TERMIUM Plus®

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MICROSCOPIO BARRIDO TERMICO [1 record]

Record 1 2014-04-04

English

Subject field(s)
  • Scientific Instruments
CONT

... the scanning thermal microscope ... The microscope's probe may be the world's tiniest thermometer: it can measure surface-temperature variations of a ten-thousandth of a degree on a scale of tens of nanometers. The probe consists of a tungsten wire ending in a point perhaps 30 nanometers across. The wire is coated with a second metal, nickel, which is separated from the tungsten by a layer of insulator everywhere except at the tip of the probe. The tungsten-nickel junction acts as a thermocouple, generating a voltage proportional to its temperature.

French

Domaine(s)
  • Instruments scientifiques
CONT

Les techniques de microscopie thermique à champ proche sont récentes et n'ont trouvé des applications qu'essentiellement qualitatives. Nous utilisons la pointe thermique thermo-résistive du microscope thermique à balayage.

Spanish

Campo(s) temático(s)
  • Instrumentos científicos
CONT

Otros microscopios de barrido con sondas: [el] microscopio de barrido térmico mide la conductividad térmica de la superficie del espécimen y de esta manera se obtiene información sobre la topografía [de la muestra].

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