EMBEDDED SENSOR DEVICES AND METHODS

    公开(公告)号:US20220107251A1

    公开(公告)日:2022-04-07

    申请号:US17593964

    申请日:2020-04-03

    摘要: Many construction materials are chemically active materials whose structural properties parameters, physical-mechanical properties, etc. need to be determined. By exploiting embedded wireless sensors within these materials from initial wet manufactured state to final solid capillary-porous material assessment of initial and subsequent properties can be established allowing determination of current and future performance of the construction material. Embedded sensors can also monitor lifetime properties to identify performance degradations in the construction material as well as other construction elements embedded within or around the construction material. Further, the data accumulated from initial manufacturing to extended lifetime allows for additional assessments and improvements with respect to selection of construction material mix for a particular project at a particular location and time, improving the assessment of proactive repair and/or remedial work, quality control monitoring, cost reduction etc.

    EMBEDDED SENSORS AND SYSTEMS EXPLOITING EMBEDDED SENSORS

    公开(公告)号:US20240073831A1

    公开(公告)日:2024-02-29

    申请号:US18263660

    申请日:2022-02-01

    IPC分类号: H04W52/36

    CPC分类号: H04W52/367 H04W52/362

    摘要: Some construction materials are chemically active materials, e.g., concrete, requiring analysis to determine structural properties and physical-mechanical properties. Increasing industry demands for cost reductions, profitability, tighter construction deadlines etc. whilst limiting potential liabilities would benefit from embedded sensors to monitor and assess the material life cycle from initial deployment through to its current and future performance. Embodiments of the invention provide for embedded sensors with low power consumption whilst supporting communications to external devices with position within the infrastructure/construction material positional tolerance with low overhead data retrieval. Embodiments of the invention support automated self-contained data acquisition/logging modules for use throughout life cycle points.

    ELECTRICAL METHODS AND SYSTEMS FOR CONCRETE TESTING

    公开(公告)号:US20210262962A1

    公开(公告)日:2021-08-26

    申请号:US17319276

    申请日:2021-05-13

    摘要: Hundreds of thousands of concrete bridges and hundreds of billions of tons of concrete require characterization with time for corrosion. Accordingly, protocols for rapid testing and improved field characterization systems that automatically triangulate electrical resistivity and half-cell corrosion potential measurements would be beneficial allowing discrete/periodic mapping of a structure to be performed as well as addressing testing for asphalt covered concrete. Further, it is the low frequency impedance of rebar in concrete that correlates to corrosion state but these are normally time consuming vulnerable to noise. Hence, it would be beneficial to provide a means of making low frequency electrical resistivity measurements rapidly. Further, prior art techniques for electrical rebar measurements require electrical connection be made to the rebar which increases measurement complexity/disruption/repair/cost even when no corrosion is identified. Beneficially a method of determining the state of a rebar without electrical contact is taught.

    METHOD AND SYSTEMS RELATING TO CONSTRUCTION MATERIAL ASSESSMENT

    公开(公告)号:US20210033553A1

    公开(公告)日:2021-02-04

    申请号:US17012677

    申请日:2020-09-04

    摘要: Hundreds of thousands of concrete bridges, buildings etc. and hundreds of billions of tons of concrete require characterization throughout the process from manufacture to pouring and curing and on throughout service life. The characterization may relate to initial concrete properties, projected concrete properties, framework removal, corrosion, failure etc. Accordingly, a variety of measurements such as water content, electrical resistivity, and half-cell corrosion potential for example would be beneficially implemented as easy to use field test equipment or embedded sensors allowing lifetime monitoring to be performed rather than discrete assessments when issues become evident.

    EMBEDDED WIRELESS MONITORING SENSORS

    公开(公告)号:US20210382032A1

    公开(公告)日:2021-12-09

    申请号:US17406344

    申请日:2021-08-19

    摘要: Concrete can be one of the most durable building materials where consumption is projected to reach approximately 40 billion tons in 2017 alone. Despite this the testing of concrete at all stages of its life cycle is still in its infancy although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Accordingly, by exploiting self-contained wireless sensor devices, which are deployed with the wet concrete, the in-situ curing and maturity measurement data can be established and employed together with batch specific concrete data to provide rapid initial tests and evolving performance data regarding the concrete cure, performance, corrosion of concrete at different points in its life cycle. Such sensors remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment.

    ELECTRICAL METHODS AND SYSTEMS FOR CONCRETE TESTING

    公开(公告)号:US20170227481A1

    公开(公告)日:2017-08-10

    申请号:US15496298

    申请日:2017-04-25

    IPC分类号: G01N27/04 G01N17/04 G01N33/38

    摘要: Hundreds of thousands of concrete bridges and hundreds of billions of tons of concrete require characterization with time for corrosion. Accordingly, protocols for rapid testing and improved field characterization systems that automatically triangulate electrical resistivity and half-cell corrosion potential measurements would be beneficial allowing discrete/periodic mapping of a structure to be performed as well as addressing testing for asphalt covered concrete. Further, it is the low frequency impedance of rebar in concrete that correlates to corrosion state but these are normally time consuming vulnerable to noise. Hence, it would be beneficial to provide a means of making low frequency electrical resistivity measurements rapidly. Further, prior art techniques for electrical rebar measurements require electrical connection be made to the rebar which increases measurement complexity/disruption/repair/cost even when no corrosion is identified. Beneficially a method of determining the state of a rebar without electrical contact is taught.

    EMBEDDED WIRELESS MONITORING SENSORS
    9.
    发明公开

    公开(公告)号:US20230393115A1

    公开(公告)日:2023-12-07

    申请号:US18447582

    申请日:2023-08-10

    摘要: Concrete can be one of the most durable building materials where consumption is projected to reach approximately 40 billion tons in 2017 alone. Despite this the testing of concrete at all stages of its life cycle is still in its infancy although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Accordingly, by exploiting self-contained wireless sensor devices, which are deployed with the wet concrete, the in-situ curing and maturity measurement data can be established and employed together with batch specific concrete data to provide rapid initial tests and evolving performance data regarding the concrete cure, performance, corrosion of concrete at different points in its life cycle. Such sensors remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment.

    ELECTRICAL METHODS AND SYSTEMS FOR CONCRETE TESTING

    公开(公告)号:US20230184707A1

    公开(公告)日:2023-06-15

    申请号:US18081401

    申请日:2022-12-14

    摘要: Concrete can be one of the most durable building materials and structures made of concrete can have a long service life. Consumption is projected to reach approximately 40 billion tons in 2017. Despite this the testing of concrete at all stages of its life cycle is still in its early stages although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Embodiments of the invention provide concrete suppliers, construction companies, regulators, architects, and others with rapid testing and performance data regarding the cure, performance, corrosion of concrete at different points in its life cycle based upon a simple electrical tests that remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment. Wireless sensors can be embedded from initial loading through post-cure into service life.