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Probe

A probe and fluid technology, used in the field of probes for sample fluid flow analysis, can solve problems such as difficult calibration of devices, reduction of optical absorption paths, and decreased resolution.

Active Publication Date: 2012-06-27
SERVOMEX GRP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has associated cost and gas supply issues and also reduces the optical absorption path
Also, any change in purge gas flow or synthesis can cause measurement errors
Another problem associated with particles in gas streams is that these particles either absorb or scatter light along absorption paths, which leads to loss of resolution and possible errors
Also, it is difficult to accurately calibrate the unit in the field

Method used

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Examples

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Embodiment Construction

[0012] according to figure 1 With the arrangement shown in , the gas probe 1 is inserted into the gas line 2 and the sample is drawn through the filter element 3 into the body of the probe body. Depending on the temperature and composition of the sample gas, the filter element may be formed from sintered stainless steel, porous ceramic, or similar suitable materials and designs. It is also possible to use a deflector shield 4 in the pipeline, if said deflector shield is adapted to protect the probe especially in abrasive environments. The sample is aspirated by means of a sample suction device 5 , for example using a suction system or a mechanical pump 6 . This device can be housed inside or outside the body of the probe and can be housed in a temperature-controlled environment to prevent the formation of condensation that can cause corrosion.

[0013] Once the gas sample is drawn through the filter, the gas sample is then drawn through the second filter or inlet aperture 8 ...

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PUM

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Abstract

The present invention relates to a probe having an elongated main body with a proximal end for attachment to a wall of a duct or volume and a distal end that is disposed on the interior of the duct, such that the main body forms a measurement space through which the fluid is drawn for analysis.

Description

technical field [0001] The present invention relates to a probe for sample fluid flow analysis. Background technique [0002] Optical methods such as absorption and luminescence measurements have been used for constituent gas analysis of sample streams for many years. A common technique is open path cross stack gas absorption monitoring. This typically involves sending a beam of light from a light source on one side of the flue gas or pipe to a detector on the other side, and measuring the optical absorption of the beam due to the target gas in the sample stream, from which the gas concentration can be inferred. This can include multiple channels in order to increase the absorption channel length and thus improve the detection range. [0003] However, to function effectively, the optical path from source to detector must be properly aligned, which requires great precision and the associated high installation costs. Additionally, if particles are present in the sample str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17G01N15/00G08B17/10G08B17/107
CPCG01N1/2258G01N21/05G01N21/8507G01N2021/8521G01N2021/8578G01N21/09
Inventor 马丁·洛佩斯詹姆斯·霍比理查德·P·科瓦奇基
Owner SERVOMEX GRP LTD