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Titre : Instruments topographiques : description, réglage, emploi Type de document : Guide/Manuel Auteurs : Félix Ollivier, Auteur Editeur : Paris : Eyrolles Année de publication : 1955 Importance : 809 p. Format : 16 x 25 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Topographie
[Termes IGN] cercle horizontal
[Termes IGN] cercle vertical
[Termes IGN] clisimètre
[Termes IGN] déclinatoire
[Termes IGN] éclimètre
[Termes IGN] erreur aléatoire
[Termes IGN] erreur systématique
[Termes IGN] goniographe
[Termes IGN] goniomètre
[Termes IGN] instrument de topographie
[Termes IGN] instrumentation Kern
[Termes IGN] instrumentation Wild
[Termes IGN] instrumentation Zeiss
[Termes IGN] lunette topographique
[Termes IGN] mire de nivellement
[Termes IGN] niveau à bulle
[Termes IGN] niveau à lunette
[Termes IGN] nivellement barométrique
[Termes IGN] nivellement direct
[Termes IGN] nivellement indirect
[Termes IGN] projection
[Termes IGN] tachéomètre
[Termes IGN] théodoliteIndex. décimale : 32.03 Instruments de topographie Numéro de notice : 37097 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Manuel Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=47440 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 37097-01 32.03 Livre Centre de documentation Topographie Disponible
Titre : International Streckenmesskurse in München : ausgewählte Vortrage über neuere Entwicklungen geodätischer Instrumente und Fortschritte in der optischen Streckenmessung Titre original : [Cours international de mesure de distances à Munich : conférences sur les nouveaux instruments géodésiques et les progrès dans la mesure optique de distances] Type de document : Guide/Manuel Auteurs : Max Kneissl, Auteur Editeur : Goslar : Wittke (M.) Année de publication : 1955 Importance : 220 p. Format : 15 x 21 cm Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie
[Termes IGN] instrument de géodésie
[Termes IGN] mesurage de distancesIndex. décimale : 30.03 Instruments de géodésie Numéro de notice : 39141 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Manuel Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=47500 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 39141-01 30.03 Livre Centre de documentation En réserve M-103 Disponible
Titre : Optische streckenmessung und polygonierung Titre original : [Mesurage optique de distances et polygonation] Type de document : Monographie Auteurs : O. Von Gruber, Auteur ; Gustav Förstner, Auteur Mention d'édition : 2 Editeur : Karlsruhe, Heidelberg, ... : Wichmann Année de publication : 1955 Collection : Sammlung Wichmann num. 11 Importance : 202 p. Format : 17 x 25 cm Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie
[Termes IGN] instrument d'optique
[Termes IGN] mesurage de distances
[Termes IGN] polygonation
[Termes IGN] tachéomètreIndex. décimale : 30.03 Instruments de géodésie Numéro de notice : 35012 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63731 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 35012-01 30.03 Livre Centre de documentation En réserve M-103 Disponible The equatorial Nile project and its effects in the anglo-egyptian Sudan, being the report of the Jonglei investigation team, 4. Volume 4, Maps and diagrams / Republic of Sudan (1955)
Titre de série : The equatorial Nile project and its effects in the anglo-egyptian Sudan, being the report of the Jonglei investigation team, 4 Titre : Volume 4, Maps and diagrams Type de document : Monographie Auteurs : Republic of Sudan, Auteur ; Jonglei investigation team, Auteur Editeur : Republic of Sudan Année de publication : 1955 Format : 20 x 32 cm + carte Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géographie mondiale
[Termes IGN] carte
[Termes IGN] Nil (fleuve)
[Termes IGN] Soudan
[Termes IGN] vingtième siècleNuméro de notice : 37006E Affiliation des auteurs : non IGN Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=57444 Voir aussi
- The equatorial Nile project and its effects in the anglo-egyptian Sudan, being the report of the Jonglei investigation team, 1. Volume 1, Introduction and summary / Republic of Sudan (1955)
- The equatorial Nile project and its effects in the anglo-egyptian Sudan, being the report of the Jonglei investigation team, 2-1. Volume 2, Survey of the area affected / Republic of Sudan (1955)
- The equatorial Nile project and its effects in the anglo-egyptian Sudan, being the report of the Jonglei investigation team, 2-2. Volume 2, The equatorial Nile project : its effets and the remedies / Republic of Sudan (1955)
- The equatorial Nile project and its effects in the anglo-egyptian Sudan, being the report of the Jonglei investigation team, 3. Volume 3, Special investigations and experimental data / Republic of Sudan (1955)
- The equatorial Nile project and its effects in the anglo-egyptian Sudan: being the report of the jonglei investigation team, 5. Index / Sudan government (1955)
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Code-barres Cote Support Localisation Section Disponibilité 37006-01E 60.58 Livre Centre de documentation En réserve M-103 Disponible
Titre : Über die Exzentrizität von Teilkreisen Titre original : [Sur l'excentricité du Cercle gradué] Type de document : Thèse/HDR Auteurs : G. Schell, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1955 Collection : DGK - C Sous-collection : Dissertationen num. 015 Importance : 90 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie
[Termes IGN] cercle horizontalIndex. décimale : 30.03 Instruments de géodésie Résumé : (Auteur) In the present paper the author has undertaken to study the influence of eccentricity hitherto only occasionally dealt with in publications, and particularly to investigate to what extent the procedure applied in modern instrument production of renouncing the second reading point with small sized instruments, may be permissible with regard to its lesser precision.
