DEVELOPMENT OF A METHOD FOR MEASURING PPFD DISTRIBUTION OVER THE TECHNOLOGICAL AREA OF A GREENHOUSE BY A MOBILE INSTALLATION

Mapping Intimacies ◽

10.25039/x48.2021.po14 ◽

2021 ◽

Author(s):

V.А. Panin ◽

М.А. Fedorishchev

Keyword(s):

Measurement Method ◽

Average Irradiance ◽

Mobile Measurements ◽

Technological Area

A mobile installation for measuring the distribution of PPFD over the technological area of greenhouses has been implemented, and a measurement method has been developed using this installation. Mobile measurements were organized, according to the results of which, the errors in determining the average irradiance and uniformity of irradiation were established.

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A new mental illness stigma measurement method: Error choice

PsycEXTRA Dataset ◽

10.1037/e683152011-559 ◽

2011 ◽

Author(s):

Patrick Michaels ◽

Patrick Corrigan

Keyword(s):

Mental Illness ◽

Measurement Method ◽

Mental Illness Stigma ◽

Method Error

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Measurement method for eye opening estimation on digital signals

IEE Proceedings F Communications Radar and Signal Processing ◽

10.1049/ip-f-1.1987.0079 ◽

1987 ◽

Vol 134 (5) ◽

pp. 454

Author(s):

M. Kawashima

Keyword(s):

Measurement Method ◽

Digital Signals ◽

Eye Opening

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Analysis of significant measures for thermal conductivity

Izmeritel`naya Tekhnika ◽

10.32446/0368-1025it.2020-3-35-42 ◽

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.

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