Abstract
A new micro flow meter consisting of a capillary and a pressure gauge has been developed. When fluid flows the capillary, the pressure difference between the entrance and exit of the capillary and the Hagen-Poiseuille equation illustrate the flow rate. In case of the flow meter using a capillary with 0.46mm diameter and 60mm length, the steady pressure difference gives the flow rate of 50nl/s with an accuracy of ±3%. Even when changing the pressure difference with time, a compensation calculation gives the flow rate. Therefore, the flow meter enables the measurement of unsteady flow rate.
| Translated title of the contribution | B133 Development of Micro Flow Meter Based on Pressure Difference Generated by Capillary |
|---|---|
| Original language | Japanese |
| Pages (from-to) | 68 - 69 |
| Journal | 日本流体力学会年会講演論文集 |
| Volume | 2004 |
| State | Published - 2004 |