Reflection galvanometer

Title

Reflection galvanometer

Subject

Electrical apparatus
Measuring instrument

Description

Model no. 89, no. 18. Box is 8 ¼ x 8 ½ x 12 inches and screwed closed. Unknown date but estimated around 1908. Used with the selenium cell photometer to measure current and with the photoelectric cell photometer. Visible in pictures of transit room. An unpublished photograph in the Jakob Kunz papers, University Archives, from the 1918 eclipse expedition shows this galvanometer sitting on a shelf in the background. A published picture from 1910 and another unpublished photo from 1912 show the same galvanometer.

Creator

Weston Electrical Instruments Company, New, New Jersey

Publisher

Astronomy Department, University of Illinois, Urbana, Illinois

Date

circa 1908

Contributor

Michael Svec

Rights

Copyright Michael Svec

Relation

Harvard Collection: http://waywiser.fas.harvard.edu/objects/2183/reflecting-galvanometer-with-moving-coil

Format

image/jpg

Language

English

Type

physical object

Identifier

University of Illinois Observatory Collection A193
obs52

Coverage

University of Illinois Observatory, Urbana, Illinois

Files

DSCN0183.JPG
DSCN0184.JPG
DSCN0187.JPG

Collection

Citation

Weston Electrical Instruments Company, New, New Jersey, “Reflection galvanometer,” University of Illinois Observatory Collection, accessed June 22, 2018, http://uiobservatory.omeka.net/items/show/20.