Parallel Measurement Based on Laue Effect

2014 ◽  
Vol 716-717 ◽  
pp. 928-931
Author(s):  
Mei He Yang
Keyword(s):  
Equilibrium Point ◽  
Measurement Method ◽  
Testing Effect ◽  
Test Results ◽  
Basic Principles ◽  
Interference Measurement ◽  
Parallel Measurement ◽  
Transparent Materials ◽  
Point Detection

In the paper, interference measurement method for end surface parallel measurement of transparent materials is described. Firstly, basic principles of optical plane template equilibrium point detection are analyzed, measurement algorithms and formulas for calculating optical parallelism are proposed, then possible error of algorithm is analyzed in details, concrete plan for correcting the error is proposed, overall method for testing parallelism is proposed on the basis, and finally related experiment is designed for testing and analyzing the method. Test results show that the method can prominently improve precision of testing parallelism with excellent testing effect.

scholarly journals Analysis of influencing factors of flow state concrete mixture performance

2021 ◽  
Vol 2076 (1) ◽  
pp. 012073
Author(s):  
Dandan Shi ◽  
Xing Qin ◽  
Hao Qu
Keyword(s):  
Measurement Method ◽  
Engineering Application ◽  
Performance Testing ◽  
Reducing Agent ◽  
Mineral Admixture ◽  
Raw Material ◽  
Concrete Mixture ◽  
Flow State ◽  
Test Results ◽  
Concrete Mix

Abstract Based on the principle of benefiting the durability of concrete, machined sand is used to configure C40 flow concrete, and the engineering application environment and economy are considered. In this paper, the author through the flow state concrete mix ratio design, give the raw material dosage, concrete mixing, finally combined with the workability measurement method, five groups of concrete mix performance testing. According to the test results, the influence of mineral admixture and water reducing agent on the workability of concrete mixture is studied and analyzed, and the reasonable admixture dosage and water reducing rate of water reducing agent and its admixture dosage are finally given.

scholarly journals Lyapunov Based Estimation of Flight Stability Boundary under Icing Conditions

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Binbin Pei ◽  
Haojun Xu ◽  
Yuan Xue
Keyword(s):  
Equilibrium Point ◽  
External Disturbance ◽  
Stability Boundary ◽  
Wind Tunnel Test ◽  
Test Results ◽  
Theoretical Support ◽  
Effect Model ◽  
Short Period ◽  
The Stability ◽  
Period Model

Current fight boundary of the envelope protection in icing conditions is usually defined by the critical values of state parameters; however, such method does not take the interrelationship of each parameter and the effect of the external disturbance into consideration. This paper proposes constructing the stability boundary of the aircraft in icing conditions through analyzing the region of attraction (ROA) around the equilibrium point. Nonlinear icing effect model is proposed according to existing wind tunnel test results. On this basis, the iced polynomial short period model can be deduced further to obtain the stability boundary under icing conditions using ROA analysis. Simulation results for a series of icing severity demonstrate that, regardless of the icing severity, the boundary of the calculated ROA can be treated as an estimation of the stability boundary around an equilibrium point. The proposed methodology is believed to be a promising way for ROA analysis and stability boundary construction of the aircraft in icing conditions, and it will provide theoretical support for multiple boundary protection of icing tolerant flight.

Research on rotating speed measurement method of turbodrill based on tilt sensor

2020 ◽  
pp. 095440622094443
Author(s):  
Wu Chuan ◽  
Wen Guojun ◽  
Han Lei
Keyword(s):  
Measurement Error ◽  
Inclination Angle ◽  
Measurement Method ◽  
Periodic Signal ◽  
Drilling Process ◽  
Test Results ◽  
Rotating Speed ◽  
Speed Measurement ◽  
Geological Conditions ◽  
Tilt Sensor

The rotating speed of turbodrill is a key parameter for adjusting the drilling process, which needs to be measured in real time. Based on this, a new rotating speed measurement method used in downhole turbodrill based on the tilt sensor is proposed in this paper. The basic principle is that a periodic signal will be generated by the tilt sensor along with the turbodrill, and then the rotating speed can be obtained by using fast Fourier transform to analyze the output data. Test results show that the measurement error is related to the inclination angle of the borehole, that is, this method cannot be used when the inclination angle is less than 0.4 degrees, while the measurement error is less than 3.5% when the inclination angle is more than 0.4 degrees, which meets the practical requirements. Compared with traditional methods, this method will not be interfered by mud, geological conditions and downhole vibration, and it is also a non-contact measurement method, which is very suitable for downhole environment.

