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Method for manufacturing a detector for determining at least one property of a measured gas

A detector and gas technology, applied in the field of oxygen component detection, which can solve the problems of weakening and unusable materials, etc.

Active Publication Date: 2018-11-27
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the material of the contact element and the connecting cable, welding methods that generate fusion cannot be used or cause weakening of the material, so that the detector can no longer meet the requirements during operation

Method used

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  • Method for manufacturing a detector for determining at least one property of a measured gas
  • Method for manufacturing a detector for determining at least one property of a measured gas
  • Method for manufacturing a detector for determining at least one property of a measured gas

Examples

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Embodiment Construction

[0041] figure 1 A schematic cross-sectional view of the detector 10 is shown. Sensor 10 is designed, for example, as an air intake sensor. The air intake sensor is used to control the air-fuel mixture of the internal combustion engine, so that by measuring the concentration of the oxygen component in the exhaust gas, it can adjust the mixture as stoichiometric as possible, so that the emission of harmful substances can be minimized through the most optimal combustion. Within the scope of the invention, the measurement space can therefore be an exhaust system of the internal combustion engine. The basic structure and mode of function are described, for example, in Konrad Reif (published): Sensors in Motor Vehicles, first edition 2010, pp. 160-165. Using broadband air mass sensors, in particular planar broadband air mass sensors, it is possible, for example, to determine the oxygen concentration in the exhaust gas over a large area and thus to draw conclusions about the air-fu...

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Abstract

The method involves arranging a sensor element (12) in a sensor housing, and connecting the sensor element with a contact member (24). A connection cable (36) is connected with the contact element in a form-fit or force-fit and firmly-bonded manner by a welded connection. The cable is enclosed by the contact element, where the contact element is made from stainless steel. The cable is made from a copper core with a nickel coating. Two electrodes are rotatable relative to each other in a plane perpendicular to an extension plane of the contact element and the cable. An independent claim is also included for a sensing element.

Description

Background technique [0001] Various detectors and methods for determining at least one property of a measurement gas in a measurement gas space are known from the prior art. Basically any physical and / or chemical characteristic of the gas can be measured here, one or more characteristics can be detected. The invention will be described below in particular with regard to the qualitative and / or quantitative detection of certain gas components of the measurement gas, in particular with regard to the detection of the oxygen component in the measurement gas. The oxygen content can be detected, for example, as partial pressure and / or as a percentage. Instead or in addition, however, other characteristics of the measurement gas can also be detected, for example the temperature of the measurement gas. [0002] Such a sensor can be designed, for example, as a so-called air intake sensor, as is known, for example, from Konrad Reif (published): Sensors in Motor Vehicles, first edition ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/00
CPCG01N27/4062
Inventor P·洪德P·温克勒B·米夏埃利斯T·哈雷尔S·霍佩
Owner ROBERT BOSCH GMBH
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