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Radioactive apparatus for measuring the thickness of hot sheet-metal; Jauge d'epaisseur radioactive pour la mesure a chaud de plaques metalliques; Radioaktivnyj izmeritel' tolshchiny goryachego listovogo prokata; Calibrador radiactivo para la medicion en caliente de chapas

Conference:

Abstract

In order to achieve a high precision of measurement under rolling conditions, a dynamic method of compensation was chosen, by which the comparison parameter moves through all the values in the range of measurement, whereas the zero component designates only the moment when the measured parameter and the comparison parameter are equal. This method eliminates the mechanical return communications and variable displacements of the static-compensation method, and gives an instrument which is both sufficiently accurate and operates with sufficient speed in the complicated process of rolling. The basic design of the instrument, for checking the thickness of the sheet during the rolling process is described and the factors affecting the accuracy of measurement of a sheet (temperature, undulation, superficial moisture, composition of the sheet, and its position on the roller train) are discussed. The construction of an experimental instrument for industrial use over a thickness range of 14-44 mm is also described. The industrial tests carried out with the instrument showed that, with a Cs{sup 137} source of activity equivalent to 9.2 g radium, the accuracy of measurement of the thickness of hot sheet within the specified range is {+-}0.1 mm. The instrument's operating speed is one measurement per second.  More>>
Publication Date:
Jan 15, 1962
Product Type:
Conference
Resource Relation:
Conference: Conference on the Use of Radioisotopes in the Physical Sciences and Industry, Copenhagen (Denmark), 6-17 Sep 1960; Related Information: In: Radioisotopes in the Physical Sciences and Industry. Proceedings of the Conference on the Use of Radioisotopes in the Physical Sciences and Industry. V. II| 566 p.
Subject:
07 ISOTOPES AND RADIATION SOURCES; ACCURACY; CESIUM 137; EQUIPMENT; RADIUM; SHEETS; THICKNESS
OSTI ID:
22025663
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); United Nations Educational, Scientific and Cultural Organization, Paris (France)
Country of Origin:
IAEA
Language:
Russian
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12N1679112956
Submitting Site:
INIS
Size:
page(s) 93-107
Announcement Date:
Jan 17, 2013

Conference:

