Dial Instrument Calibration by both Automatic and Half-Automatic Methods

2012 ◽  
Vol 157-158 ◽  
pp. 581-588
Author(s):  
Zhen Long Bai ◽  
Xiang Li

This paper presents a calibration system by video processing technique. The system can calibrate large number of different types of dial instruments. The system is composed of an automatic recog-nition approach and a half-automatic approach. Both the automatic calibration and half-automatic calibration include four steps: 1st, dial plane circle edge extraction and center identification; 2nd, pointer extraction; 3rd, scale start and end position identification; 4th, result reading. For half-automatic method, the 1st step and 3rd step are manually indentified. By experiments and practical application in industry, it proves that our calibration system is effective for more than hundreds of different types of dial instruments.

MAPAN ◽  
2021 ◽  
Author(s):  
Jintao Wang ◽  
Xiang Liu ◽  
Wencai Shi ◽  
Changhong Xu

AbstractHydrometers are widely used in industry for liquid density measurement. It is important to achieve rapid and high accuracy calibration for hydrometers. Based on the Archimedes principle, a fully automatic hydrometer calibration system in NIM was designed using Cuckow’s method. The liquid density of n-tridecane (C13H28)is calibrated with 441 g high-purity fused silica ring as the solid density standard. The buoyancy of hydrometer is measured by static weighing system with resolution 0.01 mg. The alignment between liquid surface and hydrometer scale was achieved by the lifting platform with the positioning accuracy of 10 μm. According to the weighing value of hydrometer in air and liquid, the density correction value at different scales is calculated. Hydrometer covering a full range (650–1500) kg/m3can be calibrated without changing the liquid. Taking the calibration data of PTB as reference, the experimental data show that the measurement uncertainty of this system is better than 0.3 division (k = 2).


2021 ◽  
Vol 3 (3) ◽  
pp. 426-431
Author(s):  
Destri Siti Juleha ◽  
Deviani Utami ◽  
Ade Utia Detty

ABSTRACTBackground: Erythrocytes Sedimentation Rate (ESR) is a test to determine the rate of erythrocytes settling blood containing anticoagulants in a vertical tube within a certain time. ESR is generally used to check and monitor for tissue damage, inflammation and indicate disease. ESR examination can be done by manual and automatic methods. LED levels in pulmonary TB patients generally have increased.Objectives: Knowing the difference in the measurement results of the erythrocytes sedimentation rate (ESR) between the Westergen manual and automatic methods in patients with pulmonary tuberculosis.Methods: Laboratory experiments with a post-test-only approach. The number of samples was 30 people and was taken by purposive sampling. The research data were obtained from the results of the ESR examination using the Westergren manual and automatic methods. Results: Examination of the sedimentation rate of healthy respondents used the Westergren method had an average of 9,40 mm/hour while in the automatic method 10,15 mm/hour. The examination of sedimentation rate of pulmonary tuberculosis respondents with the Westergren method had an average of 66,13mm/hour, while the Automatic method was 67,80 mm/hour. There was no significant difference in the mean value of ESR between the measurement method used manual Westergren and Automatic methods in patients with pulmonary tuberculosis ( p = 0,878).   Conclusion: There is no significant difference in the mean value of ESR between measurements using the manual Westergren method and automatic in patients with pulmonary tuberculosis. Keywords: Erythrocytes Sedimentation Rate, Method, Westergren, Automatic  PERBANDINGAN NILAI LAJU ENDAP DARAH ANTARA PENGUKURAN METODE MANUAL WESTERGREN DAN ALAT AUTOMATIK PADA SAMPEL DARAH SITRAT PENDERITA TB PARU DI RSUD. Dr. DRADJAT PRAWIRANEGARA SERANG TAHUN 2020 Latar Belakang: Laju Endap Darah (LED) adalah pemeriksaan untuk menentukan kecepatan eritrosit mengendap dalam darah yang berisi antikoagulan pada suatu tabung vertikal dalam waktu tertentu. LED pada umumnya digunakan untuk mendeteksi dan memantau adanya kerusakan jaringan, inflamasi dan menunjukan adanya penyakit. Pemeriksaan LED dapat dilakukan dengan metode manual dan automatik. Kadar LED pada penderita TB Paru umumnya mengalami peningkatan.Tujuan: Mengetahui perbedaan hasil pengukuran Laju Endap Darah (LED) antara metode manual Westergen dan Automatik pada Penderita TB Paru. Metodologi: Eksperimen laboratorik dengan pendekatan post test only. Jumlah sampel 30 orang dan diambil dengan purposive sampling. Data penelitian diperoleh dari hasil pemeriksaan LED menggunakan metode manual Westergren dan Automatik.  Hasil: Pemeriksaan Laju Endap Darah pada responden sehat metode Westergren memiliki rata-rata 9,40 mm/jam sedangkan pada metode Automatik 10,15 mm/jam. Pemeriksaan Laju Endap Darah pada responden TB Paru metode Westergren memiliki rata-rata 66,13 mm/jam sedangkan pada metode Automatik 67,80 mm/jam. Tidak terdapat perbedaan rata-rata nilai LED yang signifikan antara pengukuran menggunakan metode manual Westergren dan Automatik pada penderita TB Paru (p = 0,878). Kesimpulan: Tidak terdapat perbedaan rata-rata nilai LED yang signifikan antara pengukuran menggunakan metode manual Westergren dan Automatik pada penderita TB Paru.Kata kunci: Laju Endap Darah, Metode, Westergren, Automatik


Respect is one of the central concepts in contemporary moral thought. It plays a prominent role in everyday, pre-philosophical moral thinking, as well as in recent moral theory and applied ethics. Yet basic questions about the concept and role of respect have received less attention than might be expected. This volume takes up some of these basic questions. The book is not meant to be a comprehensive handbook that covers all aspects of the topic of respect, nor is the focus of the book mainly historical. Rather, the aim is to give leading experts in the field a chance to present their latest ideas and point the research on respect in new directions. Following an introductory historical essay, Part I addresses questions of what respect is, its nature and basis. Part II examines questions in moral theory, for example what exactly ought to be respected, what role respect plays in morality, and which different types of respect are appropriate and morally significant. Part III deals with the practical application of requirements of respect. The essays in this volume will be of interest both to scholars and students working on issues of respect and to anyone interested in this central moral notion.


Author(s):  
Never Mujere

Research is aimed at the discovery and interpretation of facts, revision of accepted theories or laws in the light of new facts or practical application of such new or revised theories or laws. A sample provides needed information about the population quickly. However, there is no guarantee that any sample will be precisely representative of the population from which it comes. It is cheaper to observe a part rather than the whole. This chapter is a discussion on sampling in research and it is mainly designed to equip researchers with knowledge of the general issues to consider when sampling. The purpose of sampling in research, dangers of sampling and how to minimize them, types of sampling and guides for deciding the sample size are discussed. For a clear flow of ideas, a few definitions of the terms used are given. They highlight the types and methods of sampling, sampling errors and discusses techniques of sample size determination. Different types of sampling technique, how to carry them out, and their advantages and disadvantages are also introduced.


Author(s):  
Bo-Lin Jian ◽  
Chi-Shiuan Tsai ◽  
Ying-Che Kuo ◽  
Yu-Sying Guo

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