CN104597289B - The method of testing that the axle of acceleration transducer three is tested simultaneously - Google Patents
The method of testing that the axle of acceleration transducer three is tested simultaneously Download PDFInfo
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- CN104597289B CN104597289B CN201410797068.7A CN201410797068A CN104597289B CN 104597289 B CN104597289 B CN 104597289B CN 201410797068 A CN201410797068 A CN 201410797068A CN 104597289 B CN104597289 B CN 104597289B
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Abstract
The present invention provides the method for testing that a kind of axle of acceleration transducer three is tested simultaneously, including：Acceleration transducer is fitted on fixed jig, wherein, fixed jig includes three inclined-planes, and each inclined-plane is 35.264 degree with the angle of horizontal plane；Make X-axis, Y-axis, the Z axis of acceleration transducer parallel with three inclined-planes of fixed jig respectively, and the angle of X-axis, Y-axis, Z axis and the horizontal plane of acceleration transducer is all 35.264 degree, testing acceleration sensor.Using the present invention, current acceleration transducer calibration test device structure complexity, the problem that testing cost is high and the testing time is long are can solve the problem that.
Description
Technical field
The present invention relates to acceleration transducer technical field of measurement and test, more specifically, it is related to a kind of acceleration transducer three
Axis calibration method of testing.
Background technology
In most of electronic products (such as：Mobile phone, panel computer, IPAD etc.) in be provided with the sensing of acceleration function
Device, wherein, X-axis, Y-axis and Z axis are provided with acceleration transducer., it is necessary to it in acceleration transducer production process
Carry out detection calibration, it is ensured that properties of product meet design requirement.
At present, the test of acceleration transducer or calibration method are：To acceleration transducer each axle individually test or
Person calibrates, i.e., tested or calibrated when the main shaft (X, Y, Z ,-X ,-Y ,-Z) of required detection calibration is with horizontal plane.It is right
The method that each axle is individually tested spends the time more long, and tool structure is complicated, if to realize the test of six axles or calibrate,
Need upset six times.
That is, existing correcting mode, is mostly that acceleration transducer is entered using six axle automated test devices
Row detection calibration, is rotated six times by equipment and realizes six axle detection calibrations, and test equipment complex structure, equipment cost is high, and
And the easy winding of data transfer wire rod is lost in test process, causes difficult wiring, the testing time is more long.
The content of the invention
In view of the above problems, it is an object of the invention to provide the test side that a kind of axle of acceleration transducer three is tested simultaneously
Method is long to solve the problems, such as complicated existing calibration test acceleration transducer device structure, high cost and testing time.
The present invention provides the method for testing that a kind of axle of acceleration transducer three is tested simultaneously, including：By acceleration transducer
It is fitted on fixed jig, wherein, fixed jig includes three inclined-planes, and each inclined-plane is with the angle of horizontal plane
35.264 degree；
Make X-axis, Y-axis, the Z axis of acceleration transducer parallel with three inclined-planes of fixed jig respectively, and make acceleration sensing
The angle of the X-axis of device, Y-axis, the axle of Z axis three and horizontal plane is all 35.264 degree；
Testing acceleration sensor.
Furthermore it is preferred that scheme be, during testing acceleration sensor, the X-axis of testing acceleration sensor, Y
The acceleration of gravity of axle, Z axis, respectively：
X=X '/sin θ, Y=Y '/sin θ, Z=Z '/sin θ
Wherein, X is the acceleration of gravity of the X-axis of acceleration transducer；
X ' is the vector project of the acceleration of gravity in vertical direction of the X-axis of acceleration transducer；
Y is the acceleration of gravity of the Y-axis of acceleration transducer；
Y ' is the vector project of the acceleration of gravity in vertical direction of the Y-axis of acceleration transducer；
Z is the acceleration of gravity of the Z axis of acceleration transducer；
Z ' is the vector project of the acceleration of gravity in vertical direction of the Z axis of acceleration transducer；
X-axis, Y-axis, the axle of Z axis three acceleration of gravity in the vertical direction vector project it is identical；
θ is 35.264 degree of the angle of X-axis, Y-axis, Z axis and the horizontal plane of acceleration transducer.
