CN205691137U - Vibration centrifugal composite test device for inertia type instrument calibration - Google Patents
Vibration centrifugal composite test device for inertia type instrument calibration Download PDFInfo
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- CN205691137U CN205691137U CN201620535987.1U CN201620535987U CN205691137U CN 205691137 U CN205691137 U CN 205691137U CN 201620535987 U CN201620535987 U CN 201620535987U CN 205691137 U CN205691137 U CN 205691137U
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- centrifuge
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Abstract
The utility model discloses a kind of vibration centrifugal composite test device for inertia type instrument calibration, including precision centrifuge, centrifuge rotating disk, locating platform, excitation system, line slide rail, exciting base and piece fixture, centrifuge rotating disk is fixing with the main shaft of precision centrifuge to be connected, locating platform is fixing with centrifuge rotating disk to be connected, exciting base is fixedly mounted on locating platform, the fixing end of excitation system is fixing with exciting base to be connected, the table top end of excitation system is fixing with piece fixture to be connected, the underrun line slide rail of piece fixture is removable with exciting base to be connected.This utility model arranges actuating vibration table at the end of centrifuge, the weight and volume of excitation system is the least, excitation principle is simple, and easily realize Precision Machining and precision is debug, on the one hand compensate for the deficiency that existing similar device precision is low, on the other hand by using displacement amplifying mechanism to extend the vibration frequency band of piezoelectric exciting system, to cover tens hertz of vibration frequency range to several KHz.
Description
Technical field
This utility model relates to inertia metrology and measurement field, particularly relates to a kind of vibration centrifugal for inertia type instrument calibration
Composite test device.
Background technology
Inertial technology occupies very important in fields such as Aeronautics and Astronautics, navigation, military affairs, resource detection and geophysicses
Status, thus become one of technical field of giving priority to countries in the world.The precision of inertia type instrument directly determines inertial guidance
Precision, be one of the important performance indexes weighing inertial technology level.But due to design, manufacture and the limit of the technology such as experiment
System, there is the biggest difficulty in the simple precision improving instrument itself.Therefore, under existing process conditions, by test calibration etc.
Method, takes to revise, indemnifying measure, improves the precision index of inertia type instrument, is that the outer inertia device of Present Domestic, instrument produce and grind
The technological approaches that mechanism processed uses jointly.
Precision centrifuge is the inertia type instrument calibration detection apparatus of a kind of development present main flow earlier.This device main
Function is to provide high accuracy and the constant acceleration input value of high stability for the calibration of inertia type instrument, however in view of guided missile,
Aircraft etc. also include answering of acceleration of vibration, noise and temperature etc. at the overload environment of flight course experience such as launching and reenter
Cooperation use, calibrates the inertia type instrument parameter obtained and can not portray the impact of combinational environment completely under single overload environment.Therefore
More reasonably way should be in calibration and the detection carrying out inertia type instrument under inertia type instrument true environment.
China in last century late nineteen eighties begin to the development of precision centrifuge, the most typically Harbin industry is big
Learn the JML-3 type precision centrifuge and General Engineering Research Inst., China Engineering Physics Inst. developed at national great scientific instrument
The 10-6 magnitude precision centrifuge developed under equipment development special project support, but both can only provide linear overloading acceleration, no
Can be used for inertia type instrument under combinational environment precision calibration detection.Multiple at the vibration centrifugal for inertia type instrument metrology and measurement
Close assay device development aspect.
Utility model patent " the combined acceleration output device of a kind of standard " (Patent publication No: CN104019830 A)
A kind of combined acceleration output device using electromagnetic vibration generator system to be combined with precision centrifuge is proposed, but due to electric vibration table weight
Amount is relatively big, on the one hand affects the performance of centrifuge, and on the other hand the precision of overload and acceleration of vibration is the most relatively low.Utility model is special
Profit " linearly coupled and overload combined test method and device thereof " (Authorization Notice No.: CN 102506897) uses disc centrifuge
Vibration-overload composite test device is formed with high speed rotating platform；
Utility model patent " test board for testing overload composite environment " (application publication number: CN 103091118 A) uses
Crossing and install two straight-line motion mechanisms on microscope carrier additional, on straight-line motion mechanism, each frame mode installing servo-actuated, creates
The new method of the simulated object various dynamic motion situations in true environment in the lab.But these utility models are created
On the one hand can not simulate the dither of Live Flying environment, on the other hand volume and the complexity of excitation system are relatively big, no
It is beneficial to control processing and the control accuracy of device.
