CN207163468U - A kind of micro- electrical measurement with vibration-proof structure - Google Patents
A kind of micro- electrical measurement with vibration-proof structure Download PDFInfo
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- CN207163468U CN207163468U CN201721157182.9U CN201721157182U CN207163468U CN 207163468 U CN207163468 U CN 207163468U CN 201721157182 U CN201721157182 U CN 201721157182U CN 207163468 U CN207163468 U CN 207163468U
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- vibration
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- fixed mounts
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Abstract
The utility model discloses a kind of micro- electrical measurement with vibration-proof structure, including：IMU fixed mounts, IMU soft boards are provided with the inside of the IMU fixed mounts, detecting element is pasted with IMU soft boards；At least one side of the IMU fixed mounts is provided with damping assembly, and the damping assembly includes the balancing weight being directly connected to the IMU fixed mounts, and the one side of the balancing weight is connected with vibration damping cotton by stator.Detecting element individually can out be carried out vibration isolation by the utility model, sensor is not influenceed by extraneous acceleration；And balancing weight uses heat conductive silica gel material, high molecular polymer cost is low, easy processing, and shock-absorbing properties are good；Simple in construction, system conformance is high.
Description
Technical field
The utility model belongs to aerial navigation technical field, is related to a kind of micro- electrical measurement with vibration-proof structure.
Background technology
Three axis accelerometer is a kind of sensor for being used to measure object space acceleration, and it can accurately reflect thing comprehensively
The motion change of body, but be affected by vibration larger the shortcomings that the sensor.It is at present by sensor and master control compared with multi-scheme
Plate connects firmly together.Unmanned plane is in flight because propeller, rotor and the intrinsic manufacture deviation of other rotary parts cause
Out-of-balance force and produce vibration, vibration by master control borad is delivered to three axis accelerometer so that the posture and data of aircraft are inclined
From true value.
In order to eliminate interference of the vibration to sensor, the accurate acceleration of motion for measuring object, so as to provide exactly
The posture and parameter of aircraft flight to sensor, it is necessary to carry out vibration isolation and filtering process.
The content of the invention
The purpose of this utility model is to provide a kind of micro- electrical measurement with vibration-proof structure, and micro- electrical measurement is used
In measurement UAV Attitude or acceleration, vibration-proof structure is set to the sensor vibration isolation in balancing weight, so as to avoid vibrating
Influence the measurement accuracy of sensor.
The utility model the technical scheme adopted is that
A kind of micro- electrical measurement with vibration-proof structure, including：
IMU fixed mounts, IMU soft boards are provided with the inside of the IMU fixed mounts, detecting element is pasted with IMU soft boards；
At least one side of the IMU fixed mounts is provided with damping assembly, and the damping assembly includes fixing with the IMU
The balancing weight that frame is directly connected to, the one side of the balancing weight are connected with vibration damping cotton by stator.
In a preferred embodiment of the present utility model, the detecting element includes 3 axis accelerometers and angular speed passes
Sensor, it is respectively used to gather the acceleration and angular speed of aircraft.
In a preferred embodiment of the present utility model, include the PET sheet of the protection vibration damping cotton, the PET sheet
It is fixed on by gum on vibration damping cotton.
In a preferred embodiment of the present utility model, the balancing weight uses heat conductive silica gel material.
In a preferred embodiment of the present utility model, the damping assembly includes two groups, including is respectively arranged at institute
State the upper damping assembly of the both sides of IMU fixed mounts and lower damping assembly.
In a preferred embodiment of the present utility model, vibration damping cotton and the lower vibration damping group in the upper damping assembly
Vibration damping cotton arrangement mode in part is different.
By using above technical scheme, the beneficial effects of the utility model are：
Detecting element individually can out be carried out vibration isolation by the utility model, make shadow of the sensor not by extraneous acceleration
Ring；And balancing weight uses heat conductive silica gel material, high molecular polymer cost is low, easy processing, and shock-absorbing properties are good；It is simple in construction, be
Uniformity of uniting is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is explosive view of the present utility model.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Vibration isolation has two classes, first, isolation plant equipment reaches the vibration of ground by bearing, to reduce the transmission of power, claims
For active vibration isolation；Another kind is that the vibration for preventing ground reaches the precision equipment or instrument that need to be protected by bearing, to subtract
The transmission of small motion, referred to as passive vibration isolation.
This technology uses passive vibration isolation, and the energy of vibration is consumed by increasing the damping of system.Much research shows, when
When excited frequency is more than two times of the radical sign of vibrating isolation system, vibrating isolation system can be good at consumption vibration, so as to reduce vibration to passing
Feel its influence.
Therefore when the excited frequency of unmanned plane be more than high molecular polymer and counter weight group into damping system resonance frequency
Its vibration isolation gearratio will be less than one so as to reach vibration isolating effect during two times of the radical sign of rate.
Referring to Figures 1 and 2, a kind of micro- electrical measurement with vibration-proof structure, including：IMU fixed mounts 5, the IMU consolidate
The inner side for determining frame 5 is provided with IMU soft boards, and detecting element is pasted with IMU soft boards；At least one side of the IMU fixed mounts 5 is set
Damping assembly is equipped with, the damping assembly includes the balancing weight being directly connected to the IMU fixed mounts, the one side of the balancing weight
Vibration damping cotton is connected with by stator.Wherein described detecting element includes 3 axis accelerometers and angular rate sensor, is respectively used to
Gather the acceleration and angular speed of aircraft.
