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Method of and equipment for measuring ionic mobility

A technology of ion mobility and mobility, which is applied in the field of devices for measuring ion mobility, can solve the problem of high noise level

Inactive Publication Date: 2009-02-11
环境学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, the laminar nature of the fluid and the operating life of the pumps used to pump out the gas also pose problems
At the same time, the typical noise level of such pumps is very high

Method used

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  • Method of and equipment for measuring ionic mobility
  • Method of and equipment for measuring ionic mobility
  • Method of and equipment for measuring ionic mobility

Examples

Experimental program
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Embodiment Construction

[0032] Figure 1 to 4 A fixed inner cylinder 1 is shown, a radiation source 3 and a flexible circuit board are arranged on the surface of the inner cylinder, and the circuit board contains a measuring electrode 4. In this case, after removing the circuit board containing the measuring electrode, the outer diameter of the inner cylinder is approximately 25 mm. In the usual circuit board manufacturing method, the gold-plated measuring electrode 4 is formed on the surface of the flexible circuit board. The surface of the circuit board is like Figure 4 As shown, the white part represents the metal-plated area of ​​the circuit board and the black part represents the non-metal-plated area of ​​the circuit board. Along the gas flow direction on both sides of the measuring electrode, there are metal-plated areas 15 having the same voltage as the measuring electrode. This will make the electric field that deflects the ions in this region as stable as possible. Moreover, this arrangement r...

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Abstract

Method of and a device for measuring ion mobility, wherein ions in a medium are carried by means of an electric field and their mobility is measured. The measurement is facilitated by keeping the medium in a shear flow of the Couette type by rotating the essentially parallel electrodes with respect to each other.

Description

Technical field [0001] The present invention relates to a method for measuring ion mobility, in which ions in a medium are transported by means of an electric field and the ion mobility is measured. The invention also relates to a device for measuring ion mobility. The device includes an electric field for transferring ions in a medium and an ion meter for measuring ion mobility. Background technique [0002] Here, the ion mobility measuring device refers to a device for measuring the ion mobility in a medium and the mobility distribution in an electric field. Generally, the medium (actually a gas) measured by the above-mentioned device is ionized before the actual measurement, for example, by using a radiation source, corona discharge or ultraviolet light. [0003] A typical method of implementing the device includes a drift tube that detects the time it takes for ions in the gas to move a given distance under the action of a given electric field. It takes different time for ion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/64G01N27/622G01F
CPCG01N27/622
Inventor P·努廷马基
Owner 环境学有限公司