Device and method for calibrating sensitivity of chest displacement sensors in dummy in car crash test

A technology of displacement sensor and collision test, which is applied in the direction of measuring devices, instruments, etc., can solve problems affecting the sensitivity of chest displacement sensors, etc., and achieve the effects of reducing impact, increasing accuracy, and accurate sensitivity

Active Publication Date: 2013-01-16
HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2
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Problems solved by technology

However, after the calibration of the chest displacement sensor is completed, the chest displacement sensor needs to be reinstalled into the chest cavity of the dummy. During this process, the chest displacement sensor will inevitably be collided with the ribs and spine in the chest cavity of the dummy, thus affecting the sensitivity of the chest displacement sensor.

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  • Device and method for calibrating sensitivity of chest displacement sensors in dummy in car crash test
  • Device and method for calibrating sensitivity of chest displacement sensors in dummy in car crash test
  • Device and method for calibrating sensitivity of chest displacement sensors in dummy in car crash test

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0051] figure 1 is a schematic diagram of the dummy structure, such as figure 1 As shown, the dummy 100 includes ribs 102 , and the two ends of the ribs 102 are respectively connected to the spine 101 and the sternal plate 103 .

[0052] The calibration device of the present invention is used to make the chest displacement sensor 200 in the original position of the dummy's chest produce multiple different displacements to obtain multiple measurement values. The calibration device includes: a plurality of mutually independent such as Figure 9 As shown in the measuring block 300 (only one measuring block is shown as an example in the figure), the plurality of measuring blocks 300 are suitable for being respectively installed on the chest of the dummy ...

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Abstract

The invention relates to the filed of car crash experimental devices, particularly to a device and method for calibrating sensitivity of chest displacement sensors in a dummy in a car crash test. The device includes a plurality of mutually independent measuring blocks suitable for being mounted at the chest of the dummy, to push the chest displacement sensors at the original positions in the chest of the dummy to move; and the measuring blocks are different in length, so as to prompt the chest displacement sensors to generate corresponding displacement. As the calibrating device is provided with the plurality of mutually independent measuring blocks suitable for being mounted at the chest of the dummy respectively and being different in length, the chest displacement sensors can be calibrated through adopting the measuring blocks to push the chest displacement sensors at the original positions in the chest of the dummy to move, as a result, the influence on the sensitivity of the chest displacement sensors, caused by dismounting and mounting of the chest displacement sensors in the prior art can be reduced.

Description

technical field [0001] The invention relates to the field of automobile crash test devices, in particular to a sensitivity calibration device and a sensitivity calibration method for a chest displacement sensor of a car crash test dummy. Background technique [0002] In the process of real vehicle crash test, the dummy is used to replace the real person to simulate the degree of loss in the collision process, in order to make the dummy can accurately reflect the motion response characteristics of the real person in the collision process, and can make a significant impact on the vehicle's collision safety. To make a correct evaluation, the calibration of the test dummy is the key measure to ensure its biological fit and enhance the accuracy of the test data. For this reason, C-NCAP stipulates that the dummy should be calibrated every two crash tests, and the chest displacement Sensor calibration is part of the content of dummy calibration. [0003] Due to the obstruction of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/02
Inventor 李东浩韩刚刘卫国赵福全
Owner HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST
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