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Dynamic calibration apparatus for portable brake tester

A technology of dynamic calibration and tester, which is applied in the direction of measuring devices, vehicle testing, machine/structural component testing, etc., and can solve problems such as difficult dynamic calibration

Inactive Publication Date: 2009-03-11
广州市计量检测技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] Therefore, domestic metrology and testing institutions only perform static calibration on the portable brake performance tester at this stage, and it is difficult to carry out dynamic calibration

Method used

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  • Dynamic calibration apparatus for portable brake tester
  • Dynamic calibration apparatus for portable brake tester
  • Dynamic calibration apparatus for portable brake tester

Examples

Experimental program
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Embodiment Construction

[0030] Such as figure 1 As shown in Fig. 4, a kind of dynamic calibration device of portable brake tester, this calibration device comprises control processing module and frame 4, is provided with horizontal rotating shaft 5 and and to this rotating shaft movable on frame 4 The driving mechanism driven by 5 is provided with an acceleration sensor fixing mechanism on the rotating shaft 5, and is also provided with an angle sensor 9 that moves synchronously with the rotating shaft 5. The driving mechanism and the angle sensor 9 are all electrically connected to the control processing module. A connection port 14 that can be electrically connected to a brake tester 13 to be calibrated is provided on the top.

[0031] Described control processing module comprises the PC machine 11 (being commonly called as upper computer) and single-chip microcomputer 12 (being commonly called as lower computer) that are electrically connected to each other, and described driving mechanism compris...

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Abstract

The invention discloses a dynamic calibrating device of a portable braking tester, which comprises a control treatment module and a stander; a horizontal rotating shaft and a driving mechanism which drives the rotating shaft are movably arranged on the stander, the rotating shaft is provided with an acceleration sensor fixing mechanism and also an angle sensor which moves synchronously with the rotating shaft; and both the driving mechanism and the angle sensor are electrically connected with the control treatment module which is also provided with a connecting port which can be electrically connected with the braking tester to be calibrated. The device can realize dynamic calibration, with accurate and reliable calibration result, high calibration efficiency, and good operability and repeatability, can guarantee personal and property safety, and greatly reduces the cost of the dynamic calibration.

Description

technical field [0001] The invention relates to a dynamic calibration device of a portable brake tester. Background technique [0002] The dynamic calibration of the portable brake performance tester can theoretically be carried out according to Article 7.2 of JJF 1168-2007 "Calibration Specifications for Portable Brake Performance Testers", that is, select a test vehicle with stable performance, and put the car into the test according to the relevant instructions. The speedometer and the school's portable brake performance tester are installed on the test vehicle together, and connected to the pedal switch. [0003] The test site and method shall be in accordance with the corresponding provisions of GB7258-2004 "Technical Conditions for Motor Vehicle Operation Safety". [0004] When the vehicle speed is about 30km / h and 50km / h, perform the braking test, repeat the measurement 3 times, and calculate the indication error of the fully emitted average deceleration (ie MFDD, th...

Claims

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Application Information

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IPC IPC(8): G01M17/007
Inventor 李想堂周伦彬
Owner 广州市计量检测技术研究院
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