CN102589406A - Calibration test device and calibration test method for dummy chest displacement sensor - Google Patents
Calibration test device and calibration test method for dummy chest displacement sensor Download PDFInfo
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- CN102589406A CN102589406A CN2012100406618A CN201210040661A CN102589406A CN 102589406 A CN102589406 A CN 102589406A CN 2012100406618 A CN2012100406618 A CN 2012100406618A CN 201210040661 A CN201210040661 A CN 201210040661A CN 102589406 A CN102589406 A CN 102589406A
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- angle seat
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 70
- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 210000000038 chest Anatomy 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 17
- 210000000481 breast Anatomy 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 3
- 210000002683 foot Anatomy 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 238000009863 impact test Methods 0.000 description 4
- 210000001562 sternum Anatomy 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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Abstract
The invention relates to a calibration test device and a calibration test method for a dummy chest displacement sensor. The calibration test device comprises a sensor angle seat, a sliding block angle seat and a platform, wherein the sensor angle seat is used for mounting a sensor; the sliding block angle seat is used for mounting a back plate for calibrating the sensor; the platform is used for mounting the sensor angle seat and the sliding block angle seat; the sensor angle seat is arranged at one side on the platform; the sliding block angle seat is arranged on the other side of the platform; and the sensor angle seat and the sliding block angle seat can move along a straight line between the two angle seats.
Description
Technical field
The present invention relates to automobile safety collision experimental technique field, be specifically related to a kind of dummy's chest displacement transducer rating test device and rating test method thereof.
Background technology
Automotive safety is paid much attention to by countries in the world, and all with the examination index of the vehicle impact testing in the passive security as automotive safety, and the collision dummy provides the important source of injury to personnel situation.So the crash data at each position of dummy all enjoys attention.The dummy that present most of testing laboratory mainly uses has dummies such as HIII-50th, HIII-5th, HIII-95th and ES-2.HIII-50th and HIII-5th dummy mainly are used in 100% head-on crash and 40% positive biasing is bumped, and these dummies' breast compressions amount is one of important examination index, so the data accuracy of raising dummy chest displacement transducer is extremely important.U.S. SAE association released J2517 2006 editions " 2006 " in 2006, had recommended a new method, and three rank return the multiple spot standard law.Promptly measure the voltage of chest difference displacement, find the coefficient of a cubic polynomial, thereby obtain a sensitivity cubic polynomial, the breast compressions displacement when calculating the dummy and collide with it with least square method.Because the chest displacement transducer is employed to be angular transducer, the relation of displacement and voltage is a nonlinear relationship.The linear sensitivity calculations chest of traditional use displacement is coarse.According to the principle of work that the chest displacement transducer is demarcated, the polynomial expression that obtains with least square method comes displacement calculating more near actual displacement.Traditional scaling method is to demarcate on one's body the dummy, and 2006 editions requirements of SAEJ2517 are taken out demarcation to sensor so that obtain the accuracy of displacement.
Because the chest displacement transducer is employed to be angular transducer, the relation of displacement and voltage is a nonlinear relationship.The linear sensitivity calculations chest of traditional use displacement is coarse.According to the principle of work that the chest displacement transducer is demarcated, the polynomial expression that obtains with least square method comes displacement calculating more near actual displacement, and classic method is to demarcate on one's body the dummy; Because after dummy's chest is finished test at every turn; Breastbone all can have variation in various degree, and these variations are carried out timing signal to the chest displacement transducer on one's body the dummy with regard to making at every turn; The benchmark of demarcating can change; Thereby use least square method to find the coefficient of a cubic polynomial to change, the breast compressions displacement that finally obtains just has certain error, and then influences the evaluation score and the star examination of vehicle.
Summary of the invention
The objective of the invention is to solve the instability and the inexactness of chest displacement transducer timing signal on one's body the dummy; Thereby use three rank to return the multiple spot standard law; Draw a comparatively accurate sensor sensitivity cubic polynomial, for impact test draw one comparatively accurately the breast compressions amount reliable theoretical foundation is provided.