Also include the PET sheet for protecting the vibration damping cotton, the PET sheet is fixed on vibration damping cotton by gum.The counterweight
Block uses heat conductive silica gel material.
Specifically, in order to more preferably realize effectiveness in vibration suppression, the damping assembly includes two groups, including is respectively arranged at described
The upper damping assembly of the both sides of IMU fixed mounts and lower damping assembly.
It is described as shown, the vibration damping cotton in the upper damping assembly and the vibration damping cotton arrangement mode in the lower damping assembly
Difference, X-axis is regarded as into the orientation of upper vibration damping cotton 2, then the arrangement mode for descending vibration damping cotton 8 is Y-axis, and both are in longitudinal direction
Projection be mutually perpendicular to.
1 is upper PET sheet, and it is fixed on upper foam by gum.Its effect is in order to which the elastic force of foam is uniform
It is applied on shell, and protects foam without damage in technical process.
2 be upper vibration damping cotton, and it connects upper PET and upper stator by gum.Compressive hardness：It is when compressing 25%
0.39N/CM squares, be 0.6N/CM squares when compressing 50%.
3 be upper stator, and it connects upper vibration damping cotton 2 and upper balancing weight 4 by gum, and its effect is in order to by foam
Elastic force is uniformly applied on balancing weight, and protects foam without damage in technical process.Because foam is more than balancing weight, such as
The not upper stator of fruit, foam will be unable to be fixed on balancing weight.
4 be upper balancing weight, and 5 be IMU fixed mounts；6 be lower balancing weight；Upper balancing weight 4 and lower balancing weight 6 are consolidated by screw
It is fixed.It is heat conductive silica gel in balancing weight, its effect is to make being dispersed in around sensor for even heat caused by heating element heater
It has the temperature of a relative constancy, so as to avoid temperature drift.The thermal conductivity factor of heat conductive silica gel is between 1.2~1.6.
3 axis accelerometers and angular rate sensor are mounted by SMD techniques on IMU soft boards, it is collection aircraft that it, which is acted on,
Acceleration and angular speed.So as to calculate the posture of the current spatial of aircraft.
7 be lower stator, and it is connected by gum and lower balancing weight 6 and lower vibration damping cotton 8.
8 be lower vibration damping cotton, and it is connected by gum and lower stator 7 and lower PET sheet 9.
9 be lower PET sheet, and it is connected by gum and lower vibration damping cotton 8.
Detecting element individually can out be carried out vibration isolation by the utility model, make shadow of the sensor not by extraneous acceleration
Ring；And balancing weight uses heat conductive silica gel material, high molecular polymer cost is low, easy processing, and shock-absorbing properties are good；It is simple in construction, be
Uniformity of uniting is high.
Claims (6)
- A kind of 1. micro- electrical measurement with vibration-proof structure, it is characterised in that including：IMU fixed mounts, IMU soft boards are provided with the inside of the IMU fixed mounts, detecting element is pasted with IMU soft boards；At least one side of the IMU fixed mounts is provided with damping assembly, and the damping assembly includes straight with the IMU fixed mounts The balancing weight connect in succession, the one side of the balancing weight are connected with vibration damping cotton by stator.
- A kind of 2. micro- electrical measurement with vibration-proof structure according to claim 1, it is characterised in that the member that tests the speed Part includes 3 axis accelerometers and angular rate sensor, is respectively used to gather the acceleration and angular speed of aircraft.
- 3. a kind of micro- electrical measurement with vibration-proof structure according to claim 1, it is characterised in that also include protection The PET sheet of the vibration damping cotton, the PET sheet are fixed on vibration damping cotton by gum.
- A kind of 4. micro- electrical measurement with vibration-proof structure according to claim 1, it is characterised in that the balancing weight Using heat conductive silica gel material.
- 5. a kind of micro- electrical measurement with vibration-proof structure according to one of claim 1-4, it is characterised in that described Damping assembly includes two groups, including is respectively arranged at the upper damping assembly of the both sides of the IMU fixed mounts and lower damping assembly.
- A kind of 6. micro- electrical measurement with vibration-proof structure according to claim 5, it is characterised in that the upper vibration damping Vibration damping cotton in component is different from the vibration damping cotton arrangement mode in the lower damping assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721157182.9U CN207163468U (en) | 2017-09-11 | 2017-09-11 | A kind of micro- electrical measurement with vibration-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721157182.9U CN207163468U (en) | 2017-09-11 | 2017-09-11 | A kind of micro- electrical measurement with vibration-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207163468U true CN207163468U (en) | 2018-03-30 |
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ID=61720950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721157182.9U Active CN207163468U (en) | 2017-09-11 | 2017-09-11 | A kind of micro- electrical measurement with vibration-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207163468U (en) |
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2017
- 2017-09-11 CN CN201721157182.9U patent/CN207163468U/en active Active
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| CP01 | Change in the name or title of a patent holder |
Address after: Room 504, Block E, HUanpu science and Technology Industrial Park, 211 tianguba Road, high tech Zone, Xi'an City, Shaanxi Province, 710000 Patentee after: Tudou Data Technology Group Co.,Ltd. Address before: Room 504, Block E, HUanpu science and Technology Industrial Park, 211 tianguba Road, high tech Zone, Xi'an City, Shaanxi Province, 710000 Patentee before: SHAANXI TUDOU DATA TECHNOLOGY Co.,Ltd. |
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