对某型红外热像仪可靠性增长的研究与改进

Research and Improvement on Reliability Growth of a Type of Infrared Thermal Imager

热像仪的可靠性水平会直接影响使用者任务成功率、维护成本及寿命周期,因此其可靠性设计工作越来越受到关注。同时,就目前国内热像仪研制情况而言,研制样机的可靠性并不能反映小批量生产产品的可靠性水平。因此,为充分反映研制样机的可靠性水平,本文主要研究了某型热像仪在研制过程中的可靠性增长方法,分析了红外热像仪的故障,建立了红外热像仪的任务可靠性模型,提出了相应的改进措施,并采用可靠性增长的办法来验证所提措施的有效性。本文所提改进措施满足装备试验鉴定要求,可实现热像仪的可靠性增长和批量产品可靠性不降低的目标。

The reliability of thermal imagery has direct impact on the success rate of user tasks,maintenance costs and life cycle,so its reliability design is increasingly concerned.At the same time,as far as the development of thermal imagery in China is concerned,the reliability of the developed prototype does not reflect the reliability level of the products produced in small batches.Therefore,in order to fully reflect the reliability level of the developed prototype,this paper develops a method for certain infrared thermal imager that analyzes the feature of reliability growth in the development stage.We analyze the faults of the infrared thermal imaging camera,establish the mission reliability model of the infrared thermal imaging camera,propose corresponding improvement measures,and adopts the reliability to verify the effectiveness of the proposed measures.This method meets the requirements of equipment test and appraisal,and can achieve the goal of increasing the reliability of thermal imaging cameras and not reducing the reliability of batch products.