determine steam quality based on the signals there can be more than one receiver to account for phase differences related to droplet shape and size the steam quality is also assessed by measuring droplet velocity by frequency of the interference patterns and steam vapor and the refraction element of the scattering from the liquid droplet by absorption spectroscopy the system can be utilized with on line and real time measurements for on line and real time determinations of steam quality application_number US 201615130859 A description the following description is presented to enable a person skilled in the art to make and use the invention and is provided in the context of a particular application and its requirements various modifications to the disclosed embodiments will be readily apparent to those skilled in the art and the general principles defined herein may be applied to other embodiments and applications without departing from the scope of the invention thus the present invention is not intended to be limited to the embodiments disclosed but is to be accorded the widest scope consistent with the principles and features disclosed herein in the following description and in the appended claims the following terms and symbols are to be accorded the following definitions a u201c steam conduit u201d denotes a conduit a pipeline a downhole or a chamber serving to pass or contain steam an u201c emitter u201d denotes a system assembly or collection of components including an emitting element that is a source of electromagnetic radiation the term u201c emitter u201d is not limited to the emitting element itself but also refers.