SU368564A1 - BIBLCUTE I - Google Patents

Description

one

The invention relates to instruments for measuring the ionic composition of the atmosphere.

A device is known for measuring the volume charge of air, the concentration and spectrum of atmospheric ions, consisting of an aspiration ionization chamber, comprising a housing, a central high-voltage electrode consisting of galvanic cells, an external collecting electrode, an ion filter, and a recording instrument. A disadvantage of this device is the limited range of measurable ion spectrum mobilities.

The purpose of the invention is to provide measurement of any component of the ion spectrum while simultaneously measuring several spectral regions.

This goal is achieved in the proposed device due to the fact that the outer collecting electrode consists of rings of different lengths isolated from each other and from the body, and each ring is electrically connected to the input of a recording device.

The drawing schematically shows the proposed device comprising a housing / aspiration ionization chamber, collecting electrodes 2, galvanic elements of a high-voltage electrode 3, an ion filter 4, a recording device 5.

The central electrode, assembled from galvanic cells, is not collecting, therefore the first galvanic cell is connected to the camera body.

Equality is valid for such an ionization chamber.

Z.-G- (6-a)

K (x)

(one)

 () 1p / a

where K (x) is the distribution of the limiting mobilities of the ions along the collecting electrodes, recruited from the isolated. from each other and from the body of the rings;

five

X is the current coordinate along the collecting electrodes, starting from the input electrode;

G - air flow rate;

b is the internal radius of the external

0 electrode;

a - outer radius of the central

electrode;

2eo - the total potential of electroplating cells.

five

By blowing ionized air through the device, the ions are distributed over the collecting electrode according to (1). But since the collecting electrode is broken into

0 several separate electrodes, then ions of different mobility will be deposited on each of them, since these electrodes are removed at different distances from the origin. In practice, the spectral components of the ions to be measured are set, i.e., the whole spectrum is divided into the required number of areas that need to be measured. By knowing KTT and LMAX of each part of the spectrum, it is possible by formula (1) to find the width and location of the ring measuring this part of the spectrum, i.e., 1 / (° - a) nL1a LG - / C(.x) , s 91 - I / TFTTiу A WMBKC - 1 / (& a) p LGa - K (A:) M „H o - I / nif A WMHH iO Hence the width of the ring (f) - - - minTakim , on each ring of the collecting electrode a narrow part of the spectrum of ions is allocated, and the lightest ions will be deposited on the first ring, and the heaviest ions on the last ring. For each ring, formula (1) is valid. If you change the air flow rate, you can smoothly choose any components from the ion spectrum and register them in device 5. If device 5 is a multichannel recording device, then the parameters of the ion spectrum on all electrodes can be measured simultaneously. When single-channel, m device 5 do alternate survey of all electrodes. The subject of the invention is a device for measuring the air charge volume, concentration and spectrum of atmospheric ions, consisting of an aspiration ionization chamber, comprising a housing, a central high-voltage electrode consisting of galvanic elements, an external collecting electrode, an ion filter, and a recording instrument characterized by that, in order to make it possible to measure any component of the ion spectrum while simultaneously measuring several spectral regions, the outer collecting electrode of the aspiration ionization onnoy chamber includes insulated from each other and from the housing rings of different length, and each ring RE; cally connected with its inputs regastriruyun device.