Noninvasive acoustic blood volume measurement system for the POLVAD prosthesis

2011 ◽  
Vol 59 (4) ◽  
pp. 429-433 ◽  
Author(s):  
Z. Opilski ◽  
G. Konieczny ◽  
T. Pustelny ◽  
A. Gacek ◽  
R. Kustosz ◽  
...  
Keyword(s):  
Blood Volume ◽  
Measurement System ◽  
Measurement Method ◽  
Helmholtz Resonator ◽  
Volume Measurement ◽  
System Construction ◽  
Test Results ◽  
Actual Measurement ◽  
Blood Volume Measurement ◽  
Future Plans

Noninvasive acoustic blood volume measurement system for the POLVAD prosthesisThe following paper presents researches concerning a noninvasive real-time blood volume measurement system applied in POLVAD prosthesis. The system is based on the acoustic Helmholtz resonator principle. The basis of the measurement method, followed by the preliminary tests of the possibility of incorporating the Helmholtz resonance idea into the POLVAD prosthesis is shown. The paper includes the actual measurement system construction and test results, both static and dynamic obtained at the Foundation for Cardiac Surgery Development in Zabrze, Poland. Conclusions and future plans are presented too.

A Test Method of CCD Photoelectric Parameters

2011 ◽  
Vol 317-319 ◽  
pp. 1119-1122
Author(s):  
Nao Sheng Qiao ◽  
Chun Mei Yao ◽  
Yan Li ◽  
Xue Juan Chen
Keyword(s):  
Output Voltage ◽  
Measurement Method ◽  
Test System ◽  
Test Method ◽  
Test Results ◽  
The Real ◽  
Real Relation ◽  
Comparison Of The Results ◽  
The Ideal

Until now, no effective method to measure CCD photoelectric parameters. To solve the problem, a novel measurement method that combines hardware with software is proposed, and it can let hardware and software collaborate with each other to finish assignment together. Firstly, the ideal relation between output voltage and input exposure quantity of CCD is given. Secondly, some main photoelectric parameters of CCD are elaborated. Then based on the principle, test system of CCD photoelectric parameters that combines hardware with software is designed. Lastly, the real relation between output voltage and input exposure quantity of CCD is given, and the test results of experiment of each photoelectric parameter are obtained according to the relation. What’s more, analysis and comparison of the results of the experiment are given in this paper. The method is reliable and the precision is high in the experiment.

Adaptive Testing in Practice

2015 ◽  
Vol 4 (2) ◽  
pp. 37-49
Author(s):  
Tatiana Prextová
Keyword(s):  
Elementary School ◽  
Computerized Adaptive Testing ◽  
Ninth Grade ◽  
Adaptive Testing ◽  
Test Results ◽  
Basic Principles ◽  
Education Process

Abstract Testing as such is important for diagnostics and evaluation. It is used as feedback by both the pedagogues and the ones being tested. The more a teacher learns from the test results, the better is their chance to correct, clarify, or modify the test itself; i.e. to carry out the changes in their instruction or the education process. The more a student learns from the test, the better is their chance to thoroughly learn and master information, and to clarify problematic issues of a particular curriculum. Moreover, their motivation to further study is growing as they deal with more demanding tasks. Adaptive testing carried out in a suitable LMS offers such possibilities. This paper is aimed at the introduction of basic principles and rules of computerized adaptive testing. Moreover, it provides information about the process and results of computerized adaptive testing, which was experimentally carried out on the sample of 53 ninth-grade pupils at the Porubská elementary school in Ostrava.

