Viscosity measuring apparatus
AssigneeEastman Kodak Company
InventorMichael Long
Life of this patent
Estimating the term…
Abstract
Apparatus for measuring the viscosity of a Newtonian fluid, includes a tubular housing which defines an internal cavity; a fluid restriction structure disposed in a first portion of the cavity; and a pressure measuring device disposed to measure the differential pressure in the cavity of the fluid which has flowed through the fluid restriction structure. The apparatus further includes a device for applying pressure to the fluid upstream from the fluid restriction structure to cause the fluid to flow through the fluid restriction structure so that the pressure measuring device measures the pressure differential which is inversely proportional to the fluid viscosity squared.
Claims4
An apparatus for measuring the viscosity of a Newtonian fluid, comprising:
- (a) a tubular housing which defines an internal cavity;
- (b) a fluid restriction structure disposed in a first portion of the cavity;
- (c) a pressure measuring device disposed to measure the differential pressure in the cavity of the fluid which has flowed through the fluid restriction structure;
- and
- (d) a device for applying pressure to the fluid upstream from the fluid restriction structure to cause the fluid to flow through the fluid restriction structure so that the pressure measuring device measures the pressure differential,
- wherein the viscosity is measured based on the differential pressure being inversely proportional to the fluid viscosity squared.
Dependencies are inferred from the claim text.