Experimental demonstration device for sound transmission incapability in vacuum

The utility model relates to an experimental demonstration device for sound transmission incapability in vacuum, in particular to a magnetic levitation technique-based experimental device for sound transmission incapability in vacuum. The experimental demonstration device comprises a vacuum cover ba...

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Bibliographic Details
Main Author ZHU CHANGMING
Format Patent
LanguageChinese
English
Published 13.03.2013
Subjects
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
GLOBES
PHYSICS
PLANETARIA
SEALS
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Summary:The utility model relates to an experimental demonstration device for sound transmission incapability in vacuum, in particular to a magnetic levitation technique-based experimental device for sound transmission incapability in vacuum. The experimental demonstration device comprises a vacuum cover base, a glass cover, a vent pipe, an air valve, an air pump and an alarm, wherein the vacuum cover base is connected with the air pump through the vent pipe on which the air valve is mounted, and the glass cover is arranged above the vacuum cover base; the experimental demonstration device also comprises a circular permanent-magnetic tray for supporting axial magnetization of the alarm, wherein the circular permanent-magnetic tray is suspended above the vacuum cover base in the glass cover, and a magnetic levitation base is mounted under the vacuum cover base. The experimental demonstration device for sound transmission incapability in vacuum is simple to manufacture, the phenomenon of sound transmission incapability
Bibliography:Application Number: CN20122382682U