A lamp for lighting electrical measuring instrument scales under test

1960 ◽  
Vol 3 (9) ◽  
pp. 784-784
Author(s):  
M. Sh. Kapnik ◽  
A. S. Sergeev
Keyword(s):  
Electrical Measuring ◽  
Electrical Measuring Instrument ◽  
Measuring Instrument

Establishment of Mathematical Model in Evaluation of Uncertainty in Indication Error Measurement Results

2014 ◽  
Vol 651-653 ◽  
pp. 428-431
Author(s):  
Xia Zhao
Keyword(s):  
Mathematical Model ◽  
Electrical Measuring ◽  
Electrical Measuring Instrument ◽  
Error Measurement ◽  
Measuring Instrument ◽  
Uncertainty In Measurement ◽  
Measurement Result ◽  
Three Phase ◽  
Measurement Results ◽  
Calibration Device

Taking Model DK-52 (Grade 0.05) multi-function three-phase electrical measuring instrument calibration device as an example, the paper describes how to evaluate the uncertainty in measurement result of indication errors in mathematical model.

Application of composite normal and taut elastic suspensions for raising gyroscopic and electrical measuring instrument sensitivity

1978 ◽  
Vol 21 (2) ◽  
pp. 241-242
Author(s):  
N. N. Novikov ◽  
V. I. Kolyaka ◽  
V. N. Martyuk
Keyword(s):  
Electrical Measuring ◽  
Electrical Measuring Instrument ◽  
Measuring Instrument ◽  
Instrument Sensitivity

EVALUATION OF IMPEDANCE OF CABLES IN GONIOPHOTOMETRY

2021 ◽  
Author(s):  
Pan Jiangen ◽  
Li Qian ◽  
Li Xiaoni
Keyword(s):  
Power Supply ◽  
Measurement Errors ◽  
Low Frequency ◽  
Electrical Measuring ◽  
Electrical Circuit ◽  
Electrical Measuring Instrument ◽  
Measuring Instrument ◽  
Equivalent Electrical Circuit ◽  
Electrical Circuit Model ◽  
Equivalent Electrical Circuit Model

In a goniophotometer system, it is often unavoidable to use long cables to connect power supply, electrical measuring instrument, and the device under test (DUT). The measurement errors caused by cable impedance should not be ignored. An equivalent electrical circuit model considering the cable impedance of a typical goniophotometer is established in this paper. The measurement errors caused by the cable impedance are analysed by simulation. In DC and low frequency circuits, the cable impedance is almost resistive, while the inductive impedance of cables is significant and may lead to considerable errors when frequency is above 1 kHz in the circuits. Cable solutions in goniophotometry are introduced and recommended.

Electrical Measurement Automated Calibration System Applied Research

2013 ◽  
Vol 278-280 ◽  
pp. 884-887
Author(s):  
San Qiang Wang ◽  
Xing Zhe Hou ◽  
Quan Zhou ◽  
Wen Li Chen ◽  
Qiu Hui Zhuang
Keyword(s):  
Rapid Development ◽  
Electrical Measuring ◽  
Calibration Method ◽  
Electrical Measurement ◽  
System Structure ◽  
Electrical Measuring Instrument ◽  
Automatic Calibration ◽  
Measuring Instrument ◽  
Calibration System ◽  
Working Principle

In recent years, with the rapid development of electric power, the construction of a large number of substation, electrical measuring instrument and device is also increasing, accordingly, testing and calibration work is growing. The traditional calibration method has been unable to meet the actual needs of work. Combining with the practical work, and put forward a new automatic calibrating method, this paper introduces the electrical measuring instrument verification device of automatic calibration system of the working principle and system structure, and illustrates the system application.

scholarly journals Penggunaan Discovery Learning Berbantuan Laboratorium Virtual pada Penguasaan Konsep Fisika Siswa

2017 ◽  
Vol 2 (4) ◽  
pp. 176 ◽  
Author(s):  
Putri Iman Sari ◽  
Gunawan Gunawan ◽  
Ahmad Harjono
Keyword(s):  
Computer Technology ◽  
Electrical Measuring ◽  
Discovery Learning ◽  
Virtual Laboratory ◽  
Control Group ◽  
Measuring Instrument ◽  
Virtual Lab ◽  
Instrument Control ◽  
The Media ◽  
Experimental Group

Discovery learning is a way of teaching that gives students the knowledge to construct a concept discovered through an experiment. The implementation of the experiment will be more effectively done by utilizing the media realized in computer technology, one of which uses virtual laboratory. This study aims to improve students' mastery of concepts of physics discovery aided by the application of learning virtual lab. The results showed that the increase in student mastery of concepts taught Using discovery learning assisted higher laboratoium more than the students who are not being treated. Mastery of concepts in each sub-material has increased significantly, except in the concept of electrical measuring instrument control group is superior to 1% compared to the experimental group.

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