (en) | Rotation angle measuring method based on accelerometer | |
| CN115202135A (en) | Dual-camera three-dimensional heavy cradle head system and structure | |
| CN108871649B (en) | Method for establishing reference coordinate system | |
| JP2012112755A (en) | Tilt detection unit and tilt detection system equipped with tilt detection unit | |
| CN2165416Y (en) | Pendulum directional clinograph | |
| CN2149603Y (en) | Sensing Device for measuring inclination | |
| CN218822408U (en) | High-speed spinning inertial navigation measuring device | |
| CN215707176U (en) | Novel helicopter horizon instrument based on optical fiber IMU | |
| JP2007178138A (en) | Method for correcting output of angular speed sensor unit | |
| JP2003139536A (en) | Declinometer and azimuth measuring method | |
| CN111999776B (en) | Gravity center detection device | |
| JPH07270159A (en) | Inclination measuring apparatus for vertical rotating shaft | |
| CN211527425U (en) | Accurate high-efficient 3D frock of maring of triaxial top composite erection error |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |