Temperature influence correction method and system for power frequency electric field measuring device
A technology of power frequency electric field and measuring device, which is applied in the field of measurement and can solve problems such as inaccurate measurement results
Pending Publication Date: 2019-01-01
CHINA ELECTRIC POWER RES INST +3
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[0003] In order to solve the technical problem of inaccurate measurement results caused by only calibrating the probe body of the power frequency electric field measuring device at a fixed humidity in the prior art, the present invention provides a method for correcting the temperature influence of the power frequency electric field measuring device. The methods described include:
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[0053] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.
[0054] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...
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The invention provides a temperature influence correction method and system for a power frequency electric field measuring device. The method comprises the steps: placing the power frequency electricfield measuring device and an employed support in a power frequency electric field generating device in a closed space with the continuously adjustable temperature and humidity; obtaining the law of influence of the temperature changes on the power frequency electric field measuring device through temperature adjustment during constant humidity, and calculating a corresponding temperature influence correction coefficient; performing the numerical fitting of temperature correction coefficients under different humidity values to obtain a corresponding correction function; and performing the numerical correction according to the readings and a correction function of the power frequency electric field measuring device in the actual measurement. Compared with the prior art, the method and system iron out the defects that a part of conventional temperature-sensitive power frequency electric field measuring device change severely with temperature and cannot meet the application demands underdifferent temperatures, and are more accurate in obtained measurement results.
Description
technical field [0001] The present invention relates to the field of measurement technology, and more specifically, to a method and system for correcting temperature effects of a factory electric field measurement device. Background technique [0002] The power frequency electric field intensity has become an important indicator that must be studied and controlled in the construction of AC power transmission and transformation projects and environmental impact assessment. Due to the defect that the type electric field measuring instrument is greatly affected by humidity, various new electric field measuring devices such as photoelectric and MEMS have been developed. The practical application shows that although some new electric field devices overcome the influence of humidity, they are greatly affected by temperature changes and are difficult to measure. It meets the needs of accurate measurement of power frequency electric field in a wide temperature range outdoors, and ex...
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Login to View More IPC IPC(8): G01R35/00
CPCG01R35/005
Inventor张业茂张建功刘健犇刘震寰干喆渊贺伟李睿卢林汪美顺刘兴发谢辉春李妮倪园王延召翁孙贤王重卿
OwnerCHINA ELECTRIC POWER RES INST