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Static and dynamic acceleration testing device

A technology of dynamic acceleration and test device, applied in the direction of measurement device, measurement of acceleration, speed/acceleration/shock measurement, etc., can solve problems such as the gap between the properties of braking performance test and achieve the effect of accurate test data

Active Publication Date: 2010-06-02
SHANGHAI SIPAI AUTOMATION INSTR ENGCO +1
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Problems solved by technology

[0003] At present, the standard vibration table is used to calibrate the acceleration sensor, and the calibration method is compared with the standard acceleration sensor, but this method still has a large gap in the nature of the braking performance test.

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Static test principle of the present invention:

[0024] Because when the sensor is horizontally stationary, its measured acceleration value relative to the ground is 0g. When the sensor is placed obliquely, the output of the sensor is the component of the acceleration of gravity along the measuring axis of the sensor, that is, the relationship between the output of the acceleration sensor and the sinusoidal function of the inclination angle. Using this principle, we can obtain standard acceleration values ​​by changing the angle between the measurement axis of the acceleration sensor and the horizontal. According to the requirements of the industry standard "Portable Brake Tester", eight test points within ±90 degrees were selected, namely ±30 degrees, ±45 degrees, ±60 degrees, and ±90 degrees as test points. The static output of the eight poi...

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Abstract

The invention relates to a static and dynamic acceleration tester, comprising a computer, a motion controller, a static acceleration generator, a dynamic acceleration generator, and a portable braking-ability testing instrument, wherein, the static acceleration generator mainly comprises a stepping motor, a photoelectric encoder, and an angular platform; the dynamic acceleration generator mainly comprises a servomotor and a rotation platform. The invention has the advantages of static and dynamic testing method, convenient installation, simple and quick testing process, high degree of automation, and ability of satisfying measuring precision requirement of related national standard, and calculating, memorizing, inquiring and printing the test result.

Description

technical field [0001] The invention relates to an acceleration test device, in particular to a test device for testing the static and dynamic acceleration of vehicles. Background technique [0002] With the rapid development of the transportation industry, the number of automobiles has increased rapidly and the braking performance of the vehicle directly affects the driving safety. Therefore, the portable braking performance tester (referred to as the road tester) is developed and produced with the acceleration sensor as the main detection element. ) came into being and became widely used. However, since the portable brake performance tester is a product of mandatory verification, the corresponding static and dynamic acceleration test devices are essential, which can meet the needs of road tester production, daily maintenance calibration and annual inspection calibration. [0003] At present, the standard vibration table is used to calibrate the acceleration sensor, and th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007G01L5/28G01P15/00G08C17/02
Inventor 蒋宇晨伦耀森肖衍雄袁雄鹤徐弢高文翔
Owner SHANGHAI SIPAI AUTOMATION INSTR ENGCO
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