Matches in SemOpenAlex for { <https://semopenalex.org/work/W791366441> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W791366441 abstract "A broad-range vacuum gauge has been created by suspending a single-walled carbon nanotube (SWNT) (metallic or semiconducting) in a Schottky diode format or in a bridge conductor format, between two electrically charged mesas. SWNTs are highly sensitive to molecular collisions because of their extremely small diameters in the range of 1 to 3 nanometers. The measurement parameter will be the change in conductivity of SWNT due to decreasing rate of molecular collisions as the pressure inside a chamber decreases. The rate of heat removal approaches a saturation limit as the mean free path (m.f.p.) lengths of molecules increase due to decreasing pressure. Only those sensing elements that have a long relaxation time can produce a measureable response when m.f.p. of molecules increases (or time between two consecutive collisions increases). A suspended SWNT offers such a capability because of its one-dimensional nature and ultrasmall diameter. In the initial approach, similar architecture was used as that of a SWNT-Schottky diode that has been developed at JPL, and has its changing conductivity measured as the test chamber is pumped down from atmospheric pressure to high vacuum (10(exp -7) Torr). Continuous response of decreasing conductivity has been measured as a function of decreasing pressure (SWNT is a negative thermal coefficient material) from atmosphere to less than 10(exp -6) Torr. A measureable current change in the hundreds of nA range has been recorded in the 10(exp -6) Torr regime." @default.
- W791366441 created "2016-06-24" @default.
- W791366441 creator A5011449783 @default.
- W791366441 creator A5051337917 @default.
- W791366441 date "2011-01-01" @default.
- W791366441 modified "2023-09-23" @default.
- W791366441 title "High-Sensitivity, Broad-Range Vacuum Gauge Using Nanotubes for Micromachined Cavities" @default.
- W791366441 hasPublicationYear "2011" @default.
- W791366441 type Work @default.
- W791366441 sameAs 791366441 @default.
- W791366441 citedByCount "0" @default.
- W791366441 crossrefType "journal-article" @default.
- W791366441 hasAuthorship W791366441A5011449783 @default.
- W791366441 hasAuthorship W791366441A5051337917 @default.
- W791366441 hasConcept C113196181 @default.
- W791366441 hasConcept C121332964 @default.
- W791366441 hasConcept C131540310 @default.
- W791366441 hasConcept C147789679 @default.
- W791366441 hasConcept C159985019 @default.
- W791366441 hasConcept C171250308 @default.
- W791366441 hasConcept C185592680 @default.
- W791366441 hasConcept C192562407 @default.
- W791366441 hasConcept C205200001 @default.
- W791366441 hasConcept C2777527079 @default.
- W791366441 hasConcept C30646810 @default.
- W791366441 hasConcept C43617362 @default.
- W791366441 hasConcept C49040817 @default.
- W791366441 hasConcept C513720949 @default.
- W791366441 hasConcept C78434282 @default.
- W791366441 hasConcept C97346530 @default.
- W791366441 hasConcept C97355855 @default.
- W791366441 hasConceptScore W791366441C113196181 @default.
- W791366441 hasConceptScore W791366441C121332964 @default.
- W791366441 hasConceptScore W791366441C131540310 @default.
- W791366441 hasConceptScore W791366441C147789679 @default.
- W791366441 hasConceptScore W791366441C159985019 @default.
- W791366441 hasConceptScore W791366441C171250308 @default.
- W791366441 hasConceptScore W791366441C185592680 @default.
- W791366441 hasConceptScore W791366441C192562407 @default.
- W791366441 hasConceptScore W791366441C205200001 @default.
- W791366441 hasConceptScore W791366441C2777527079 @default.
- W791366441 hasConceptScore W791366441C30646810 @default.
- W791366441 hasConceptScore W791366441C43617362 @default.
- W791366441 hasConceptScore W791366441C49040817 @default.
- W791366441 hasConceptScore W791366441C513720949 @default.
- W791366441 hasConceptScore W791366441C78434282 @default.
- W791366441 hasConceptScore W791366441C97346530 @default.
- W791366441 hasConceptScore W791366441C97355855 @default.
- W791366441 hasLocation W7913664411 @default.
- W791366441 hasOpenAccess W791366441 @default.
- W791366441 hasPrimaryLocation W7913664411 @default.
- W791366441 hasRelatedWork W1636308347 @default.
- W791366441 hasRelatedWork W1649869490 @default.
- W791366441 hasRelatedWork W1970985350 @default.
- W791366441 hasRelatedWork W1980139963 @default.
- W791366441 hasRelatedWork W1994075579 @default.
- W791366441 hasRelatedWork W2002133970 @default.
- W791366441 hasRelatedWork W2009386864 @default.
- W791366441 hasRelatedWork W2049530916 @default.
- W791366441 hasRelatedWork W2051369805 @default.
- W791366441 hasRelatedWork W2064547595 @default.
- W791366441 hasRelatedWork W2078329693 @default.
- W791366441 hasRelatedWork W2090851395 @default.
- W791366441 hasRelatedWork W2181510285 @default.
- W791366441 hasRelatedWork W2253641619 @default.
- W791366441 hasRelatedWork W2312853714 @default.
- W791366441 hasRelatedWork W2580004200 @default.
- W791366441 hasRelatedWork W2756796228 @default.
- W791366441 hasRelatedWork W2901415604 @default.
- W791366441 hasRelatedWork W3175155705 @default.
- W791366441 hasRelatedWork W2182719091 @default.
- W791366441 isParatext "false" @default.
- W791366441 isRetracted "false" @default.
- W791366441 magId "791366441" @default.
- W791366441 workType "article" @default.