Holweck pump
From Infogalactic: the planetary knowledge core
A Holweck pump is a type of vacuum pump that utilises the drag of air molecules against a rotating surface.[1] The modern turbomolecular pump is a more advanced version based on similar operation, and a Holweck pump is often used as the backing pump for it. The Holweck pump can produce a vacuum as low as 10−8 mmHg.
Invention
The device was invented in the early 1920s by Fernand Holweck as part of his apparatus for his work in studying soft X-rays.
Manufacture
It was manufactured by the notable French scientific instrument maker, Charles Beaudouin.[2]
References
Further reading
- Pompe à vide moléculaire (modèle Holweck N°2 de mai 1922) (includes diagram)
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