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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
A principle of designing realizable precision interfaces between sensors and digital ports of microcontrollers and microconverters which enable one not only to measure a physical variable but also to estimate its derivative was proposed.
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The sensor is inserted in a vacuum chamber; the rotating mechanism of the sensor and location of the ports in the facility enables measurements along the plasma column.
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It is proposed that the compact neutron cameras be placed inside the shielding blocks located in the equatorial (nine collimators) and diverter diagnostic (seven collimators) ITER ports.
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By switching the six ports switching valve, the retained chelates can be back-flushed by mobile phase and travel towards the analytical column.
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The data demonstrated that Avacha Bay was subjected to heavier anthropogenic impact than the water areas of the ports of Kholmsk and Magadan.
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| | This paper describes an accurate method for measuring the efficiency of low loss reciprocal two-ports network under larger mismatch. The measuring accuracy of the system does not depend strictly on the mismatch of the device to be tested. For example, if the reflection coefficient and the efficiency of the device are 0.1 and 0.99 respectively and the reflection coefficient of the load to the device is 0.1, the mismatch error is only ±2×10-4. The total uncertainty for this case is 0.06%. | | 本文介绍一种测量低损耗互易二端口网络在较大失配情况下的功率传输效率的测试系统。该系统的测量精度对被测器件的失配不敏感。如当被测网络及其给定负载的反射系数均达0.1时,对于效率约为99%的被测器件,失配误差仅有2×10~(-4),而总精度可达±0.06%。 | | 文摘来源 | | Implicit function representing the relationship among linear network variables, can be used to describe various linear elements and linear multiport networks. For the description of multiport network variables, it is not necessary to d istinquish excitations and responses, or to choose voltage ports and current ports, l mplicit function representations for one-port, two-port and multiport networks are discussed, Hence, the following can be derived: singular one-port elements ( nuIlator and norat... | | 用隐函数表示线性网络的变化关系,可以描述各种类型的线性元件和各种特性的线性多口网络,而且在描述多口网络的端口网络变量时,既不要区分激励量和响应量,也无需选定电压口和电流口。文章讨论了隐函数表示法对单口、双口及多口网络的描述,并由此引出奇异单口元件维零器、维非器、奇异双口元件零非器及线性多口网络的约束矩阵分析法。 | | 文摘来源 | | A computer simulation analysis of the uncertainties in complex reflection coefficient measurements of a six-port reflectometer is given in this paper. Because the only error source for a calibrated six-port reflectometer is the microwave power measurement error, the present analysis tries to find the relationship between network parameters of six-ports and the related measurement error based on a given power measurement error level.The optimum six-port network parameters are then found and the maximum... | | 本文用计算机模拟的方法对六端口反射仪进行了分析。对一个校准了的六端口反射仪来说,唯一的误差源便是微波功率测量的误差,故本文着重探求在给定功率测量误差的条件下,六端口网络参数与复反射系数测试误差的关系,并由此求得最佳的六端口网络参数。 为实现此网络参数,文中给出了一个由常用微波元件组成的多倍频程微波电路,该电路的CAD程序可设计的最大频宽比为9:1。一个2GHz至8GHz频宽的电路已在实验室做出。 | | 文摘来源 | |   | | << 更多相关文摘 |
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