Citation Formats

Vasichev, B N, Latyshev, V K, Pliskin, Yu S, and Felinger, A K. Radioactive apparatus for measuring the thickness of hot sheet-metal; Jauge d'epaisseur radioactive pour la mesure a chaud de plaques metalliques; Radioaktivnyj izmeritel' tolshchiny goryachego listovogo prokata; Calibrador radiactivo para la medicion en caliente de chapas. IAEA: N. p., 1962. Web.
Vasichev, B N, Latyshev, V K, Pliskin, Yu S, & Felinger, A K. Radioactive apparatus for measuring the thickness of hot sheet-metal; Jauge d'epaisseur radioactive pour la mesure a chaud de plaques metalliques; Radioaktivnyj izmeritel' tolshchiny goryachego listovogo prokata; Calibrador radiactivo para la medicion en caliente de chapas. IAEA.
Vasichev, B N, Latyshev, V K, Pliskin, Yu S, and Felinger, A K. 1962. "Radioactive apparatus for measuring the thickness of hot sheet-metal; Jauge d'epaisseur radioactive pour la mesure a chaud de plaques metalliques; Radioaktivnyj izmeritel' tolshchiny goryachego listovogo prokata; Calibrador radiactivo para la medicion en caliente de chapas." IAEA.
@misc{etde_22025663,
title = {Radioactive apparatus for measuring the thickness of hot sheet-metal; Jauge d'epaisseur radioactive pour la mesure a chaud de plaques metalliques; Radioaktivnyj izmeritel' tolshchiny goryachego listovogo prokata; Calibrador radiactivo para la medicion en caliente de chapas}
author = {Vasichev, B N, Latyshev, V K, Pliskin, Yu S, and Felinger, A K}
abstractNote = {In order to achieve a high precision of measurement under rolling conditions, a dynamic method of compensation was chosen, by which the comparison parameter moves through all the values in the range of measurement, whereas the zero component designates only the moment when the measured parameter and the comparison parameter are equal. This method eliminates the mechanical return communications and variable displacements of the static-compensation method, and gives an instrument which is both sufficiently accurate and operates with sufficient speed in the complicated process of rolling. The basic design of the instrument, for checking the thickness of the sheet during the rolling process is described and the factors affecting the accuracy of measurement of a sheet (temperature, undulation, superficial moisture, composition of the sheet, and its position on the roller train) are discussed. The construction of an experimental instrument for industrial use over a thickness range of 14-44 mm is also described. The industrial tests carried out with the instrument showed that, with a Cs{sup 137} source of activity equivalent to 9.2 g radium, the accuracy of measurement of the thickness of hot sheet within the specified range is {+-}0.1 mm. The instrument's operating speed is one measurement per second. It works reliably under the conditions of the rolling mill. (author) [French] Pour obtenir une grande precision dans les mesures en cours de laminage, les auteurs ont choisi la methode dynamique de compensation, dans laquelle le parametre de comparaison passe par toutes les valeurs de la gamme de mesures, la composante zero designant uniquement le moment ou le parametre mesure et le parametre de comparaison sont egaux. Cette methode permet d'eliminer les systemes mecaniques de retour et les deplacements variables qui caracterisent la methode statique de compensation, et d'avoir un appareil a la fois suffisamment precis et d'un fonctionnement suffisamment rapide. Les auteurs exposent le plan fondamental de l'appareil permettant de controler l'epaisseur des feuilles au cours du laminage et examinent les facteurs dont depend la precision de la mesure a chaud de l'epaisseur des feuilles (temperature, ondulation, humidite superficielle, composition de la feuille et sa position sur le train de laminoirs). Ils decrivent egalement la construction d'un prototype a usage industriel pour me gamme d'epaisseurs allant de 14 a 44 mm. Les essais industriels faits avec l'appareil ont montre que, lors de l'emploi d'une source au {sup 137}Cs d'une activite equivalente a celle de 9,2 g de radium, la precision de la mesure a chaud de l'epaisseur des feuilles dans la gamme susmentionnee est de {+-} 0,1 mm. L'appareil effectue une mesure par seconde. Il fonctionne de facon satisfaisante eu egard aux conditions dans lesquelles il est utilise. (author) [Spanish] Para obtener una elevada exactitud en las condiciones de funcionamiento del tren de laminado se escogio un metodo dinamico en el que el parametro testigo barre todos los valores del intervalo a medir, en tanto que la componente cero indica solamente el momento en que el parametro medido y el parametro testigo son iguales. Este metodo elimina las retroacciones mecanicas y los desplazamientos variables del metodo de compensacion estatica, permite alcanzar la exactitud deseada y funciona con rapidez suficiente en las complejas condiciones del laminado. La memoria describe las caracteristicas fundamentales del aparato para comprobar el espesor de las chapas durante el laminado, y discute los factores que influyen en la exactitud de la medicion del espesor de chapas en caliente (temperatura, ondulacion, humedad superficial y composicion de la chapa, y su posicion en el tren de laminado). Describe tambien la construccion de un aparato experimental para la industria, destinado a medir espesores comprendidos entre 14 y 44 mm. Los ensayos industriales realizados con este aparato indican que con una fuente de {sup 137}Cs de actividad equivalente a la de 9,2 g de radio, es posible medir el espesor de chapas calientes del espesor mencionado con un margen de aproximacion de {+-} 0,1 mm. El aparato efectua las mediciones a razon de una por segundo y funciona satisfactoriamente en las condiciones que exigen las operaciones de laminado. (author) [Russian] Dlya polucheniya vysokoj tochnosti izmerenij v usloviyakh prokatnogo proizvodstva vybran dinamicheskij metod kompensatsii, pri kotorom parametr sravneniya prokhodit vse znacheniya v izmeryaemoj oblasti, a nul'-organ otmechaet lish' moment ravenstva izmeryaemogo parametra i parametra sravneniya. Ispol'zovanie ehtogo metoda dalo vozmozhnost' osvobodit'sya ot mekhanicheskikh obratnykh svyazej i peremennykh po svoemu kharakteru peremeshchenij, svojstvennykh metodu staticheskoj kompensatsii, i sozdat' pribor, udovletvoryayushchij kak trebovaniyam tochnosti, tak i bystrodejstviya v slozhnykh usloviyakh prokatnogo proizvodstva. V doklade izlagaetsya printsipial'naya skhema pribora dlya kontrolya tolshchiny lista v protsesse prokatki, rassmatrivayutsya faktory, vliyayushchie na tochnost' izmereniya tolshchiny goryachego lista (temperatura, volnistost', nalichie vody na poverkhnosti lista, material lista i ego polozhenie na rol'gange). Opisyvaetsya konstruktivnoe vypolnenie opytno-promyshlennogo obraztsa pribora na diapazone tolshchin ot 14 mm do 44 mm. Promyshlennye ispytaniya pribora pokazali, chto pri istochnike izlucheniya Cs{sup 137} aktivnost'yu 9,2 g-ehkv. radiya tochnost' izmereniya tolshchiny goryachego lista v ukazannom vyshe diapazone sostavlyaet {+-}0,1 mm. Bystrodejstvie pribora - odno izmerenie v sekundu. Pribor nadezhno rabotaet v usloviyakh prokatnogo tsekha. (author)}
place = {IAEA}
year = {1962}
month = {Jan}
}