Assuming that the centre of rotation of the horizontal limb does not coincide with the geo-metrically defined centre of graduation nor with the centre of rotation of the alidade, a derivation of general validity is established regarding the effective eccentricity as a function of the alidade direction and the position of the circle.
Beside a description of the general measuring arrangement for the horizontal circle the author shows and explains by a numerical example that it is possible to unequivocally determine the vectors of eccentricity by inverting the values of measurement, as resulting from the investigating procedure with axis strain in theodolites realized by Rannie and Dennis. He compares the very clear graphical adjustment with a strictly numerical procedure and an approximate solution resulting directly from the measuring scheme of Rannie and Dennis.
Experiments with several instruments have shown, that the eccentricity between the center of rotation of the limb and the centre of the graduation circle was greater than the eccentricity between the rotation centres of alidade and circle. Hence follows that the position of the circle does influence the eccentricity-error to the same degree as the alidade direction itself. Therefore the observation by half rounds must be avoided, as possible, with all instruments provided with only one reading place. The influence of errors due to eccentricity, occurring with observations by half rounds is shown by a numerical example.
When checking instruments it was hitherto customary to indicate but one value depending on the alidade direction. But this single value is not sufficient for determination of the conditions of eccentricity. For this purpose two values will be necessary: the vector of eccentricity between the rotation centres of alidade and limb, and moreover the vector of eccentricity between centre of rotation of the limb and centre of the graduation circle.
The author shows that a second, diametrical reading place is indispensable with measurements of vertical angles, since the influences of eccentricity in contradiction to the measurement of horizontal angles are not eliminated by observing in both the telescope positions. Starting from the general equation of eccentricity established in the first part, the author derives formulae, pertaining to the different systems of numbering and giving a relation between the inclination of the axis of collimation and the residual error due to eccentricity. From these formulae follows that the error in reading due to eccentricity becomes a maximum particularly with approximately horizontal vision. Moreover the author treats the variation of the index error, due to eccentricity and depending on the inclination of the axis of collimation. This study proves that the effective eccentricity, with respect to its influence on vertical angles and index errors, is defined by the appropriate orthogonal components of the linear eccentricity. Several measuring procedures applicable to determine the important parameters of eccentricity are examined and critically compared with each other. Thereby it is shown that considerable instrumental requirements are necessary for an exact investigation. In many cases the short distances have to be excluded from measurement of eccentricity-errors, because a superposition with three other sources of error would arise thereby. By means of examples the procedures applied are. explained in detail, and the errors due to eccentricity are demonstrated numerically.
If the variation in position of the spindle with respect to its shell, caused by the free play of axis, is also considered, the necessity of providing a diametrically opposed reading point will result to a still higher degree than with the pure errors due to eccentricity. When treating the errors due to axial run there is a difference occurring between systematic portions i. e. which may be defined analytically and accidental irregularities in axial running, caused by a shaky motion of the spindle in its shell. Regarding the systematic motion of the axis the author assumes a hypo-cycloidal rolling in its bearing with the vertical axis, and a uniform lifting out of its bearings with the transverse axis. These reflections prove that with instruments having only one reading place the direction, even when observed in two positions of the telescope, still involves systematic axial defects in the form of apparent eccentricity-errors, whereas the zenith distance observed in two positions of the telescope is free from such influences. The irregular axial defects influence both the direction and inclination measurements. The means taken from diametrically opposed readings are free from systematic and accidental errors due to axial run. The eccentricity-errors due to the free play of the axis are demonstrated qualitatively with two instruments with respect to both the horizontal and vertical circles. Hence follows that the amount of these errors exceeds the magnitude of errors due to defects of circle graduation. With instruments having only one reading place it is a damage that the eccentricity-errors due to irregular axial run cannot be controlled.
In conclusion, the author generally states that instruments without a second reading device in many cases do not profit by the accuracy obtainable in pointing and reading-off.Numéro de notice : 37446 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63764 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 37446-01 30.03 Livre Centre de documentation En réserve M-103 Disponible PermalinkPermalinkCompte-rendu officiel du 9ème Congrès International des Géomètres, Scheveningen & Delft, Pays-Bas / Fédération internationale des géomètres (1954)
PermalinkPermalinkEtude comparative des dimensions et des orientations de la triangulation primordiale de la France dans le système de la nouvelle triangulation et celui de la compensation européenne de 1950-1951 / Michel Dupuy (1954)
PermalinkPermalinkPermalinkPermalinkInsructions et formules pour la fabrication de cartes en relief sur feuilles plastiques / Service des cartes en relief (1954)
PermalinkInstruction concernant les levés de plans et profils d'obstacles d'aérodrome par méthode topographique / IGN (1954)
PermalinkPermalinkPermalinkNotice sur la description et le montage de l'échelle légère de reconnaissance dite "échelle Delooz" / IGN (1954)
PermalinkNotice sur l'emploi de la carte spéciale de navigation "Atlantique Nord", en projection gnomonique et des abaques annexes / Michel Dupuy (1954)
PermalinkPhotographische Registrierung der Erdgezeiten mit einem Gravimeter ; Beitrag zur Libellenprüfung / R. Brein (1954)
PermalinkProceedings of the 7th International Congress of Photogrammetry / American society of photogrammetry (1954)
PermalinkTraité de géodésie, 1. Tome 1, Triangulations, fascicules 1 et 2 les fondements mathématiques de la géodésie, opérations sur le terrain, calcul de la triangulation / Pierre Tardi (1954)
PermalinkPermalinkPermalinkL'évolution récente des matériels et procédés chronométriques utilisés à l'Institut Géographique National / Jean Cruset (13/06/1953)
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