| 摘要 |
FIELD: gas analysis, determination of points and intensity of leaks of natural gas from main pipe-lines with use of instruments installed on board the flying vehicle. SUBSTANCE: proposed device includes two lasers optically matched with unit for formation and output of radiation which irradiates tested section of land surface near pipe-line and records radiation scattered from land surface by means of receiving optical system and photodetector connected to amplifier- converter. Electric pulses corresponding to received radiation on wave lengths 11 and 12 go from output of amplifier-converter to buffer storage and then to calculator. For increase of probability and accuracy of determination of coordinates of point of leak warning device is manufactured in the form of display, each laser is connected to proper output of additional controlled unit controlling operational modes composed of delay forming unit, timer, commutator, amplifier-converter. In unit controlling operational modes outputs of commutator are connected to delay forming unit and timer, timer is coupled to delay forming unit and buffer storage, output of amplifier- converter is connected to buffer storage. There is additionally mounted unit forming temperature contrast of section of land surface near pipe-line which exceeds in dimensions section of land surface irradiated with laser radiation which is linked via commutator to unit processing field of temperature contrast coupled to additional visualization unit. Commutator is coupled to calculator. Apart from them device can be inserted with unit forming visual image coupled through commutator to visualization unit, unit for radiation returning which smoothly tunes length of radiation wave within range 3.1-3.6 μ connected to unit controlling operational modes and unit for spatial scanning with laser radiation. EFFECT: increased probability and accuracy of determination of coordinates of point of leak. |
