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陀螺输出中的1N交流成分对平台航向效应的影响 被引量:2
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作者 王东升 林晓彬 +2 位作者 刘玉峰 朱玲 张宝玉 《中国惯性技术学报》 EI CSCD 2007年第1期44-46,50,共4页
针对采用动力调谐陀螺(DTG)稳定平台的某型号系统,分析了陀螺仪输出信号中的1N交流成分(与转子转速同频的交流成分)对平台航向效应的影响。给出了系统中各坐标系之间的关系图和系统水平回路的简化框图。分析了台体在1N交流信号作用下的... 针对采用动力调谐陀螺(DTG)稳定平台的某型号系统,分析了陀螺仪输出信号中的1N交流成分(与转子转速同频的交流成分)对平台航向效应的影响。给出了系统中各坐标系之间的关系图和系统水平回路的简化框图。分析了台体在1N交流信号作用下的响应,给出了该交流信号引起的陀螺附加漂移公式,其中包含常值漂移和HSD(heading sensitive drift,航向漂移)两部分,从而说明了此交流成分可以引起平台的航向效应。结合实际参数进行了计算,结果表明陀螺附加漂移中的常值项可达0.092(°)/h,HSD分量可达0.055(°)/h。根据推导过程及陀螺漂移公式给出了相应的解决措施。在回路中使用针对陀螺自转频率的陷波器以及适当调整伺服回路的参数等可有效减小陀螺附加漂移,特别是HSD分量。 展开更多
关键词 动力调谐陀螺 1N交流成分 航向漂移 航向效应 伺服回路
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CT机直流电源中交流成分不容忽视
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作者 王浩 刘学斌 《现代医学仪器与应用》 2002年第3期39-39,共1页
故障现象1 开机后进不了M(监控)级,对话屏提示:“RUTHER ERROR”ERROR=811。查错误代码表可认定是AP(阵列处理器)DMA(数据存取)超时错误。 分析与检修 首先查AP电源,-5V、+12V电压正常,+5V电压却只有+4.2V左右,将其调到+5.
关键词 CT机 直流电源 交流成分 故障 检修
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直流纹波测量标准模块 被引量:1
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作者 陈静 方杰 《上海计量测试》 2021年第3期45-47,51,共4页
探讨直流稳定电源的输出纹波测量方法,设计了放大模块,对待测纹波信号进行预处理,利用有效值转换技术,将直流纹波的测量转换为直流电压的测量,从而形成直流纹波测量标准模块。采用标准信号源和纹波测量标准表分别对标准模块进行性能测量... 探讨直流稳定电源的输出纹波测量方法,设计了放大模块,对待测纹波信号进行预处理,利用有效值转换技术,将直流纹波的测量转换为直流电压的测量,从而形成直流纹波测量标准模块。采用标准信号源和纹波测量标准表分别对标准模块进行性能测量,结果表明直流纹波测量标准模块符合技术指标要求,并已应用于动力电池综合测试系统校准装置中。 展开更多
关键词 直流稳定电源 交流成分 直流纹波
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Data Flow&Transaction Mode Classification and An Explorative Estimation on Data Storage&Transaction Volume 被引量:2
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作者 Cai Yuezhou Liu Yuexin 《China Economist》 2022年第6期78-112,共35页
The public has shown great interest in the data factor and data transactions,but the current attention is overly focused on personal behavioral data and transactions happening at Data Exchanges.To deliver a complete p... The public has shown great interest in the data factor and data transactions,but the current attention is overly focused on personal behavioral data and transactions happening at Data Exchanges.To deliver a complete picture of data flaw and transaction,this paper presents a systematic overview of the flow and transaction of personal,corporate and public data on the basis of data factor classification from various perspectives.By utilizing various sources of information,this paper estimates the volume of data generation&storage and the volume&trend of data market transactions for major economies in the world with the following findings:(i)Data classification is diverse due to a broad variety of applying scenarios,and data transaction and profit distribution are complex due to heterogenous entities,ownerships,information density and other attributes of different data types.(ii)Global data transaction has presented with the characteristics of productization,servitization and platform-based mode.(iii)For major economies,there is a commonly observed disequilibrium between data generation scale and storage scale,which is particularly striking for China.(i^v)The global data market is in a nascent stage of rapid development with a transaction volume of about 100 billion US dollars,and China s data market is even more underdeveloped and only accounts for some 10%of the world total.All sectors of the society should be flly aware of the diversity and complexity of data factor classification and data transactions,as well as the arduous and long-term nature of developing and improving relevant institutional systems.Adapting to such features,efforts should be made to improve data classification,enhance computing infrastructure development,foster professional data transaction and development institutions,and perfect the data governance system. 展开更多
关键词 Data factor data classification data transaction mode data generation&storage volume data transaction volume
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The Art of Authenticity: Constantin Stanislavski and Merleau-Ponty
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作者 Robert F. Mullen 《Journal of Literature and Art Studies》 2016年第7期790-803,共14页
Constantin Stanislavski's Russian acting system, further developed by contemporary methodological practices, and Maurice Merleau-Ponty's philosophy of the body as object-subject are compared to illustrate how simple... Constantin Stanislavski's Russian acting system, further developed by contemporary methodological practices, and Maurice Merleau-Ponty's philosophy of the body as object-subject are compared to illustrate how simple, learned techniques can assist in the production of authentic and transparent interrelational presence. Authentic presence requires three components: (1) honest exposition of a person's singular, essential being; (2) empathy towards the needs of other, distinct and separate from the self; and (3) mutual reciprocation, which means giving back or responding somewhat equitably to the other with whom the self is in communication, and accepting the same respondence from the other if afforded. The comprehension of Merleau-Ponty's ontology combined with Stanislavski's performance technique is uniquely suited to interpersonal communications in the 'real world'. Stanislavski's artistic vision demands an intensity of attentive involvement in order to achieve onstage authenticity. Merleau-Ponty provides supportive philosophical schematics, especially in his controversial but effective use of the expression 'flesh'. While this study may initially appear to focus on the artist, the development of interrelational skills is reliably applicable to anyone who desires to obtain a higher degree of authenticity in collaborative presence. 展开更多
关键词 AUTHENTICITY EMBODIMENT INTERPERSONAL MERLEAU-PONTY PRESENCE Stanislavski subject/object
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