Patent ID: 9733174
Date: 2017-08-15
CPC Classifications: G01N

Claim:
1. A capillary microviscometer comprising: a wafer within which only one microchannel is formed, the only one microchannel being open at one end and closed at the remaining end and formed by micromachined concatenated microchannels; a base; and a sensor device configured to measure a position of a fluid column within the microchannel, the sensor device being located in the base and capable of recording the dynamics of a fluid entering said only one microchannel; the sensor device being connected to a data processor, the data processor comprising a display, wherein the processor calculates a viscosity from a transient dynamics analysis of the fluid entering the microchannel by capillary action, by detecting position x of the fluid inside the microchannel ( where L is a maximum length up to which the fluid enters within the microchannel, r is the average channel radius, α is a geometrical factor determined by the section of the microchannel, μ is the viscosity, L