公开(公告)号：US20230221151A1

公开(公告)日：2023-07-13

申请号：US17904599

申请日：2021-02-19

Applicant: Silixa Ltd.

Inventor： Mahmoud Farhadiroushan ,  Tom Parker ,  Sergey Shatalin ,  Jack Maxwell

IPC: G01D5/353

CPC classification number: G01D5/35364

Abstract: A long range optical fiber sensor such as a distributed acoustic sensor has a sensing fiber located remotely from the interrogator, with a length of transport fiber path connecting the two. Because no sensing is performed on the transport fiber then the pulse repetition rate from the interrogator can be high enough such that the pulse repetition rate and pulse power are optimised according to the sensing fiber length and hence sensing frequency response and sensitivity are also optimised according to the sensing fiber length.