Becton, Dickinson and Company
Improved Flow Channel for Flow Rate Measurement

Abstract:

An improved flow sensor (104) is provided to enable accurate dose measurements to be made with little or no sensor calibration due to highly accurate flow channel cross section. The flow channel is formed as a metal tube (1301). A sensor window (1304) is formed in the side wall of the metal tube (1301), and the flow sensor (1200) is mounted in the sensor window. A flow manifold is formed around the metal flow channel.