Utility model patent " multi-parameter compound environmental tester " (Authorization Notice No.: CN 201777393 U), practicality
New patent " overload combinational environment test experimental bed " (application publication number CN 103091118 A), utility model patent are " a kind of
Big overload and linearly coupled composite test equipment " (application publication number: CN103148869 A) be all the dress about combined environment testing
Put, but these assay devices are concerned with reliability, functional test, and cannot be used for inertia type instrument test and measuring field.
Utility model content
The purpose of this utility model is that provides a kind of shaking for inertia type instrument calibration to solve the problems referred to above
The method of testing of dynamic centrifugal compound assay device.
This utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of for inertia type instrument calibration vibration centrifugal composite test device, including precision centrifuge, centrifuge rotating disk,
Locating platform, excitation system, line slide rail, exciting base and piece fixture, described centrifuge rotating disk and described precision centrifuge
Main shaft fixing connect, described locating platform is fixed with described centrifuge rotating disk and is connected, and described exciting base is fixedly mounted on institute
Stating on locating platform, the fixing end of described excitation system is fixing with described exciting base to be connected, the table top end of described excitation system
Fixing with described piece fixture and be connected, line slide rail described in the underrun of described piece fixture may move with described exciting base
Connect.
Specifically, to include that piezoelectric ceramics and displacement amplifying mechanism, described piezoelectric ceramics are arranged on described for described excitation system
In displacement amplifying mechanism, and with described displacement amplifying mechanism interference fit, the direction of vibration of described piezoelectric ceramics is perpendicular to described
The overloading acceleration direction that precision centrifuge provides, the direction of vibration of described excitation system is parallel to described overloading acceleration side
To.
Preferably, described displacement amplifying mechanism is rhombus displacement amplifying mechanism, ellipse displacement amplifying mechanism.
Specifically, described locating platform is arranged on the outer of described centrifuge rotating disk, the downside of described locating platform with
Described centrifuge rotating disk is fixing to be connected, and the upper side of described locating platform is provided with positioning runner, the downside of described exciting base
Face is provided with the sliding rib in the location adaptive with described positioning runner.
Specifically, described line slide rail and the direction of motion of described positioning runner are all along the radius side of described centrifuge rotating disk
To setting.
Preferably, the quantity of described excitation system is multiple, and multiple described excitation systems are arranged on described in parallel or series
Between piece fixture and described exciting base.
Preferably, the quantity of described piezoelectric ceramics is multiple, and multiple described piezoelectric ceramics are arranged on described in parallel or series
The inside of displacement amplifying mechanism.
By the parallel connection of multiple excitation systems or multiple piezoelectric ceramics is set at displacement amplifying mechanism internal parallel, can increase sharp
The load capacity of vibrating system, and bigger vibration force can be provided；
By the series connection of multiple excitation systems or multiple piezoelectric ceramics is set at displacement amplifying mechanism internal series-connection, can increase sharp
The vibration amplitude of vibrating system.
Further, described assay device also includes control system and power amplifier, the signal output of described control system
End is connected with the signal input part of described power amplifier, and the signal output part of described power amplifier is by cable and described pressure
Electroceramics connects.
The beneficial effects of the utility model are:
This utility model arranges sharp for the vibration centrifugal composite test device of inertia type instrument calibration at the end of centrifuge
Shake platform, and the weight and volume of excitation system is the least, and excitation principle is simple, and easily realizes Precision Machining and precision is debug, and one
Aspect compensate for the deficiency that existing similar device precision is low, on the other hand by using displacement amplifying mechanism to extend piezoelectric exciting
The vibration frequency band of system, can cover tens hertz of vibration frequency range to several KHz.
Accompanying drawing explanation
Fig. 1 is that the stereochemical structure for the vibration centrifugal composite test device of inertia type instrument calibration described in the utility model is shown
It is intended to；
Fig. 2 is that the partial structurtes for the vibration centrifugal composite test device of inertia type instrument calibration described in the utility model are shown
It is intended to；
Fig. 3 is the structural representation of excitation system described in the utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, Figure 2 and Figure 3, a kind of vibration centrifugal composite testing for inertia type instrument 11 calibration of this utility model
Device, including precision centrifuge 2, centrifuge rotating disk 1, locating platform 3, excitation system, line slide rail 6, exciting base 7 and test specimen
Fixture 8, centrifuge rotating disk 1 is fixing with the main shaft of precision centrifuge 2 to be connected, and locating platform 3 is fixing with centrifuge rotating disk 1 to be connected,
Exciting base 7 is fixedly mounted on locating platform 3, and the fixing end of excitation system is fixing with exciting base 7 to be connected, excitation system
Table top end is fixing with piece fixture 8 to be connected, and the underrun line slide rail 6 of piece fixture 8 is removable with exciting base 7 to be connected.
