Measuring system for measuring resonance frequencies on disc brake pads

A disc brake pad and resonant frequency technology, applied in the field of measurement systems, can solve problems such as insufficient non-contact microphone measurement, achieve stable measurement, avoid node lines, and achieve high precision

Inactive Publication Date: 2016-03-09
FEDERAL MOGUL BREMSBELAG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The non-contact microphone measurements known in the prior art are insufficient and only a limited recording can be made when using a microphone with a wide frequency range, since the connection of nodal lines within the sound field in the immediate surroundings of the microphone is unavoidable

Method used

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  • Measuring system for measuring resonance frequencies on disc brake pads

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Embodiment Construction

[0040] in figure 1 In, the measurement system according to the invention marked with 100 is shown.

[0041] The measuring system 100 is used to measure the resonance frequency of the disc brake pad.

[0042] figure 1 The illustrated measurement system 100 basically includes two elements. The first element is a measuring device, which includes an object holder 10, an impulse stimulation device 11 and a sensor system 12. The second element is the data recording device 13, which includes a measurement computer, a frequency analyzer, and a computer unit marked with 14.

[0043] The object holder 10 is made of plastic foam in the form of a base, and the disc brake pad 15 is mounted on the holder at a defined position. Plastic foam is therefore used to support the disc brake pads and act as sound insulation against objects. Above the disc brake pad 15, that is, on the other side of the object holder 10 of the disc brake pad 15, a pulse stimulation device 11 is installed, figure 1 In ...

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Abstract

The invention relates to a measuring system (100) for resonant frequency measurement on a disc brake pad (15), said measuring system (100) comprising a data recording device (13) and a measuring device with a sensor system (12). The measurement system (100) can record as many resonant frequencies as possible, and the invention proposes a sensor system (12) including two or more microphones (20, 21, 22, 23).

Description

Technical field [0001] The invention relates to a measurement system for measuring resonance frequency on a disc brake pad. The measurement system includes a data recording device and a measurement device with a sensor system. [0002] In addition, the present invention relates to a method of measuring the resonance frequency on a disc brake pad using a microphone. Background technique [0003] Professionals in the field generally know and are familiar with the types of measurement systems mentioned at the beginning of this article. [0004] Resonance frequency is an important characteristic variable used to describe the vibration behavior of disc brake pads. The variables that affect the resonance frequency, that is, the vibration behavior of the disc brake pads include, for example, the elasticity, compressibility, density, mass, porosity, hardness, thickness, and geometry of the disc brake pads (such as disc brakes) Chip chamfering), and damping characteristics. [0005] When ins...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01N29/12G01N3/32
CPCG01N29/045G01N29/14G01N2291/014G01N2291/2696
Inventor 鲍里斯·沃尼兹
Owner FEDERAL MOGUL BREMSBELAG
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