Structure and algorithm for a specialized measuring and computing arrangement to check electronic counting frequency meters

1984 ◽  
Vol 27 (4) ◽  
pp. 383-385
Author(s):  
B. I. Shvetskii ◽  
Yu. A. Narezhnyi
Keyword(s):  
Specialized Measuring ◽  
Electronic Counting

A New System For Optomanual Semiautomatic Quantitative Image Analysis

1977 ◽  
Vol 35 ◽  
pp. 210-211
Author(s):  
H.P. Rohr
Keyword(s):  
Image Analysis ◽  
Volume Density ◽  
List Type ◽  
Distribution Analysis ◽  
Type Number ◽  
Point Counting ◽  
Human Eye ◽  
Quantitative Image ◽  
Point Density ◽  
Electronic Counting

Today, in image analysis the broadest possible rationalization and economization have become desirable. Basically, there are two approaches for image analysis: The image analysis through the so-called scanning methods which are usually performed without the human eye and the systems of optical semiautomatic analysis completely relying on the human eye.The new MOP AM 01 opto-manual system (fig.) represents one of the very promising approaches in this field. The instrument consists of an electronic counting and storing unit, which incorporates a microprocessor and a keyboard for choice of measuring parameters, well designed for easy use.Using the MOP AM 01 there are three possibilities of image analysis:the manual point counting,the opto-manual point counting andthe measurement of absolute areas and/or length (size distribution analysis included).To determine a point density for the calculation of the corresponding volume density the intercepts lying within the structure are scanned with the light pen.

Method for Error Removal of Intelligent Electronic Counting Instruments

2010 ◽  
Vol 43 ◽  
pp. 127-131
Author(s):  
Zhen Liang Li ◽  
Jun Gang Fan ◽  
Ya Li
Keyword(s):  
Software System ◽  
Error Removal ◽  
Electronic Counting

In this paper, a method is introduced to remove the counting errors of electronic counting instruments, which contains two aspects to remove the errors caused by outside interference and to remove the counting errors caused by quality error of the object respectively. Counting errors of object can be removed effectively by program of software system. As a result, it’s proven to be effective and stable by applying it into practice.

scholarly journals Investigation of Thermophysical Properties of Three Barrel Steels

Metals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 573 ◽  
Author(s):  
Piotr Koniorczyk ◽  
Janusz Zmywaczyk ◽  
Andrzej Dębski ◽  
Mateusz Zieliński ◽  
Marek Preiskorn ◽  
...  
Keyword(s):  
Phase Transition ◽  
Thermal Diffusivity ◽  
Specific Heat ◽  
Room Temperature ◽  
Light Flash ◽  
Austenite Phase ◽  
Inconel 600 ◽  
Duplex Steel ◽  
Heat Capacity Measurements ◽  
Specialized Measuring

In this paper, thermal diffusivity and heat capacity measurements were performed for three types of barrel steel, 38HMJ (1.8509), 30HN2MFA, and duplex (1.4462). Thermal diffusivity tests as a function of temperature were performed in the range of room temperature (RT) to 500 °C, and specific heat in the range of RT to 1000 °C. All tests were carried out using NETZSCH specialized measuring stands: LFA 467 light flash apparatus and DSC 404 F1 Pegasus differential scanning calorimeter. In the measurements of thermal diffusivity, the reference material Inconel 600 was used. This made it possible to determine thermal conductivity and specific heat as a function of the temperature of barrel steel. The results of specific heat tests of the 38HMJ and the 30HN2MFA steels show a ferrite–austenite phase transition in the 750–810 °C temperature range. This transition was not observed in the duplex steel.

A Method for Determination of the Minimal Thickness of the Cutting Layer during Precision Machining Performed with the Indexable Cutting Tools

2017 ◽  
Vol 261 ◽  
pp. 50-57 ◽  
Author(s):  
Joanna Krajewska-Śpiewak ◽  
Józef Gawlik
Keyword(s):  
Acoustic Emission ◽  
Elastic Waves ◽  
Measuring Equipment ◽  
Cutting Tools ◽  
Precision Machining ◽  
Peripheral Milling ◽  
Minimal Thickness ◽  
Nickel Based Alloy ◽  
Specialized Measuring

Under the influence of the pressure caused by the application of the cutting edge on the surface of the workpiece elastic waves are generated. Waves propagate in the material in every possible direction and can be identify by specialized measuring equipment. Acoustic emission phenomenon was used to determine the beginning of decohesion process. The article presents a new method for determination of the decohesion process during peripheral milling performed with the indexable cutting tools on samples made out of titanium based alloy and nickel based alloy.

scholarly journals Study of the fire dynamics in a burning car and analysis of the possibilities for transfer of fire to a nearby vehicle

2019 ◽  
Vol 112 ◽  
pp. 01015 ◽  
Author(s):  
Angel Terziev
Keyword(s):  
Heat Transfer ◽  
Temperature Field ◽  
Infrared Camera ◽  
Heat Transfer Process ◽  
Engine Compartment ◽  
Fire Dynamics ◽  
Scale Experiment ◽  
Clear Change ◽  
Specialized Measuring ◽  
Ignition Zone

A full scale experiment was carried out on the process of vehicle combustion and the ignition of an adjacent one. For this purpose, specialized measuring equipment (thermocouples and infrared camera) is used to determine the temperature field of the burning car and nearby vehicle. The burning car has 16 thermocouples mounted on it and one thermocouple mounted on the adjacent car in order to examine the heat transfer process. The temperature field between cars at different points of time is detected by an infrared camera, with a clear change in the temperature gradient in the presence of wind. It is one of the main reasons for the increased momentum of heat transfer. The research shows that with the available combustible load of the car (2,1 MW or around the average for the currently produced cars), the ignition of the neighbouring vehicle is expected around 14 minutes after the ignition of the main vehicle, with the ignition zone being in the engine compartment. Important information was obtained for both the dynamics of the burning vehicle and the temperature field between the two cars.

Evaluation of the number of spermatozoa in bull semen. A comparison between electronic counting, light scattering and absorptiometry

1964 ◽  
Vol 62 (2) ◽  
pp. 219-223 ◽  
Author(s):  
Simon Iversen
Keyword(s):  
Light Scattering ◽  
Indirect Methods ◽  
Bull Semen ◽  
Electronic Counting

The number of spermatozoa in bull semen was determined by electronic counting, light scattering and absorptiometry. Electronic counting was found to be accurate, fast and reliable and seems to be the method of choice.Determination of the light scattering was found to be the more sensitive of the indirect methods, but absorptiometry also yields consistent and reliable results. The accuracy obtained by absorptiometry was found to be independent of the sensitivity of the instrument.

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