| 摘要 |
The invention relates to a method for measuring the viscosity of a fluid, said method comprising the following steps: (a) providing a flow of said fluid in a laminar state inside a channel (14, 24) having a characteristic transverse dimension D, and in which an elongate member (12, 22) having a characteristic dimension d is placed substantially along the longitudinal direction of said channel and substantially at the centre of the channel, and has a portion of the length l thereof submerged in said channel; (b) measuring the friction force (f) applied by said fluid on the walls of the elongate member; and (c) calculating the dynamic viscosity (η) of said fluid based on the equation (1) f=ληlU where U is the average flow rate andλis a geometric factor.
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