Sealed pressure-measuring member

A technology for measuring component and sealing pressure, which is applied to the measurement of tire pressure and the field of construction machinery tires, and can solve problems such as damage to the test body and unfavorable pressure measurement

Active Publication Date: 2012-07-11
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such prolonged exposure to chemical attack can damage the test body and thus be detrimental to the pressure measurement

Method used

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  • Sealed pressure-measuring member
  • Sealed pressure-measuring member
  • Sealed pressure-measuring member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] figure 1 A device according to a first embodiment is shown and is generally indicated by reference numeral 10 . The device 10 comprises a pressure measuring member 12 and a protective housing 14 for protecting the measuring member 12 . The device 10 also includes means 16 for securing the protective casing 14 to the inner surface 17 of the tire 18 . Tire 18 is used in construction work applications.

[0064] refer to Figures 2 to 4 , the protective housing 14 includes a first portion 20 and a second portion 22 . The device 10 includes a positioning support 24 for positioning the member 12 in the housing 14 . The parts 20, 22 are movable relative to each other, in this particular example disengageable from each other, and are arranged so that when they are assembled they allow air to communicate between the inside and outside of the housing 14, for example via the two parts 20, 22 space between. Portions 20, 22 can be positioned for inserting member 12 into housin...

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PUM

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Abstract

The invention relates to a pressure-measuring member (12) comprising: a pressure-measuring surface (106) functionally connected to a test body (96); a sealed pressure-measuring housing (100) in which the test body (96) is placed, whereby the pressure-measuring surface (106) is borne by a deformable wall (104) of the sealed pressure-measuring housing (100) that extends at a distance from the test body and the housing (100) defines an internal space (E); means (110) for transmitting the pressure between the pressure-measuring surface (106) and the test body (96), comprising a substantially incompressible material (136) that occupies all of the internal space (E); and energy storage means (101) and means (99) for processing the pressure detected by the test body (96), provided in the sealed housing (100).

Description

technical field [0001] The invention relates to the field of pressure sensors. [0002] The invention has application to the measurement of tire pressure, especially for construction machinery tires, but is not limited thereto. Background technique [0003] The prior art, in particular US 6 931 934 discloses a pressure measuring member which is arranged in the space delimited by the tire and the rim. This member is of the passive type and includes a protective housing. The member also includes a test body, and the housing includes a wall supporting a pressure measurement surface functionally connected to the test body. In particular, the wall comprises a notch designed such that the wall is positioned in contact with the test body. Under the influence of external pressure applied to the wall, the notch mechanically transmits the pressure to the test body, which is thus able to detect the pressure external to the component. [0004] However, the repetitive mechanical load...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L9/00G01L19/08G01L17/00
CPCG01L19/086G01L17/00B60C23/0493G01L19/0645G01L19/143G01L19/144
Inventor J·尚勒东德R·勒曼M·勒曼P·史密斯
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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