Vol. 30, Issue 1, pp. 141-150 (2000)

Abstract

Presents an analysis of two new fibre optic liquid level sensors that make use of the reflection phenomenon. The first sensor is of a threshold type. Its head is the knife-edge type fibre tip. The second sensor is of a continuous processing type. Its head has a rubber membrane. These sensors have two major advantages, i.e., simple construction and one fibre used for sending and receiving information.