Furthermore it is preferred that scheme be, the acceleration of gravity of X-axis, Y-axis and Z axis according to acceleration transducer, obtain accelerate
Spend the acceleration of gravity of sensor；
According to the acceleration of gravity and normal acceleration of gravity of acquired acceleration transducer, acceleration transducer is determined
Whether it is qualified products.
Furthermore it is preferred that scheme be, in acceleration of gravity and the standard weight of the acceleration transducer according to acquired in test
Power acceleration, during determining whether acceleration transducer is qualified products,
If the value of the acceleration of gravity of the acceleration transducer that test is obtained is in the range of normal acceleration of gravity, this
Acceleration transducer is qualified products.
Knowable to technical scheme above, the method for testing that the axle of acceleration transducer of the invention three is tested simultaneously is utilized
Gravity is vector sine, using fixed jig steady acceleration sensor, and meet three axles of acceleration transducer with
Horizontal plane calculates the acceleration of gravity of three axles of acceleration transducer into 35.264 degree, further obtains acceleration transducer
Acceleration of gravity, this method of testing equipment is simple, with low cost, and testing tool need not be carried out repeatedly in test process
Upset, it is only necessary to rotate 180 degree, the testing time is short.
In order to realize above-mentioned and related purpose, one or more aspects of the invention include will be explained in below and
The feature particularly pointed out in claim.Following explanation and accompanying drawing is described in detail some illustrative aspects of the invention.
However, what is indicated in terms of these is only some modes in the various modes for can be used principle of the invention.Additionally, of the invention
It is intended to include all these aspects and their equivalent.
Brief description of the drawings
By reference to the explanation below in conjunction with accompanying drawing and the content of claims, and with to it is of the invention more comprehensively
Understand, other purposes of the invention and result will be more apparent and should be readily appreciated that.In the accompanying drawings：
Fig. 1 is the method for testing schematic flow sheet tested simultaneously according to the axle of acceleration transducer three of the embodiment of the present invention；
Fig. 2 is the axle decomposition texture schematic diagram of velocity sensor three according to the embodiment of the present invention；
The state that Fig. 3-1 and Fig. 3-2 is respectively fixed jig steady acceleration sensor according to embodiments of the present invention is shown
It is intended to；
Fig. 4 is the test detailed process schematic diagram tested simultaneously according to the axle of acceleration transducer three of the embodiment of the present invention.
Reference therein includes：Fixed jig 1, acceleration transducer 2.
Identical label indicates similar or corresponding feature or function in all of the figs.
Specific embodiment
In the following description, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiments, explain
Many details are stated.It may be evident, however, that these embodiments can also be realized in the case of without these details.
The device structure used for the method for the existing detection acceleration transducer of foregoing proposition is complicated, high cost, and
And the problem that test process is cumbersome, the testing time is more long, the present invention is vector sine using gravity, is passed by acceleration
Three axle vertical components of sensor calculate three acceleration of axle, further to acceleration transducer detection calibration, this survey
Method for testing simplifies test equipment, cost-effective, it is not necessary to which upset overturns 6 times to testing tool, it is only necessary to rotate 180 degree
Test once can be just completed, the testing time is reduced.
Specific embodiment of the invention is described in detail below with reference to accompanying drawing.
For the method for testing that the axle of acceleration transducer three for illustrating present invention offer is tested simultaneously, Fig. 1 shows basis
The method of testing flow that the axle of acceleration transducer three of the embodiment of the present invention is tested simultaneously.
As shown in figure 1, the method for testing that the axle of acceleration transducer three that the present invention is provided is tested includes simultaneously：
S110：Acceleration transducer is fitted on fixed jig, wherein, fixed jig includes three inclined-planes, and often
Individual inclined-plane is 35.264 degree with the angle of horizontal plane；
S120：Make X-axis, Y-axis, the Z axis of acceleration transducer parallel with three inclined-planes of fixed jig respectively, pass acceleration
The angle of the X-axis of sensor, Y-axis, the axle of Z axis three and horizontal plane is all 35.264 degree；
S130：Testing acceleration sensor.
, wherein it is desired to explanation, fixed jig is in calibration, the method for testing that the axle of acceleration transducer three is tested simultaneously
There are two effects, one：Fixed testee, that is, fixed acceleration transducer so that acceleration transducer was being tested
Stable state is in journey, so as to obtain more accurate calibration test result.As long as acceleration transducer is fitted in into fixation
On tool, it is possible to reach the purpose of steady acceleration sensor；Acceleration transducer is fitted in fixation and controls in suitable angle
Completely can be fitted on tool testee by pressure cylinder by tool, it is necessary to fit completely, so that testee
In stable state.
Secondly：During detection calibration, fixed jig needs to meet to be tested and calibration object X/Y/Z or-X/-
The axles of Y/-Z tri- are identical with horizontal plane angle to be each about 35.264 degree.Fixed jig is in order to ensure to meet test and calibrate the X/ of object
The axles of Y/Z or-X/-Y/-Z three are identical with horizontal plane angle to be each about 35.264 degree, has done following design.
Fixed jig includes three inclined-planes, and each inclined-plane is 35.264 degree with the angle of horizontal plane.To accelerating
Degree sensor is when carrying out detection calibration, finds suitable angle so that acceleration transducer fits together with fixed jig, and
So that X-axis, Y-axis, Z axis on acceleration transducer are parallel with an inclined-plane on fixed jig respectively, due to each inclined-plane with
The angle of horizontal plane is 35.264 degree, then the angle of X-axis, Y-axis, Z axis and horizontal plane on acceleration transducer is also
35.264 degree, thus fixed jig this design just meet test and calibration object the axle of X/Y/Z or-X/-Y/-Z three with
Horizontal plane angle is identical to be each about 35.264 degree.
Fig. 2 shows the axle decomposition texture of velocity sensor three according to embodiments of the present invention, as shown in Fig. 2 velocity pick-up
The axle of device three (X-axis, Y-axis, Z axis) is while during detection calibration, first have to ensure the axle of acceleration transducer three (X-axis, Y-axis, Z axis)
Three axle in the vertical direction vector projects are identical, and also to ensure the axle of acceleration transducer three (X-axis, Y-axis, Z axis) and level
The angle in face is identical, wherein, in the embodiment shown in Figure 2, the axle (X of acceleration transducer three can be obtained according to sine
Axle, Y-axis, Z axis) be with the angle of horizontal plane：θ 1=θ 2=θ 3=θ=35.264 degree.
It should be noted that the profile of fixed jig will be according to normal tested product (i.e.：Acceleration transducer) size come
Processing, the installation of such fixed jig can just be placed according to the position for being test for acceleration transducer placement, with
Reach fixed jig to be fitted completely with acceleration transducer, play a part of steady acceleration sensor.
Fig. 3-1 and Fig. 3-2 respectively illustrates the shape of fixed jig steady acceleration sensor according to embodiments of the present invention
State.As shown in figure 3-1, acceleration transducer fits together with fixed jig, and the X-axis of acceleration transducer, Y-axis and Z
Axle is identical with horizontal plane angle, in the embodiment shown in Fig. 3-1, the one of inclined-plane of fixed jig with the horizontal θ angles,
This inclined-plane is parallel with the Y-axis of acceleration transducer, then the Y-axis of acceleration transducer is also with the horizontal θ angles.In addition, solid
The another two inclined-plane of tool is determined also with the horizontal θ angles, and X-axis and Z axis of the two inclined-planes respectively with acceleration transducer are parallel,
The X-axis and Z axis of so acceleration transducer are also into θ angle with horizontal plane.
Fig. 3-2 is the state of fixed jig steady acceleration sensor after Fig. 3-1 rotation 180 degrees, and fixed jig is inverted and is put
Put ,-the X/-Y/-Z of acceleration transducer is identical with horizontal plane angle；Embodiment as shown in figure 3-2, fixed jig is therein
One inclined-plane with the horizontal θ angles, this inclined-plane and acceleration transducer-Y-axis is parallel, then acceleration transducer-Y-axis
Also with the horizontal θ angles.In addition, the another two inclined-plane of fixed jig is also with the horizontal θ angles, the two inclined-planes respectively with acceleration
Degree sensor-X-axis is parallel with-Z axis, then acceleration transducer-X-axis and-Z axis it is also into θ angle with horizontal plane.
When fixed jig steady acceleration sensor, first and X-axis, Y-axis and the Z axis and water of acceleration transducer are met
Then plane included angle can carry out detection calibration into 35.264 degree to acceleration transducer.
Fig. 4 shows the test detailed process that the axle of acceleration transducer three according to embodiments of the present invention is tested simultaneously, such as
Shown in Fig. 4, the detection calibration process of acceleration transducer is as follows：
S410：X-axis, Y-axis and Z axis according to acceleration transducer horizontal plane acceleration of gravity, acceleration transducer
X-axis, Y-axis and Z axis and horizontal plane angle into 35.264 degree, and sine, obtain the X of acceleration transducer to be tested
The acceleration of gravity of axle, Y-axis and Z axis；
S420：The acceleration of gravity of X-axis, Y-axis and Z axis according to the acceleration transducer for obtaining, obtains acceleration sensing
The acceleration of gravity of device；
S430：The acceleration of gravity and normal acceleration of gravity of the acceleration transducer obtained according to test, it is determined that accelerating
Whether degree sensor is qualified products.
In the acceleration of gravity and normal acceleration of gravity of the acceleration transducer obtained according to test, determine that acceleration is passed
During whether sensor is qualified products, if the value of the acceleration of gravity of the acceleration transducer that test is obtained is in the weight of standard
In the range of power acceleration, then this acceleration transducer is qualified products.
That is, in the detailed process of above-mentioned test, due to acceleration transducer to be tested and its test equipment
Connection, when the good acceleration transducer to be tested of fixed jig stabilization, and make three axles of acceleration transducer with the horizontal
After 35.264 degree, test equipment starts testing acceleration sensor, shows the X of acceleration transducer in test equipment first
The acceleration of gravity of axle, Y-axis and Z axis in horizontal plane；Then X-axis according to acceleration transducer to be tested, Y-axis and Z axis exist
The component of the acceleration of gravity of horizontal plane, the X-axis of acceleration transducer to be tested, Y-axis and Z axis and horizontal plane angle into
35.264 degree, and sine, so as to obtain the acceleration of gravity of the X-axis of acceleration transducer to be tested, Y-axis and Z axis.
During the acceleration of gravity of testing acceleration sensor, the X-axis of acceleration transducer, Y-axis, the weight of Z axis
Power acceleration, respectively：
X=X '/sin θ, Y=Y '/sin θ, Z=Z '/sin θ
Wherein, X is the acceleration of gravity of the X-axis of acceleration transducer；
X ' is the vector project of the acceleration of gravity in vertical direction of the X-axis of acceleration transducer；It is in test equipment
The known quantity of display；
Y is the acceleration of gravity of the Y-axis of acceleration transducer；
Y ' is the vector project of the acceleration of gravity in vertical direction of the Y-axis of acceleration transducer, is aobvious in test equipment
The known quantity shown；Z is the acceleration of gravity of the Z axis of acceleration transducer；
Z ' is the vector project of the acceleration of gravity in vertical direction of the Z axis of acceleration transducer, is aobvious in test equipment
The known quantity shown；
θ is 35.264 degree of the angle of X-axis, Y-axis, Z axis and the horizontal plane of acceleration transducer.
In the present invention, it is vector using gravity, and three axles calibrated are simultaneously identical with the angle of horizontal plane, that is, exist
Vertical direction component is identical, in calibration test, the axle of acceleration transducer three is read in vertical direction component data, by above-mentioned
The conversion of formula draws the acceleration transducer value for being actually subjected to test or calibrate.
That is, the acceleration of gravity of the X-axis, Y-axis and Z axis according to the acceleration transducer to be tested for obtaining is obtained
The acceleration of gravity of this acceleration transducer.