Specifically, the object of the present invention is to provide a kind of dummy's chest displacement transducer rating test device and rating test method thereof, comprise the platform and the foot pad of sensor angle seat, slide block angle seat, established angle seat.This device is that dummy's chest displacement transducer is taken out from the dummy on one's body; Cooperate self-control standard gauge block (requirement according to SAEJ2517 is made) to demarcate; Draw two groups of data of displacement and voltage; Find the coefficient of a cubic polynomial again with least square method, thereby obtain a cubic polynomial, calculate the breast compressions displacement with it.
Concrete technical scheme is following:
A kind of dummy's chest displacement transducer rating test device comprises sensor angle seat, slide block angle seat and platform; Said sensor angle seat is used for sensor installation; Said slide block angle seat is used to install the backboard of calibration sensor, and said platform is used for sensor installation angle seat and slide block angle seat, and said sensor angle seat is installed in a side on the platform; Said slide block angle seat is installed in opposite side on the platform, and said sensor angle seat and slide block angle seat can move along the straight line between two jiaos of seats.
Further, also comprise foot pad, said foot pad is 4, is separately positioned on four jiaos under the platform.
Further; Said sensor angle seat is installed on the platform through hexagon socket head cap screw; It is according to the difference of demarcating dummy's chest displacement transducer type; According to the requirement of SAEJ2517, can move along the rectilinear direction of sensor angle seat and slide block angle seat, to be used to demarcate the dummy of HIII-50th and HIII-95th.
Further, said slide block angle seat, can move along the rectilinear direction of sensor angle seat and slide block angle seat, to be used to demarcate the dummy of HIII-50th and HIII-95th according to the requirement of SAEJ2517 according to the difference of demarcating dummy's chest displacement transducer type.
Further, also comprise pad, said pad is 3mm, and it is arranged between sensor angle seat and the sensor, is used for device is defined as the dummy who demarcates HIII-5th.
Further, the said backboard that is used for calibration sensor is installed in slide block angle seat through hexagon socket head cap screw.
Further, said sensor angle seat is provided with gauge hole, is used for sensor installation, and said slide block angle seat is provided with U type groove, is used to install backboard.
The rating test method of above-mentioned dummy's chest displacement transducer rating test device, adopt following steps:
(1) dummy's chest displacement transducer is taken out from the dummy on one's body, be installed on the rating test device;
(2) the matching standard gauge block begins to demarcate, and draws two groups of data of displacement and voltage;
(3) obtain the coefficient of a cubic polynomial with least square method, thereby obtain a cubic polynomial;
(4) calculate dummy's breast compressions displacement with the cubic polynomial that obtains in the step (3).
Further, step further comprises in (1): sensor is contained on the sensor angle seat of rating test device, uses hexagon socket head cap screw to be installed on the seat of slide block angle the backboard of calibration sensor.
Further, step further comprises in (2): the backboard with calibration sensor is a benchmark, makes the bead on the standard gauge block feeler, draws two groups of data of displacement and voltage, and said standard gauge block is made according to the requirement of SAEJ2517.
In order to practice thrift cost and easy for installation; This device is designed to the device that three kinds of dummies can both use; The slide block angle seat of this device or sensor angle seat can be in the platform upper edge direction straight line of sensor angle seat and slide block angle seat move, be used for demarcating dummy's chest displacement transducer of HIII-50th and HIII-95th respectively; On the seat of sensor angle, during sensor installation, increase the pad of 3mm, just can sensor device that demarcate HIII-50th be changed into the dummy's of demarcation HIII-5th the device of chest displacement transducer.
