File:Helium Research Center internal report - a 10-channel automatic scanner with individually selectable channel times (IA heliumresearchce00mcve).pdf

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Original file ‎(1,597 × 2,137 pixels, file size: 4.64 MB, MIME type: application/pdf, 36 pages)

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Helium Research Center internal report : a 10-channel automatic scanner with individually selectable channel times   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
McVey, James R
image of artwork listed in title parameter on this page
Title
Helium Research Center internal report : a 10-channel automatic scanner with individually selectable channel times
Publisher
Amarillo, Tex. : U.S. Department of the Interior, Bureau of Mines, Branch of Laboratory Services
Amarillo, Tex. : U.S. Department of the Interior, Bureau of Mines, Branch of Laboratory Services
Description
9 leaves,℗7 unnumbered℗leaves of plates : 28 cm
A 10-channel automatic scanner has been developed to automate a thermal conductivity apparatus used in the direct analysis of helium-nitrogen and helium-hydrogen gas samples from a phase equilibria apparatus. The unit uses unijunction transistors to provide a separate programmable time of 1 to 99 seconds for each individual channel. Individual channel timing allows the user to program measurements and/or command functions at will. The unique features of the unit are its individually programmable channel time and its compatibility with commercial digital voltmeters and printers. These features permit the scanner to completely automate the sequence of events from sample injection to the printing of the final sample results from the thermal conductivity apparatus
"October 1968."
"Branch of Laboratory Services, Project℗7751."

Subjects: Helium; Hydrogen; Nitrogen; Electronic apparatus and appliances -- Thermal conductivity; Electronic apparatus and appliances; Helium; Hydrogen; Nitrogen; Thermal conductivity
Language English
Publication date 1968
publication_date QS:P577,+1968-00-00T00:00:00Z/9
Current location
IA Collections: blmlibrary; fedlink; americana
Accession number
heliumresearchce00mcve
Notes No Copyright.
Irregular pagination.
Authority file  OCLC: 1157144485
Source
Internet Archive identifier: heliumresearchce00mcve
https://archive.org/download/heliumresearchce00mcve/heliumresearchce00mcve.pdf

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Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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current00:08, 4 September 2020Thumbnail for version as of 00:08, 4 September 20201,597 × 2,137, 36 pages (4.64 MB)Fæ (talk | contribs)FEDLINK - United States Federal Collection heliumresearchce00mcve (User talk:Fæ/IA books#Fork8) (batch 1000-3000 #178470)

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