QUASI-DISTRIBUTED RESISTIVE SENSOR AND METHOD FOR MEASURING DISTRIBUTED PARAMETERS OF PHYSICAL QUANTITIES BASED THEREON Russian patent published in 2022 - IPC G01D5/16 

FIELD: measuring equipment.

SUBSTANCE: group of inventions relates to the field of distributed measurements of physical quantities: to quasi-distributed resistive sensors and methods of measuring parameters of distributed physical quantities based on such sensors. Quasi-distributed resistive sensor consists of resistive sensitive elements electrically connected in a tree structure. At the same time it is possible to measure values of resistance of separate resistive sensitive elements by method of "voltmeter — ammeter" with provision of different paths of current flow for probing and measuring signals. Minimum number of resistive sensitive elements in one internal connection point is equal to three. Tree structure makes it possible to make the quasi-distributed sensor single-layer. Method of measuring distributed physical quantities is based on switching a source of a probing signal and a voltage meter. Paths of current flow for the probing and measuring signals are different.

EFFECT: high accuracy, measurement speed, providing a single-layer design of a quasi-distributed sensor, reducing the effect of the number of sensitive elements of the sensor on the measurement error.

13 cl, 5 dwg