As it is shown on figure 3, excitation system includes piezoelectric ceramics 5 and displacement amplifying mechanism 4, piezoelectric ceramics 5 is arranged on displacement and puts
In great institutions 4, and with displacement amplifying mechanism 4 interference fit, the direction of vibration of piezoelectric ceramics 5 is perpendicular to precision centrifuge 2 to be provided
Overloading acceleration direction, the direction of vibration of excitation system is parallel to overloading acceleration direction, and displacement amplifying mechanism 4 is rhombus position
Move enlarger 4, ellipse displacement amplifying mechanism 4 or three-D displacement enlarger 4.
As in figure 2 it is shown, locating platform 3 is arranged on the outer of centrifuge rotating disk 1, the downside of locating platform 3 and centrifuge
Rotating disk 1 is fixing to be connected, and the upper side of locating platform 3 is provided with positioning runner 9, and the downside of exciting base 7 is provided with and positions
The sliding rib in the location of chute 9 adaptation, line slide rail 6 all sets along the radial direction of centrifuge rotating disk 1 with the direction of motion of positioning runner 9
Put.
In order to increase the load capacity of the excitation system of piezoelectric ceramics 5 and displacement amplifying mechanism 4 composition, many can be used
Piezoelectric ceramics 5 is installed on the inside of displacement amplifying mechanism 4, forms parallel-connection structure, it is also possible to be that multiple excitation system composes in parallel
The excitation system of greater vibration thrust；
In order to increase the vibration amplitude of the excitation system of piezoelectric ceramics 5 and displacement amplifying mechanism 4 composition, can use multiple
Root piezoelectric ceramics 5 is installed on the inside of displacement amplifying mechanism 4 in series thus forms the exciting system of greater vibration amplitude
System, it is also possible to be the excitation system that multiple excitation systems are composed in series greater vibration amplitude.
Additionally, assay device also includes control system and power amplifier, the signal output part of control system and power
The signal input part of amplifier connects, and the signal output part of power amplifier is connected with piezoelectric ceramics 5 by cable, power amplification
The function of device is the output signal of control system to be amplified rear drive piezoelectric ceramics 5 produce expanding-contracting action.
Centrifuge rotating disk 1 can also be replaced with centrifuge pivoted arm, the first end of pivoted arm is fixed with centrifuge rotating shaft simultaneously
Connecting, locating platform 3 is arranged on the second end of centrifuge pivoted arm.
Connected mode between above-mentioned all parts all can be with bolts, is connected firmly and readily accessible.
Being provided with screwed hole 10 at the two ends of displacement amplifying mechanism, displacement amplifying mechanism is by bolt and exciting base 3
Connect with piece fixture 8.
Method of testing based on above-mentioned a kind of vibration centrifugal composite test device for inertia type instrument 11 calibration, including
Following step:
(1) inertia type instrument 11 to be measured is installed to piece fixture 8；
(2) according to testing requirement, the input parameter of excitation system is set, and at the most static shape of excitation system and centrifuge
Under state, obtain output voltage or the electric current of accelerometer to be measured；
(3) excitation system is closed, and centrifuge starts, by stable for centrifuge little in accelerometer input acceleration value to be measured
Rotating speed when 1g, and obtain output voltage or the electric current of accelerometer to be measured；
(4) based on step (2) and the measurement data of step (3), being centrifuged when excitation system is in vibration balancing point is drawn
Machine static radius；
(5) excitation system and centrifuge are opened simultaneously, carry out inertia apparatus under the frequency of vibration of the rotating speed set and setting
The calibration test of table 11.
If less demanding to the calibration accuracy of inertia type instrument 11, accurate gauge rod etc. can be used in advance directly to measure essence
The static radius of close centrifuge 2, for computation overload acceleration.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every according to skill of the present utility model
The technology deformation that art scheme is made, within each falling within protection domain of the present utility model.