It is compared with the acceleration of gravity of standard according to the acceleration of gravity of acceleration transducer that test is obtained, if surveying
Try obtain acceleration transducer acceleration of gravity value in the range of the acceleration of gravity of standard, then this test acceleration
Degree sensor is qualified products, and properties of product are good；If the value for testing the acceleration of gravity of the acceleration transducer for obtaining does not exist
In the range of the acceleration of gravity of standard, then the acceleration transducer of this test is not qualified products, it is impossible to for other products
In.
The test side that the axle of acceleration transducer three that can be seen that present invention offer by above-mentioned implementation method is tested simultaneously
Method, by fixed jig steady acceleration sensor so that three axles of acceleration transducer are not required to the horizontal 35.264 degree
Six times rotated by equipment and realize that six axles are tested, three axles are tested using the method for the present invention simultaneously, it is only necessary to by fixed jig
Rotation 180 degree, then other three axle is tested simultaneously, the method that the present invention is provided can either reduce the test equipment of acceleration transducer
Cost, also reduce the testing time.
Describe to be surveyed according to the axis calibration of acceleration transducer proposed by the present invention three in an illustrative manner above with reference to accompanying drawing
Method for testing.It will be understood by those skilled in the art, however, that the axis calibration of acceleration transducer three proposed for the invention described above
Method of testing, can also make various improvement on the basis of present invention is not departed from.Therefore, protection scope of the present invention should
Determine when by the content of appending claims.
Claims (1)
1. the method for testing that a kind of axle of acceleration transducer three is tested simultaneously, including：
Acceleration transducer is fitted on fixed jig, wherein, the fixed jig includes three inclined-planes, and each inclined-plane
35.264 degree are with the angle of horizontal plane；
Make three inclined-planes of X-axis, Y-axis, the Z axis of the acceleration transducer respectively with the fixed jig parallel, and make described
The angle of the X-axis of acceleration transducer, Y-axis, the axle of Z axis three and horizontal plane is all 35.264 degree；
The acceleration transducer is tested, wherein, X-axis, Y-axis, the acceleration of gravity of Z axis of the acceleration transducer are tested,
Respectively：
X=X '/sin θ, Y=Y '/sin θ, Z=Z '/sin θ
Wherein, X is the acceleration of gravity of the X-axis of the acceleration transducer；
X ' is the vector project of the acceleration of gravity in vertical direction of the X-axis of the acceleration transducer；
Y is the acceleration of gravity of the Y-axis of the acceleration transducer；
Y ' is the vector project of the acceleration of gravity in vertical direction of the Y-axis of the acceleration transducer；
Z is the acceleration of gravity of the Z axis of the acceleration transducer；
Z ' is the vector project of the acceleration of gravity in vertical direction of the Z axis of the acceleration transducer；
X-axis, Y-axis, the axle of Z axis three acceleration of gravity in the vertical direction vector project it is identical；
θ is 35.264 degree of the angle of X-axis, Y-axis, Z axis and the horizontal plane of the acceleration transducer；
The acceleration of gravity of X-axis, Y-axis and Z axis according to the acceleration transducer, obtains the gravity of the acceleration transducer
Acceleration；
According to the acceleration of gravity and normal acceleration of gravity of acquired acceleration transducer, the acceleration transducer is determined
Whether it is qualified products；
If testing the value of the acceleration of gravity of the acceleration transducer for obtaining in the range of normal acceleration of gravity, this accelerates
Degree sensor is qualified products.
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| CN108152535A (en) * | 2017-11-14 | 2018-06-12 | 歌尔科技有限公司 | A kind of accelerometer calibration method and device |
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| CN113092818B (en) * | 2021-03-17 | 2022-10-18 | 歌尔股份有限公司 | Acceleration calibration method and device of wearable equipment |
| CN113075423A (en) * | 2021-05-13 | 2021-07-06 | 珠海市精实测控技术有限公司 | Device for testing performance consistency of product built-in triaxial acceleration sensor |
| CN113075424B (en) * | 2021-05-13 | 2023-12-26 | 珠海精实测控技术股份有限公司 | Method for testing performance consistency of built-in triaxial acceleration sensor of product |
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