A novel on-board and amplitude-only measurement method for phase array calibration

2016 ◽  
Author(s):  
Boshen Chen ◽  
Jun Ouyang ◽  
Guibin Wu ◽  
Rui Long
Keyword(s):  
Measurement Method ◽  
Phase Array ◽  
Array Calibration

Fast Amplitude-Only Measurement Method for Phased Array Calibration

2017 ◽  
Vol 65 (4) ◽  
pp. 1815-1822 ◽  
Author(s):  
Rui Long ◽  
Jun Ouyang ◽  
Feng Yang ◽  
Wangwang Han ◽  
Longjian Zhou
Keyword(s):  
Measurement Method ◽  
Phased Array ◽  
Array Calibration

Analysis of significant measures for thermal conductivity

2020 ◽  
pp. 35-42
Author(s):  
Yuri P. Zarichnyak ◽  
Vyacheslav P. Khodunkov
Keyword(s):  
Thermal Conductivity ◽  
Heat Flux ◽  
Surface Heat Flux ◽  
Heat Flux Density ◽  
Measurement Method ◽  
Conductivity Measurement ◽  
Surface Heat ◽  
Measuring Instrument ◽  
New Class ◽  
Achievable Accuracy

The analysis of a new class of measuring instrument for heat quantities based on the use of multi-valued measures of heat conductivity of solids. For example, measuring thermal conductivity of solids shown the fallacy of the proposed approach and the illegality of the use of the principle of ambiguity to intensive thermal quantities. As a proof of the error of the approach, the relations for the thermal conductivities of the component elements of a heat pump that implements a multi-valued measure of thermal conductivity are given, and the limiting cases are considered. In two ways, it is established that the thermal conductivity of the specified measure does not depend on the value of the supplied heat flow. It is shown that the declared accuracy of the thermal conductivity measurement method does not correspond to the actual achievable accuracy values and the standard for the unit of surface heat flux density GET 172-2016. The estimation of the currently achievable accuracy of measuring the thermal conductivity of solids is given. The directions of further research and possible solutions to the problem are given.

Acoustic Distance Measurement Method Using 2ch Microphones Measurable from 0m Based on Phase Interference and Removal of DC Component

2015 ◽  
Vol 135 (11) ◽  
pp. 1349-1350
Author(s):  
Kazuhiro Suzuki ◽  
Noboru Nakasako ◽  
Masato Nakayama ◽  
Toshihiro Shinohara ◽  
Tetsuji Uebo
Keyword(s):  
Measurement Method ◽  
Distance Measurement ◽  
Phase Interference ◽  
Dc Component

Study on Magnetic Measurement Method for Electrical Steels under Stress

2017 ◽  
Vol 137 (11) ◽  
pp. 654-660
Author(s):  
Kunihiro Senda ◽  
Shinji Koseki ◽  
Yoshiaki Zaizen ◽  
Takeshi Omura ◽  
Yoshiaki Oda
Keyword(s):  
Measurement Method ◽  
Magnetic Measurement ◽  
Electrical Steels
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