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红外双色复合仿真系统测温技术研究 被引量:6
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作者 张晓龙 刘英 +1 位作者 张盈 孙强 《光子学报》 EI CAS CSCD 北大核心 2012年第2期173-178,共6页
为了模拟红外制导时目标和干扰的等效辐射环境,并比较单色测温和比色测温两种方法在复杂环境下目标测温效果的差异,利用红外双色复合仿真系统对空间6km处目标和干扰弹进行了实物模拟.通过准确标定的热像仪,采用单色和比色测温两种方法... 为了模拟红外制导时目标和干扰的等效辐射环境,并比较单色测温和比色测温两种方法在复杂环境下目标测温效果的差异,利用红外双色复合仿真系统对空间6km处目标和干扰弹进行了实物模拟.通过准确标定的热像仪,采用单色和比色测温两种方法对不同温度的目标和干扰进行测试.利用经标定的中波热像仪和长波热像仪对黑体测温,黑体温度为(20~60)℃时,长波热像仪的绝对误差限为0.5℃;黑体温度为(50~120)℃时,中波热像仪的绝对误差限为0.2℃.当目标温度为500℃、干扰温度为1 000℃时,用长波红外、中波红外、比色方法测得的目标温度分别为28.5℃、148.3℃、322.4℃,干扰温度分别为56.7℃、223.2℃、660.1℃.实验结果表明,在复杂环境下采用比色测温方法更能真实反映目标的温度特性. 展开更多
关键词 红外制导 热像仪 复合仿真系统 比色测温
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振动台在顺臂安装条件下的离心力克服方法研究 被引量:1
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作者 梁颖亮 田昌会 +2 位作者 许素红 王斌科 张丽 《机械科学与技术》 CSCD 北大核心 2006年第11期1377-1379,共3页
在振动离心复合环境仿真系统中,当振动台动圈受离心力影响偏离原来的平衡工作位置时,将会影响振动台的正常工作。为了消除这种影响,本文提出了一种使用具有位置控制阀系统的空气弹簧来克服离心力的方法。并对地面振动台和离心机上振动... 在振动离心复合环境仿真系统中,当振动台动圈受离心力影响偏离原来的平衡工作位置时,将会影响振动台的正常工作。为了消除这种影响,本文提出了一种使用具有位置控制阀系统的空气弹簧来克服离心力的方法。并对地面振动台和离心机上振动台的振动分别进行了仿真计算,仿真结果表明:这种方法可以满足克服离心力的要求。 展开更多
关键词 振动离心复合环境仿真系统 振动台 离心力
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Simulation Research on Structure Changing Control over the Follow Up System of the Smart Mine
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作者 李杰 王琳 +1 位作者 孟嘉友 李世义 《Journal of Beijing Institute of Technology》 EI CAS 2000年第3期278-282,共5页
By analyzing the target's motion pattern, in terms of the requirement for the performance indexes of the follow up system, the structure changing control and time optimal theory is proposed. The system's co... By analyzing the target's motion pattern, in terms of the requirement for the performance indexes of the follow up system, the structure changing control and time optimal theory is proposed. The system's control scheme from three different aspects(the dynamic response simulation, compound control simulation and dynamic tracking simulation) is also studied. And all the results proved the feasibility of the synthetical utilization of the open loop control, speed decreased control and position closed loop control. 展开更多
关键词 structure changing control compound control CONTROLLER system analysis simulation
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Simulation calculation of solubility of insoluble compound M_mA_a in complex system
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作者 杨天足 张杜超 吴江华 《Journal of Central South University》 SCIE EI CAS 2012年第4期892-896,共5页
A simulation calculation model for the solubility of insoluble compound MmAa in complex system was established.According to coordination equilibrium principle,relevant dissociation reaction,complexation reaction,self-... A simulation calculation model for the solubility of insoluble compound MmAa in complex system was established.According to coordination equilibrium principle,relevant dissociation reaction,complexation reaction,self-complexation reaction and protonation reaction during insoluble compound dissolving were considered and then the mass balance equations about solubility calculation were obtained.In the case analysis,the solubility of silver chloride in ammonia system was obtained by simulation calculation,and curved surface charts of thermodynamic equilibrium about the total concentration of silver ions,pH and concentration of ammonia ions were drawn correspondingly.The results show that under the conditions of room temperature and 6 mol/L ammonia concentration,the calculated solubility value of silver chloride(34 g/L) is close to the actual value(31 g/L),demonstrating that this model is suitable for solubility calculation of insoluble compound MmAa in the complex system. 展开更多
关键词 complex system insoluble compound SOLUBILITY calculation model
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