Spectrometer-component-based non-contact engine exhaust flame monitoring device

Abstract

The invention provides a spectrometer-component-based non-contact engine exhaust flame monitoring device. The device can monitor the health state of an engine under the condition that the normal work of the engine is not affected. The working principle of the device is that: a pre-optical system acquires the complex radiation in exhaust flame of the engine, the complex radiation is transmitted into a spectrometer component through an optical fiber and is decomposed into monochromatic radiation through a grating in the spectrometer component, and an analog signal is converted into a digital signal by using a charge coupled device (CCD) detector; data processed by using the spectrometer component pass through a high-speed universal serial bus 2 (USB2), are transferred into a network module, are output through a network cable port, and are transmitted into a computer through a router; and the computer receives the spectral data and can judge the wear condition of the engine by comparing spectra and theoretical spectra of target elements to judge the existence of metals in the exhaust flame of the engine.

Description

Technical field [0001] The invention relates to a non-contact engine plume flame monitoring device based on a spectrometer component, which belongs to the field of optical detection. Background technique [0002] The working conditions of high temperature, high pressure, strong corrosion, and high-density energy release of liquid rocket engines make it a fault-prone part of the entire spacecraft system. Therefore, engine health monitoring technology is useful for improving the safety, reliability and economy of engines and aircraft. , Has important meaning. [0003] At present, the rocket engine health monitoring technology mostly uses contact monitoring technologies such as temperature and pressure sensors. This type of technology has two main deficiencies: (1) The monitoring sensor will intervene in the normal operation of the engine to a certain extent, thereby increasing the probability of engine failure; (2) Different sensor devices can only monitor the partial modules of the...

AI Technical Summary

Problems solved by technology

This type of technology mainly has two deficiencies: (1) the monitoring sensor will intervene in the normal operation of the engine to a certain extent, thereby increasing the probability of engine failure; (2) different sensor devices can only monitor the local modules in the engine system. Working conditions, monitoring personnel lack intuitive perception of the overall working conditions of the engine, which directly affects the timeliness and accuracy of their engine failure judgments

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