The present invention is compared with prior art: because after dummy's chest finishes test at every turn; Breastbone all can have variation in various degree, and these variations are carried out timing signal to the chest displacement transducer on one's body the dummy with regard to making at every turn; The benchmark of demarcating can change; Thereby use least square method to find the coefficient of a cubic polynomial to change, the breast compressions displacement that finally obtains just has certain error, and then influences the evaluation score and the star examination of vehicle.Compare with previous scaling method; This device has been stablized the benchmark of calibration sensor; Be installed in the influence that the sensor on the device is not changed by dummy's breastbone can after promptly taking out dummy's health; Use standard gauge block to carry out timing signal, the each variation of the displacement of sensor also is stable, so this device has increased the accuracy that each test use least square method finds the coefficient of a cubic polynomial; And then very little to the influence of each breast compressions displacement, the while has also been improved the stability and the accuracy of this evaluation index of breast compressions amount.Thus, the present invention more is worth reference to the accuracy meaning that improves breast compressions amount evaluation index.
Description of drawings
Fig. 1 installs the structural representation behind the sensor for the present invention
Among the figure:
The backboard of the platform of 1 established angle seat, 2 sensor angle seats, 3 slide unit angle seats, 4 foots pad, 5 sensor installation holes, 6 calibration sensor, 7 sensors, 8 are installed U type groove, 9/10 hexagon socket head cap screw of backboard
Embodiment
Describe the present invention according to accompanying drawing below, it is a kind of preferred embodiment in the numerous embodiments of the present invention.
A kind of test unit of demarcating dummy's chest displacement transducer relates generally to the technical field that automobile safety collision is tested, and comprises the platform and the foot pad of sensor angle seat, slide block angle seat, established angle seat.The slide block angle seat of this device or sensor angle seat can be in the platform upper edge direction straight line of sensor angle seat and slide block angle seat move, be used for demarcating dummy's chest displacement transducer of HIII-50th and HIII-95th respectively; On the seat of sensor angle, during sensor installation, increase the pad of 3mm, just can sensor device that demarcate HIII-50th be changed into the dummy's of demarcation HIII-5th the device of chest displacement transducer.The present invention can solve the instability and the inexactness of chest displacement transducer timing signal on one's body the dummy; Use three rank to return the multiple spot standard law; Draw a comparatively accurate cubic polynomial, for impact test draw one comparatively accurately the breast compressions amount reliable theoretical foundation is provided.
With reference to accompanying drawing 1, a kind of test unit of novel demarcation chest displacement transducer is used for demarcating the dummy's that the automobile safety collision test uses chest displacement transducer.The platform 1, sensor angle seat 2, slide unit angle seat 3 and the foot pad 4 that comprise the established angle seat.
Above-mentioned sensor angle seat 2; Can be according to the difference of demarcating dummy's chest displacement transducer type; Requirement according to SAEJ2517; And the rectilinear direction of seat 2 and slide unit angle seat 3 moves along the sensor angle, and to be used to demarcate the dummy of HIII-50th and HIII-95th, 2 the other threaded holes under the sensor angle seat 2 do not show.
Above-mentioned slide unit angle seat 3; Can be according to the difference of demarcating dummy's chest displacement transducer type; Requirement according to SAEJ2517; And the rectilinear direction of seat 2 and slide unit angle seat 3 moves along the sensor angle, and to be used to demarcate the dummy of HIII-50th and HIII-95th, other 2 threaded holes under the slide unit angle seat 3 do not show.
Above-mentioned test unit is not changing the installation site, only need when sensor installation, add the pad of 3mm, just can convert the device of demarcating HIII-50th to demarcate HIII-5th device.
Sensor 7 is contained on the sensor angle seat 2; Using hexagon socket head cap screws 9 to be installed on the slide unit angle seat 3 backboard of calibration sensor 6, is benchmark with the backboard 6 of calibration sensor, uses the bead of homemade standard gauge block (requirement according to SAEJ2517 is made) feeler 7; Draw two groups of data of displacement and voltage; Find the coefficient of a cubic polynomial again with least square method, thereby obtain a cubic polynomial, calculate the breast compressions displacement with it.
