An optical surface plasmon resonance (SPR)-based sensor for in-line distillation-process measurement has been developed. A four-layer configuration is used to achieve the operational range required and to improve the mechanical stability of the sensor. The device, a fully optical passive component, is suitable for installation in hazardous environments. Data obtained in the monitoring of flavour-mixture distillation processes are presented and the use of different dielectric coatings is discussed. bl. © 1993.
|Journal||Sensors and Actuators: A. Physical|
|Publication status||Published - 1 Jan 1993|