What do square root extractors convert from differential flowmeters?

Square root extractors are devices used in the context of differential flow measurement, particularly in applications involving differential pressure flowmeters. These flowmeters provide a pressure differential that correlates to the flow rate of a fluid through a pipe. However, this relationship is not linear; instead, the flow rate is proportional to the square root of the differential pressure. Therefore, to convert the non-linear differential pressure signal into a linear flow signal that can be easily interpreted and utilized by control systems and monitoring equipment, a square root extractor is employed.

The purpose of the square root extractor is to manipulate the signal obtained from the differential pressure measurement so that it reflects the actual flow rate as a linear signal. This linear flow signal is crucial for accurate readings and effective control processes in various industrial applications.

The other options refer to different types of signals that do not directly relate to the specific function of square root extractors in the measurement of differential flow. Linear flow signals specifically indicate the transformed output of the non-linear differential pressure, demonstrating the essential role of square root extractors in flow measurement systems.