Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group [CPC: G01L7/00] or [CPC: G01L9/00] by optical means
Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group [CPC: G01L7/00] or [CPC: G01L9/00] by optical means