Study on Standard Measurement Method of Magnetic Property of Fe-Based Amorphous Strip—Round Robin Test Results

2016 ◽  
Vol 52 (5) ◽  
pp. 1-4 ◽  
Author(s):  
Ryu Watakabe ◽  
Masaya Tanaka ◽  
Yasuhito Takahashi ◽  
Koji Fujiwara ◽  
Yoshiyuki Ishihara ◽  
...  
Keyword(s):  
Magnetic Property ◽  
Measurement Method ◽  
Round Robin ◽  
Test Results ◽  
Round Robin Test ◽  
Standard Measurement

scholarly journals SPECIFICITY OF MODERN PSYCHOLOGICAL METHODS AND ORGANIZATION OF RESEARCH OF PERSONALITY PERFECTIONISM

2020 ◽  
pp. 127-138
Author(s):  
O. I. Kononenko
Keyword(s):  
Empirical Study ◽  
Psychological Research ◽  
Test Results ◽  
Scientific Validity ◽  
Basic Principles ◽  
Psychological Property ◽  
Psychological Structure ◽  
Comprehensive Diagnosis ◽  
Conducting Research ◽  
The Individual

The article analyzes and describes the specifics of modern psychological methods of studying the perfectionism of the individual. The article proves that the leading criterion for creating the concept of perfectionism is the multidimensionality of its psychological structure, which allowed to create a differentiation of types of perfectionism. Organizing and conducting research on perfectionism as a complex and ambiguous phenomenon for modern psychological science requires careful theoretical and methodological and methodological training. In this process, the study was conducted based on the provisions of systemic, structuralfunctional, acmeological and integrative-differential approaches. The purpose — to highlight the specifics of modern psychological methods and the organization of the study of personality perfectionism. The organization and conduct of an empirical study of personality perfectionism was based on the following basic principles of psychological research: scientific validity of methods, non-harm, objectivity of conclusions from test results, the effectiveness of the proposed recommendations and the principle of comprehensive diagnosis. The organization and conduct of an empirical study of personality perfectionism was based on the following basic principles of psychological research: scientific validity of methods, non-harm, objectivity of conclusions from test results, the effectiveness of the proposed recommendations and the principle of comprehensive diagnosis. The main criterion for creating the concept of perfectionism is the multidimensionality of its psychological structure, which allows to approach its study as a psychological property, which in the structure of personality has a relative functional and structural independence and is expressed in the desire of the subject to be perfect, perfect anywhere. The study of the structure of perfectionism and its predictors should take place in compliance with the basic requirements for modern psychological research.

Research on Quick Measurement Method for the Flow Moisture Point of Shipping Liquefiable Solid Bulk Cargoes

2014 ◽  
Vol 587-589 ◽  
pp. 1776-1779
Author(s):  
Long Jun He ◽  
Yan Wei ◽  
Min Yan Liu ◽  
Hai Zhu Fan ◽  
Hui Lin Ge ◽  
...  
Keyword(s):  
Measurement Method ◽  
Soil Test ◽  
Test Results ◽  
Plastic Limit ◽  
Combined Method ◽  
Accident Probability ◽  
Flow Table ◽  
Quick Measurement ◽  
Property Losses ◽  
Solid Bulk

Along with the development of economy in our country, the category of the shipping liquefiable solid bulk cargoes is changing, and the volume of transport by ship is increasing. However, lots of accidents on shipping liquefiable solid bulk cargoes occurred in recent years, causing heavy casualties and property losses. To reduce the accident probability, the paper creatively introduces liquid-plastic limit combined method used in the soil test to the quick measurement of the flow moisture point before shipment. By comparing the test results of this method with the flow table method’s, the paper demonstrates the feasibility of this method for the quick measurement of the flow moisture point of shipping liquefiable solid bulk cargoes. Finally, the paper gives some relevant suggestions for subsequent research.

Sign in / Sign up

Export Citation Format

Share Document