Claims (8)
1. one kind for inertia type instrument calibration vibration centrifugal composite test device, it is characterised in that: include precision centrifuge, from
Scheming rotating disk, locating platform, excitation system, line slide rail, exciting base and piece fixture, described centrifuge rotating disk and described essence
The main shaft of close centrifuge is fixing to be connected, and described locating platform is fixing with described centrifuge rotating disk to be connected, and described exciting base is fixed
Being arranged on described locating platform, the fixing end of described excitation system is fixing with described exciting base to be connected, described excitation system
Table top end and described piece fixture fixing is connected, at the bottom of line slide rail described in the underrun of described piece fixture and described exciting
Seat is removable to be connected.
Vibration centrifugal composite test device for inertia type instrument calibration the most according to claim 1, it is characterised in that: institute
State excitation system and include that piezoelectric ceramics and displacement amplifying mechanism, described piezoelectric ceramics are arranged in described displacement amplifying mechanism, and
With described displacement amplifying mechanism interference fit, the direction of vibration of described piezoelectric ceramics is perpendicular to the mistake that described precision centrifuge provides
Carrying acceleration direction, the direction of vibration of described excitation system is parallel to described overloading acceleration direction.
Vibration centrifugal composite test device for inertia type instrument calibration the most according to claim 2, it is characterised in that: institute
Stating displacement amplifying mechanism is rhombus displacement amplifying mechanism, ellipse displacement amplifying mechanism or three-D displacement enlarger.
Vibration centrifugal composite test device for inertia type instrument calibration the most according to claim 1, it is characterised in that: institute
Stating locating platform and be arranged on the outer of described centrifuge rotating disk, the downside of described locating platform is fixed with described centrifuge rotating disk
Connecting, the upper side of described locating platform is provided with positioning runner, and the downside of described exciting base is provided with and described location
The sliding rib in location that chute is adaptive.
Vibration centrifugal composite test device for inertia type instrument calibration the most according to claim 4, it is characterised in that: institute
State the line slide rail direction of motion with described positioning runner all along the radial direction setting of described centrifuge rotating disk.
Vibration centrifugal composite test device for inertia type instrument calibration the most according to claim 1, it is characterised in that: institute
The quantity stating excitation system is multiple, and multiple described excitation systems are arranged on described piece fixture in parallel or series and swash with described
Shake between base.
Vibration centrifugal composite test device for inertia type instrument calibration the most according to claim 2, it is characterised in that: institute
The quantity stating piezoelectric ceramics is multiple, and multiple described piezoelectric ceramics are arranged on the interior of described displacement amplifying mechanism in parallel or series
Portion.
Vibration centrifugal composite test device for inertia type instrument calibration the most according to claim 2, it is characterised in that: also
Signal input part including control system and power amplifier, the signal output part of described control system and described power amplifier
Connecting, the signal output part of described power amplifier is connected with described piezoelectric ceramics by cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535987.1U CN205691137U (en) | 2016-06-02 | 2016-06-02 | Vibration centrifugal composite test device for inertia type instrument calibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535987.1U CN205691137U (en) | 2016-06-02 | 2016-06-02 | Vibration centrifugal composite test device for inertia type instrument calibration |
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| CN205691137U true CN205691137U (en) | 2016-11-16 |
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| CN201620535987.1U Expired - Fee Related CN205691137U (en) | 2016-06-02 | 2016-06-02 | Vibration centrifugal composite test device for inertia type instrument calibration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973269A (en) * | 2016-06-02 | 2016-09-28 | 中国工程物理研究院总体工程研究所 | Vibration centrifuging composite experiment device for inertia instrument calibration and testing method |
| DE102017115667A1 (en) * | 2017-07-12 | 2019-01-17 | Tdk Electronics Ag | Method for measuring a behavior of a MEMS device |
-
2016
- 2016-06-02 CN CN201620535987.1U patent/CN205691137U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973269A (en) * | 2016-06-02 | 2016-09-28 | 中国工程物理研究院总体工程研究所 | Vibration centrifuging composite experiment device for inertia instrument calibration and testing method |
| DE102017115667A1 (en) * | 2017-07-12 | 2019-01-17 | Tdk Electronics Ag | Method for measuring a behavior of a MEMS device |
| US11137253B2 (en) | 2017-07-12 | 2021-10-05 | Tdk Corporation | Method for measuring a behavior of a MEMS device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20190602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |