What does pirani gauge mean?
Definitions for pirani gauge
pi·rani gauge
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Wiktionary
Pirani gaugenoun
a device used to measure vacuum by measuring changes in the temperature related resistance of a filament
Etymology: named after Marcello Stefano Pirani.
Wikipedia
Pirani gauge
The Pirani gauge is a robust thermal conductivity gauge used for the measurement of the pressures in vacuum systems. It was invented in 1906 by Marcello Pirani.Marcello Stefano Pirani was a German physicist working for Siemens & Halske which was involved in the vacuum lamp industry. In 1905 their product was tantalum lamps which required a high vacuum environment for the filaments. The gauges that Pirani was using in the production environment were some fifty McLeod gauges, each filled with 2 kg of mercury in glass tubes.Pirani was aware of the gas thermal conductivity investigations of Kundt and Warburg (1875) published thirty years earlier and the work of Marian Smoluchowski (1898). In 1906 he described his "directly indicating vacuum gauge" that used a heated wire to measure vacuum by monitoring the heat transfer from the wire by the vacuum environment.
Wikidata
Pirani gauge
The Pirani gauge is a robust thermal conductivity gauge used for the measurement of the pressures in vacuum systems. It was invented in 1906 by Marcello Pirani.
Numerology
Chaldean Numerology
The numerical value of pirani gauge in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of pirani gauge in Pythagorean Numerology is: 9
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"pirani gauge." Definitions.net. STANDS4 LLC, 2024. Web. 29 Apr. 2024. <https://www.definitions.net/definition/pirani+gauge>.
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