Cable

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OBJECT TYPE
power supply
DATE
Unknown
ARTIFACT NUMBER
2008.1877.004
MANUFACTURER
Amphenol Canada
MODEL
Unknown
LOCATION
Canada

More Information


General Information

Serial #
N/A
Part Number
4
Total Parts
6
AKA
BNC cable
Patents
N/A
General Description
An artifact made of metal and synthetic material/Un objet fait avec du matériel en métal et des composantes synthétiques.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length
21.6 cm
Width
16.5 cm
Height
4.1 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Physics
Category
Electricity
Sub-Category
N/A

Manufacturer

AKA
Amphenol
Country
Canada
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Ontario
Period
1967-1990s
Canada
The vacuum Ebert spectrograph, developed by Donald A. Ramsey at the NRC, was a central instrument in Canada’s contributions to spectroscopy from approximately 1950 to the 1990s. Lead by Nobel Laureate, Gerhard Herzberg, Canada was a leader in this part of physics in the post WWII era. Using this device, D.A. Ramsey and Barry Lutz were able to confirm that the Kuiper bands of Uranus were made of methane. This finding had eluded scientists since the early days of astrophysics. Ramsey, a gifted experimenter, was able to produce this extremely high-resolution spectrograph, in order to determine the origins of the bands in the laboratory. The laboratory findings were compared with Lutz’s observations and measurements of the Uranus bands. The measurements were based on observations taken at the Mount Hamilton Station of the Lick Observatory, California. Le spectrographe Ebert avec une pression à vide était conçu au NRC par Donald A. Ramsey. L'instrument était primordial pour que le Canada puisse contribuer au domaine de spectroscopie pour plus de quarante ans entre 1950 et les années 1990s. La recherche était menée par Gerhard Herzberg qui était un lauréat pour le prix Nobel. Canada est rapidement devenu le meneur dans ce domaine de la physique après la deuxième Guerre Mondial avec Herzberg en charge. M. Ramsey et Barry Lutz ont réussit à confirmer que les bandes Kuipers de l'Uranus sont faits en méthane en utilisant cette machine. La découverte échappait aux scientifiques depuis l'enfance de l'astrophysique. Ramsey était capable de produire ce spectrographe à haute résolution pour déterminer l'origine des bandes au laboratoire. Le scientifique a pu comparer ces résultats avec ceux de Lutz. Les deux séries de mesurément étaient pris à la station de Mont Hamilton a l'observatoire Lick en Californie.
Function
This artifact could have been a spare cable. This object could have been used to help various components of the Ramsey or Ebert spectrograph such as the power supply. Cet artefact était peut-être un câble supplémentaire. Ce câble était possiblement utilisé pour faciliter les tâches de plusieurs composantes du spectrographe Ramsey ou Ebert tout comme le bloc d'alimentation.
Technical
This type of spectrograph dates back to the work of Hermann Ebert in 1889. He developed a spectrometer that consisted of an entrance slit, a single concave spherical mirror, a diffraction grating, and a small photographic plate in the plane of the entrance slit. This artifact is a Ramsey spectrograph, a 33-meter multiple-path cell, that produced spectra of the highest resolution at the time. The main body of this spectrograph was made by Fleck Industries before being installed at the NRC. Despite difficult struggles with leaks in the early construction phase of the optical components, large leak detectors (as big as fridges at the time) were installed and used to locate and fix the leaks. The resultant vacuum conditions allowed for much longer exposures and more precise images. This instrument was also a success due to its optics. The initial resolution of the instrument was not as good as expected, and a new mirror had to be ground and installed. The resolution improved significantly. There were also two gratings in this model, one high and the other low resolution. Ce genre de spectrographe est inspiré par le travail de Hermann Ebert en 1889. Il a développé un spectromètre qui possédait une fente d'entrée, un miroir concave et sphérique, un réseau de diffraction et une plaque photographique située sur le plan de la fente d'entrée. Cet artefact est un spectrographe Ramsey qui possède un trajet-multiple de plus de trente-trois mètres qui produisaient une résolution de la plus haute qualité de sa génération. Le corps du spectrographe était fabriqué par Fleck Industries. Malgré les fuites au début de la phase de construction des composantes optiques, l'installation des détecteurs de fuites installer par la suite ont réussi à trouver et arrêter le déluge. Les conditions après l'installation a construit des conditions de pression à vide qui permettait à la machine de développer des images plus précises avec une exposition prolongée. L'instrument était aussi favori grâce à ces composantes optiques. La résolution initiale n'était pas une haute gamme et donc un nouveau miroir a dû être dépoli et installer. Ceci a augmenté la résolution a un niveau requis. Il y avait aussi deux genres de réseau qui accompagnaient ce modèle qui permettait à une résolution base ou celui qui apportait une résolution plus augmentée.
Area Notes
Unknown

Details

Markings
On the longer adapter head/Sur la tête adaptatrice qui est plus long:"AMPHENOL 29700, On the side of the cable/Sur le côté du câble:"o3554 AMPHENOL CANADA RG 587U",On the shorter adapter head/Sur la tête adaptatrice qui est plus courte:"U3554 M2332873-01-03".
Missing
Artifact appears complete/L'objet a toutes les pièces.
Finish
This artifact has a cable made of black synthetic material. Blue markings are visible on the body of the cable. Two identical adapter heads made of silver metal are located at the ends of the artifact. They are cylindrical in shape and rotate. Inside the adapter heads is a white synthetic liner along with a metal pin. On the outside of the heads are markings that are engraved around the circumference of the adapters. Un artefact qui possède un câble synthétique de couleur noire. Il y a un lettrage bleu sur le côté du câble. Deux adaptateurs identiques ont des têtes en métal de couleur argent. Les têtes occupent chacun un bord de l'artefact. Ils ont des numéros de séries gravé sur la circonférence de leur tête. Les têtes sont construits en formes cylindriques et ont une manche synthétique à l'intérieur ainsi qu'une tige en métal.
Decoration
N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Amphenol Canada, Cable, Unknown Date, Artifact no. 2008.1877, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/2008.1877.004/

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