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protective device

一种保护装置、安装状态的技术，应用在测量装置、仪器、测量流体压力等方向，能够解决传感器元件损坏等问题

Active Publication Date: 2022-05-31
KISTLER HLDG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Depending on the intensity of the electromagnetic radiation, electromagnetic radiation may cause damage to the membrane and / or the sensor element

Method used

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Embodiment Construction

[0031] The sensor 2 is substantially rod-shaped along the longitudinal axis Z. The sensor 2 is mounted in the mounting portion 4 .

[0032] In one embodiment, the chamber volume is the chamber volume of a pressure chamber of an internal combustion engine.

[0035] The protection device 1 may be mounted on the sensor 2. In the state mounted on the sensor 2, the protective device 1 protects the film 3

[0037] In one embodiment, the protective device 1 and the sensor 2 are connected materially, for example by welding.

[0040] The membrane 3, the tank bottom 5 and the tank wall 6 enclose a volume on the membrane side, referred to as the membrane volume 35 for short.

[0043] There is no rectilinear connection through the channel 7 between the position on the membrane side 31 and the position on the media side 41.

[0044] FIG. 2 shows a preferred first embodiment of the protection device 1 comprising a section along the longitudinal axis Z,

[0047] In a preferred embodiment, the p...

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Abstract

The invention relates to a protective device (1) for a membrane (3) of a sensor (2); the sensor (2) determines a physical quantity transmitted by a medium acting on the membrane (3); the protective device (1) can Mounted on the sensor (2); the protective device (1) has a longitudinal axis (Z); the protective device (1) protects the film (3) from at least one radiation source (9) in the state mounted on the sensor (2) electromagnetic radiation; the protective device (1) has at least one channel (7), and the medium can reach the membrane (3) through the channel (7) when the protective device (1) is installed on the sensor (2); in the protective device ( 1) Under the state installed on the sensor (2), the electromagnetic radiation can propagate in the passage (7); wherein, the electromagnetic radiation propagating in the passage (7) can only be carried out on the wall of the passage, referred to as the passage wall (71). The membrane (3) is not reached until after at least one reflection.

Description

protective device technical field [0001] The present invention relates to a protective device for mounting on a sensor. Background technique [0002] A sensor determines a physical parameter and provides a sensor signal corresponding to the physical parameter under ideal conditions. For this purpose, sensor elements that are sensitive to physical variables are arranged in the sensor. The sensing element is usually made by sensing protective layer (e.g. membrane) of the device to protect it from certain external influences such as dust and / or liquids and / or gases and / or or electromagnetic radiation. This expression and / or is understood as a non-exclusive opposition. Membranes are usually made of metal or metal alloys or plastic to make. The medium is the carrier of physical parameters and acts on the membrane. [0003] The membrane is exposed to external influences. External influences are temperature, pressure, etc. [0004] The physical parameter is, for example,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L19/06
CPCG01L19/069
Inventor C·希尔
Owner KISTLER HLDG AG
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