Document Type and Number:
Japanese Patent JPS5324828
Kind Code:
B1
Abstract:
This invention relates to a method of and means for conveying and measuring gases for gas analysis operations by means of a pump, which conveys the gas with constant volume per working cycle. The means for this purpose, as used in connection with gas analysis instruments, consists of a cyclically operating gas delivery pump with an electric motor drive which is connected to a frequency transmitter for pre-setting the speed of rotation.
Application Number:
JP5355369A
Publication Date:
July 22, 1978
Filing Date:
July 08, 1969
Export Citation:
International Classes:
G01F15/02; F04B49/06; F04B49/10; F04B49/20; G01N1/00; G01N1/24; G05D7/06; (IPC1-7): G01N1/24; B01L5/00; F04B49/06; G01F3/14