The sensor angle seat of this device or slide block angle seat can root dummy type difference, carry out the adjustment of position, and be applicable to the dummy of HIII-50th, HIII-5th and HIII-95th.Compare with previous scaling method; This device has been stablized the benchmark of calibration sensor; Be installed in the influence that the sensor on the device is not changed by dummy's breastbone can after promptly taking out dummy's health; Use standard gauge block to carry out timing signal, the each variation of the displacement of sensor also is stable, so this device has increased the accuracy that each test use least square method finds the coefficient of a cubic polynomial; And then very little to the influence of each breast compressions displacement, the while has also been improved the stability and the accuracy of this evaluation index of breast compressions amount.This caliberating device can solve the instability and the inexactness of chest displacement transducer timing signal on one's body the dummy; Thereby use three rank to return the multiple spot standard law; Draw a comparatively accurate sensor sensitivity cubic polynomial, for impact test draw one comparatively accurately the breast compressions amount reliable theoretical foundation is provided.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (10)
1. dummy's chest displacement transducer rating test device is characterized in that, comprises sensor angle seat; Slide block angle seat and platform, said sensor angle seat is used for sensor installation, and said slide block angle seat is used to install the backboard of calibration sensor; Said platform is used for sensor installation angle seat and slide block angle seat; Said sensor angle seat is installed in a side on the platform, and said slide block angle seat is installed in opposite side on the platform, and said sensor angle seat and slide block angle seat can move along the straight line between two jiaos of seats.
2. dummy's chest displacement transducer rating test device as claimed in claim 1 is characterized in that also comprise foot pad, said foot pad is 4, is separately positioned on four jiaos under the platform.
3. according to claim 1 or claim 2 dummy's chest displacement transducer rating test device; It is characterized in that; Said sensor angle seat is installed on the platform through hexagon socket head cap screw, and it is according to the difference of demarcating dummy's chest displacement transducer type, according to the requirement of SAEJ2517; Can move along the rectilinear direction of sensor angle seat and slide block angle seat, to be used to demarcate the dummy of HIII-50th and HIII-95th.
4. like each described dummy's chest displacement transducer rating test device among the claim 1-3; It is characterized in that; Said slide block angle seat is according to the difference of demarcating dummy's chest displacement transducer type; According to the requirement of SAEJ2517, can move along the rectilinear direction of sensor angle seat and slide block angle seat, to be used to demarcate the dummy of HIII-50th and HIII-95th.
5. like each described dummy's chest displacement transducer rating test device among the claim 1-4; It is characterized in that, also comprise pad, said pad is 3mm; It is arranged between sensor angle seat and the sensor, is used for device is defined as the dummy who demarcates HIII-5th.
6. like each described dummy's chest displacement transducer rating test device among the claim 1-5, it is characterized in that the said backboard that is used for calibration sensor is installed in slide block angle seat through hexagon socket head cap screw.
7. like each described dummy's chest displacement transducer rating test device among the claim 1-6, it is characterized in that said sensor angle seat is provided with gauge hole, is used for sensor installation, said slide block angle seat is provided with U type groove, is used to install backboard.
8. like the rating test method of the said dummy's chest of claim 1-7 displacement transducer rating test device, it is characterized in that, adopt following steps:
(1) dummy's chest displacement transducer is taken out from the dummy on one's body, be installed on the rating test device;
(2) the matching standard gauge block begins to demarcate, and draws two groups of data of displacement and voltage;
(3) obtain the coefficient of a cubic polynomial with least square method, thereby obtain a cubic polynomial;
(4) calculate dummy's breast compressions displacement with the cubic polynomial that obtains in the step (3).
9. like the rating test method of the said dummy's chest of claim 8 displacement transducer rating test device; It is characterized in that; Step further comprises in (1): sensor is contained on the sensor angle seat of rating test device, uses hexagon socket head cap screw to be installed on the seat of slide block angle the backboard of calibration sensor.
