Longitudinal multi-optical-path multi-waveband measuring device for optical transmittance of solid propellant smog

Abstract

The invention discloses a longitudinal multi-optical-path multi-waveband measuring device for optical transmittance of solid propellant smog, and is used for solving the problem of a smoke box method that the measure precision of the smog optical transmittance is poor. The longitudinal multi-optical-path multi-waveband measuring device comprises a light source unit, a beam splitting unit, a medium unit, a signal receiving unit, a signal processing unit and a measure and control software unit. Incidence light is split by the beam splitting unit into reference light and measure light, the measure light perpendicularly enters a smog area from a light incidence window on the upper part of a combustion chamber, two beams of light are respectively received by a sensor, and an output signal can be processed to acquire the smog optical transmittance. By designing the longitudinal optical path, the unfavorable influence of the sedimentation effect of the smog on the measure precision can be eliminated. By designing three optical paths, the synchronous measurement of infrared, visible light and laser transmittance of the smog can be realized. The longitudinal multi-optical-path multi-waveband measuring device is suitable for measuring the optical transmittance of the smog which is produced by materials such as a solid propellant, propellant powder and a cladding layer under a given condition and has an important significance on the research of low-characteristic-signal propellants.

Description

technical field [0001] The invention relates to the technical field of solid propellants, in particular to a longitudinal multi-optical path and multi-band measuring device for the optical transmittance of solid propellant smoke. Background technique [0002] Solid propellants and their coating materials produce a lot of smoke and flames when the rocket motor is working, which directly affects the guidance and stealth performance of the missile. The smoke level of solid propellant is an important indicator that must be strictly controlled in the development and production of low signature propellant. The establishment of a scientific measurement device for the smoke level of propellant is an important content in the development of guided weapons. [0003] To measure the smog level of propellants, smoke is generally used to characterize guidance signals such as radar wave signal attenuation and infrared (visible light, laser) optical transmittance. Smoke optical transmittanc...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a longitudinal multi-optical path and multi-band measuring device for the optical transmittance of solid propellant smoke, so as to overcome the shortcomings of the existing smoke box method measuring device

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