scholarly journals Research and analysis based on transformer DC resistance measurement data

2019 ◽  
Author(s):  
Jing Wang
Keyword(s):  
Measurement Data ◽  
Resistance Measurement ◽  
Dc Resistance

Studies of Adhesive Delamination Using DC-Resistance Measurement

1995 ◽  
Vol 34 (1) ◽  
pp. 117-142
Author(s):  
R. C. L. Tai ◽  
Z. Szklarska-Smialowska
Keyword(s):  
Resistance Measurement ◽  
Dc Resistance

scholarly journals Evaluation of vehicle parameters depending on technical vehicle inspection

Tehnika ◽  
2021 ◽  
Vol 76 (3) ◽  
pp. 352-357
Author(s):  
Vlastimir Dedović ◽  
Vojislav Božanić ◽  
Milan Božović
Keyword(s):  
Road Safety ◽  
Measurement Data ◽  
Measured Data ◽  
Safety System ◽  
Resistance Measurement ◽  
Safety Improvement ◽  
Vehicle Inspection ◽  
The Impact ◽  
Different Levels

In a strategic document of EU for Road safety improvement, up to 2030, "safe vehicle" is recognized as one of the pillars of a stable Road safety system. The part of the "safe vehicle" pillar is technical vehicle ispection, where parameters important for road safety are periodically checked. The aim of this work is to determine the quality of the measurement data and the ability to repeat measurements of some parameters during technical vehicle inspection, or more precisely, to determine whether measured data of turning wheel resistance and brakes ovality differ depending on the inspection place. The research is done by inspecting ten vehicles at five inspection places with different levels of resources use. The results show that the spread of measured data of turning wheel resistance is statistically significant and that it depends on the inspection place, as well as that measured data of turning wheels resistance significantly vary between inspection places. The measured percentage of brakes ovality is different from one inspection place to another, but the differences are statistically significant only for right wheels. The impact of inspection place, although less than in turning wheel resistance measurement, is still significant.

scholarly journals Novel Wood Resistance Measurement Method Reducing the Initial Transient Instabilities Arising in DC Methods Due to Polarization Effects

Electronics ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 1253
Author(s):  
Silvia Casans Berga ◽  
Rafael Garcia-Gil ◽  
A. Edith Navarro Anton ◽  
Alfredo Rosado-Muñoz
Keyword(s):  
Relative Humidity ◽  
Electrical Resistance ◽  
Measurement Method ◽  
Resistance Measurement ◽  
Ambient Conditions ◽  
Transient Time ◽  
Polarization Effects ◽  
Initial Transient ◽  
Wood Resistance ◽  
Dc Resistance

A novel method for measuring the electrical resistance in wood is presented. It is based on applying an Alternating Current (AC) to two electrodes rammed into the wood. The method reduces the transient time for value stabilization. In case of Direct Current (DC) resistance measurement methods, typically used in wood measurement, an initial transient exists, invalidating the measured value during an initial transient period. This measurement method uses an electronic circuit based on a relaxation oscillator where the wood automatically sets the oscillation frequency depending on its electrical resistance. Compared to other AC methods, this circuit greatly simplifies the measurement process, not requiring any previous analysis for wood AC frequency estimation. Experimental results for four different wood species showed that, in all cases, the transient response of the measured wood resistance is improved when compared to the DC resistance method, reducing the stabilization time from 10–12 min in DC measurements to almost zero for the novel measurement method. The deviation between the initial wood resistance measurement and the stable value resulted in a range between 0.2% and 5% with the proposed method, while a range between 6% and 10% was obtained when using the DC method. Moreover, the proposed circuit is able to detect changes in wood resistance produced by small variations in temperature and environmental relative humidity during continuous long term measurements. For repeatability analysis, it was verified that similar ambient conditions of temperature and relative humidity (variations lower than 1 °C and 1%, respectively) in different moments provided variations lower than 1.5%. The method can also be applied to other fiber materials affectd by polarization effects when an electrical current is applied into them.

Application of in situ UV-vis spectroscopy and an in situ dc resistance measurement technique to the study of a poly(thiophene-3-methanol) film

1997 ◽  
Vol 437 (1-2) ◽  
pp. 167-174 ◽  
Author(s):  
Eeva Lankinen ◽  
Maija Pohjakallio ◽  
Göran Sundholm ◽  
Panu Talonen ◽  
Timo Laitinen ◽  
...  
Keyword(s):  
Measurement Technique ◽  
Resistance Measurement ◽  
Vis Spectroscopy ◽  
Dc Resistance

Four‐point dc‐resistance measurement apparatus for anisotropic crystals

1986 ◽  
Vol 57 (5) ◽  
pp. 941-944 ◽  
Author(s):  
B. W. Pfalzgraf ◽  
H. Spreckels ◽  
H. Müscher
Keyword(s):  
Resistance Measurement ◽  
Measurement Apparatus ◽  
Dc Resistance

Metrological support of individual blood glucose meters in telemedicine

2019 ◽  
pp. 52-56
Author(s):  
Yu.F. Glukhov ◽  
N.V. Krutikov ◽  
A.V. Ivanov ◽  
N.P. Muravskaya
Keyword(s):  
Blood Glucose ◽  
Blood Glucose Level ◽  
Glucose Level ◽  
Measurement Data ◽  
Test Method ◽  
Level Measurement ◽  
Measurement Devices ◽  
Real Practice ◽  
Health Care Centers ◽  
Medical Measurement

We have studied and analyzed status and metrological supervision of blood glucose monitors, individual devices for a person’s blood glucose level measurement. It has been indicated that nowadays blood glucose monitors like other individual devices for medical measurement are not allowed to be involved in telemedicine public service. This accounts for absence of metrological supervision with these measurement devices in telemedicine. In addition, the key problem is absence of safe methods and means of remote verificaition, calibration and transmission of measurement data to health care centers. The article offers a remote test method for blood glucose monitors using a number of resistors with values correlating with measured blood glucose level. The available method has been successfully trialed in real practice.

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