10. like the rating test method of claim 8 or 9 said dummy's chest displacement transducer rating test devices; It is characterized in that; Step further comprises in (2): the backboard with calibration sensor is a benchmark; Make the bead on the standard gauge block feeler, draw two groups of data of displacement and voltage, said standard gauge block is made according to the requirement of SAEJ2517.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210040661.8A CN102589406B (en) | 2012-02-22 | 2012-02-22 | Calibration test device and calibration test method for dummy chest displacement sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210040661.8A CN102589406B (en) | 2012-02-22 | 2012-02-22 | Calibration test device and calibration test method for dummy chest displacement sensor |
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| CN102589406A true CN102589406A (en) | 2012-07-18 |
| CN102589406B CN102589406B (en) | 2014-10-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878965A (en) * | 2012-09-25 | 2013-01-16 | 浙江吉利汽车研究院有限公司杭州分公司 | Device and method for calibrating sensitivity of chest displacement sensors in dummy in car crash test |
| CN109211509A (en) * | 2017-07-04 | 2019-01-15 | 上汽通用汽车有限公司 | The potentiometric calibration system of dummy breast for safety collision test |
| CN110779733A (en) * | 2019-11-20 | 2020-02-11 | 天津瑷睿赛福科技有限公司 | Dummy chest mounting plate with sensor calibration function |
| CN111197955A (en) * | 2019-11-12 | 2020-05-26 | 西安邮电大学 | Inductance sensor calibration device and inductance sensor calibration method |
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| KR20020054798A (en) * | 2000-12-28 | 2002-07-08 | 이계안 | Apparatus for testing a performance of the chest of shock dummy |
| US7088095B1 (en) * | 2004-02-04 | 2006-08-08 | Honeywell International Inc. | Balanced magnetic linear displacement sensor |
| CN202049029U (en) * | 2011-03-24 | 2011-11-23 | 浙江吉利汽车研究院有限公司 | Sensor installing platform for integrated dummy chest |
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2012
- 2012-02-22 CN CN201210040661.8A patent/CN102589406B/en active Active
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|---|---|---|---|---|
| KR20020054798A (en) * | 2000-12-28 | 2002-07-08 | 이계안 | Apparatus for testing a performance of the chest of shock dummy |
| US7088095B1 (en) * | 2004-02-04 | 2006-08-08 | Honeywell International Inc. | Balanced magnetic linear displacement sensor |
| CN202049029U (en) * | 2011-03-24 | 2011-11-23 | 浙江吉利汽车研究院有限公司 | Sensor installing platform for integrated dummy chest |
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| SAE: "《美国汽车工程学会标准》", 30 September 2010 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878965A (en) * | 2012-09-25 | 2013-01-16 | 浙江吉利汽车研究院有限公司杭州分公司 | Device and method for calibrating sensitivity of chest displacement sensors in dummy in car crash test |
| CN102878965B (en) * | 2012-09-25 | 2017-01-25 | 浙江吉利汽车研究院有限公司杭州分公司 | Device and method for calibrating sensitivity of chest displacement sensors in dummy in car crash test |
| CN109211509A (en) * | 2017-07-04 | 2019-01-15 | 上汽通用汽车有限公司 | The potentiometric calibration system of dummy breast for safety collision test |
| CN111197955A (en) * | 2019-11-12 | 2020-05-26 | 西安邮电大学 | Inductance sensor calibration device and inductance sensor calibration method |
| CN111197955B (en) * | 2019-11-12 | 2021-05-18 | 西安邮电大学 | Inductance sensor calibration device and inductance sensor calibration method |
| CN110779733A (en) * | 2019-11-20 | 2020-02-11 | 天津瑷睿赛福科技有限公司 | Dummy chest mounting plate with sensor calibration function |
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| CN102589406B (en) | 2014-10-01 |
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