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Toyobo Co Ltd
Original Assignee
Toyobo Co Ltd
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Filing date
Publication date
Application filed by Toyobo Co LtdfiledCriticalToyobo Co Ltd
Priority to JP50078758ApriorityCriticalpatent/JPS522762A/en
Publication of JPS522762ApublicationCriticalpatent/JPS522762A/en
Measurement Of Levels Of Liquids Or Fluent Solid Materials
(AREA)
Abstract
PURPOSE:To provide a process of finding the level of the surface of the liquid by producing the air part shut the lower end of it by the surface of a liquid in the empty tube and to measure the resonance wavelength of this air part.
Apparatus for measuring the wall thickness of a moving tube wherein at least one measuring body inside the tube may be lifted off the tube by the motion of the tube