RU854167C - Method of remote measuring of atmosphere parameters - Google Patents

Description

- -,:: 3 iOK IlCxoMbic Aaodk gris DII: jf tse / Ya CHO idKCHMal large; which is selected from the joint venture - premises in the measurement tel-i-GM cs pm -: 11 x absorption and

There is one way that extremely high demands are placed on the stability of isotopes and: laser laser. Moreover, the lines from - - с are the factor о about vwe of the water absorption lines, the width does not exceed a fraction of the Ang:: mode. In this case, they should be close to.; -.:. : x 3 ciTMocuepe was approx.

The closest “invention” is the method, wherein irro and the given height send laser radiation with an intensity sufficient to create a sample in the air, record acoustic 1.-1 :: ;; 1 Teaching 5 - created by the breakdown, and the desired parameters are judged by time; / zalermki between the sending of the laser 5 prmemo - (acoustic fumes,. One-to-one -, - lomo:,: .... ..... .- ;, o, obene - ;; - g:.: .; choooy en1 is c possible: .., -l, e; e; -n-.; before night

-: V: G:. Nose; - -; but also

, -,: -. ; - 4th: -; - 10 sphere

G.: - hgg: zlenna dos h-gh ae s-; -ei-,

.,. / -; .; :; ..;,;: .jotQ-r; tapes OA Ti t --- V- (rv: С 1 i,., ...; r g X. -; - CV-e; y; v iegm--: Г;

; l; aa: Chechin measured yoml-ichg; with/

 nSiO;: a linen; 1 lens; - south of the south, S-l NaChg, ripi-ii-IAGOGO with EXTENSION - :: c. h g- pcs ... f / i hOS .- i V. f5; /../ .. t.: - ..- G -. J VJ-1 W / / VC; ,;

q.ii -4-; a breakdown:; (,, | | coefficient of sound and no sound at maximum u (C;

. about

1 (in i-os, chovrv: -; en -go -iS 1 oeni rcivinepaTj-pbi and BT: a i -iccw B a ;;

MSSf; Oe measurements OWEPS: ONE:: - 1g: G:, for TOEX FSTO h and OO

perchm: l | rzkh sul t lutem srdBneni; cig ia. Goethea., Jiereni lro .g Ms.,. ; -: apoimyr, / p frequencies; .. S

To implement the method, first laser radiation with an intensity of at least 10 W / cm is sent to the atmosphere by focusing it at a distance equal to the sounding height H, at a certain angle to the horizon, so that the sample height h lies about the range h - 10L - (4,605 - 1пО), where L is the laser probe length, 0 is the required measurement accuracy (in percent) "sound absorption coefficient for the highest frequency f

MO SS

Next, the spectral power (amplitude value) of the received signal is measured,

Such measurements are carried out in the selected spectral regions for various values of AND. The obtained signals are then used as calibration signals to determine the desired atmospheric parameters.

On Fig, 1 and 2 shows a diagram of the proposed device.

The device includes a powerful optical quantum generator (OKG) 1, a focusing device 2, an electro-acoustic transducer 3, a spectrum analyzer 4, computing Ugtroystvo 5:

In a device for obtaining the spectral power of the calibration signal, when the breakdown is ocyuJ; this is due to the focusing laser radiation, the optical beam is focused at. with the help of the Focusing device 2 at a distance of 5 is equal to the sounding height: 1 at a certain angle to the horizon During the measurement process in the device shown in Fig. 2, the laser pulse is focused and is created - at a height of H, Acoustic wave: -a, prop -elshy through the atmosphere; pri-m-: there is an acoustic transducer. lefvi 3, i: the zelicins of the amplitudes of the received gig-al are compared with the values of the selected sections of the spectrum during calibration at the same range,

To determine the fraction of the spectral acoustic transparency P, "c. relative change in the amplitude of the incoming signal

. - Iiii ± R If

b where, is the spectral power of the akus

t and the signal

th atmosphere; R is the distance from the breakdown region to the receiver of sound radiation (determined from the geometry of the location of the source and receiver and the height H of the breakdown region) -; 1 - spectral power of an acoustic signal during calibration at different ranges. Temperature and humidity are determined by the relative change in the amplitude of the incoming signal for two pairs of sound frequencies: fyi and f, and, In this case, the following are measured: ,,. h Ii, / Ii, - OTNOIfg / I. the systemic changes in the amplitudes of the signal at frequencies f, 5, f and are calculated 4 4H The values of L and A are related analytically to temperature T and relative humidity U. To achieve greater measurement accuracy, it is advisable to measure at frequencies of 1.5 and 10 kHz .

//////////////////////// Fie. 1

ifi.l