公开(公告)号：US20210318191A1

公开(公告)日：2021-10-14

申请号：US17048598

申请日：2019-04-17

Applicant: Paul D. OKULOV

Inventor： Paul D. OKULOV

IPC: G01L1/22 ,  G06F1/3206 ,  G06F1/26 ,  G06N3/02

Abstract: The present invention relates to structural health and usage monitoring systems, particularly employing strain sensing means for assessment of the loading history and fatigue damage in an aircraft, vessel, structure or machinery. More specifically, the present invention relates to autonomous systems for recording, processing and assessment of the history of a variety of mechanical and environmental factors affecting structural health in a wide spectrum of applications, such as in mechanical components of a fixed wing or a rotary aircraft, civil structures, machines, windmills, gas or oil pipes and vessels including marine vessels. It also can work as a standalone or integrated sensor or recording device for use in variety of applications where its ultralow power consumption, low cost and multi-sensing capabilities can provide for accurate assessments based on neural network principles of data processing and autonomous monitoring for many years without a need for maintenance or post-processing.

公开(公告)号：US20200264056A1

公开(公告)日：2020-08-20

申请号：US16855397

申请日：2020-04-22

Applicant: Paul D. OKULOV

Inventor： Paul D. OKULOV

IPC: G01L1/00 ,  G01L1/04 ,  G01M5/00

Abstract: A low power consumption multi-contact micro electro-mechanical strain/displacement sensor and miniature autonomous self-contained systems for recording of stress and usage history with direct output suitable for fatigue and load spectrum analysis are provided. In aerospace applications the system can assist in prediction of fatigue of a component subject to mechanical stresses as well as in harmonizing maintenance and overhauls intervals. In alternative applications, i.e. civil structures, general machinery, marine and submarine vessels, etc., the system can autonomously record strain history, strain spectrum or maximum values of the strain over a prolonged period of time using an internal power supply or a power supply combined with an energy harvesting device. The sensor is based on MEMS technology and incorporates a micro array of flexible micro or nano-size cantilevers. The system can have extremely low power consumption while maintaining precision and temperature/humidify independence.