The Impact of Relocation on the Total Factor Productivity of Hong Kong Manufacturing

A flow meter is described which provides a linear readout signal proportional to flow therethrough and which can compensate for changes in the viscosity of the fluid. The flow meter is designed for in-line installation. The working element consists of two spring-restrained pistons mounted on a common stem. One of the pistons moves axially inside a contoured cylinder providing a nonlinear area-displacement characteristic. The cylinder contour, and the nonlinear area displacement characteristic thereof, is designed to produce a linear relationship between the piston displacement and fluid flow rate. The second piston provides the viscosity-compensating correction force to give an accurate flow indication in the presence of changes of fluid viscosity. The stem upon which the pistons are mounted extends into a calibrated readout scale to provide an indication of flow rate as a function of piston displacement.