Time measuring device and method after target projectile is intercepted and impacted

Abstract

The invention discloses a time measuring device and method after a target projectile is intercepted and impacted. The time measuring device comprises a light emitting unit, an optic fiber sensing network, a photoelectric detecting unit, a data collecting and processing unit and a calculating module; the light emitting unit emits a light signal; the optic fiber sensing network transmits the light signal to the photoelectric detecting unit; the photoelectric detecting unit converts the light signal into an electrical signal and outputs the light-transmission state; according to the light-transmission state, the data collecting and processing unit reports the data frame matched with the light-transmission state in the fixed time interval Tau; and the survival time T1 and the hit moment T2 ofthe target projectile in the collision process are calculated according to the type and quantity of the data frame by the calculating module. According to the time measuring device and method after the target projectile is intercepted and impacted, calculation of the survival time and the hit moment of the target projectile are realized, and the time measuring device and method has the advantagesof being wide in frequency bandwidth, free from electromagnetic wave interference, small in size, small in weight, high in winding, resisting in corrosion and low in cost, measuring for the target projectile in the interception process is complete and comprehensive, and supporting for inversion of the damage process is provided.

Description

technical field [0001] The invention belongs to the technical field of information measurement, and in particular relates to a device and method for measuring time after a target bomb is intercepted and impacted. Background technique [0002] With the improvement of the guidance accuracy of the anti-missile weapon system, the measurement accuracy requirements for the interception information of the target missile are also getting higher and higher. Accurate measurement of the survival time of the target missile and the moment of hitting the target can provide powerful data support for the identification of the guidance accuracy of the anti-missile weapon system, the judgment of the damage effect, and the analysis of the error factors of the system. [0003] At present, the measurement methods of target missile interception information mainly include acoustic detection, radar tracking, and optical imaging, etc., all of which have certain limitations. The cost of acoustic det...

AI Technical Summary

Problems solved by technology

Due to the extremely short interception time of the target missile (on the order of hundreds of μs), in order to realize the rapid measurement of the survival time and the time of hitting the target, the response frequency of the sensor should be above 10MHz, which presents great technical difficulties

In addition, the impact process will generate strong electromagnetic interference, which can easily lead to the failure of electrical sensors

Therefore, it is difficult to accurately measure the survival time and the moment of hitting the target during the interception process of the target missile by using traditional electrical sensors.

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