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    MATERIAL PERFORMANCE TESTING INCLUDING IMPROVED LOAD DETECTION
    32.
    发明公开
    MATERIAL PERFORMANCE TESTING INCLUDING IMPROVED LOAD DETECTION 审中-公开

    公开(公告)号：US20240118180A1

    公开(公告)日：2024-04-11

    申请号：US18377877

    申请日：2023-10-09

    Applicant: Troxler Electronic Laboratories, Inc.

    Inventor： Shawn Brovold

    IPC: G01N3/08 ,  G01N3/20 ,  G01N33/42

    CPC classification number: G01N3/08 ,  G01N3/20 ,  G01N33/42 ,  G01N2203/0062

    Abstract: A material testing apparatus includes an actuator to apply a force to a load head according to electronic control signals. The load head supplies a load to a material specimen in a first dimension. A plurality of load line displacement (LLD) reference points extend radially outward from the load head; and a plurality of LLD measuring devices correspond to the plurality of LLD reference points. Each LLD measuring device is positioned to detect a position of a corresponding LLD reference point along the first dimension and is configured to transmit position signals to a controller programmed to perform a performance test on the material specimen using feedback control based on a combination of the position signals, including an average of the position signals.

    APPARATUS, METHOD, AND ASSOCIATED SYSTEM FOR TESTING A PAVEMENT MATERIAL SAMPLE
    33.
    发明申请
    APPARATUS, METHOD, AND ASSOCIATED SYSTEM FOR TESTING A PAVEMENT MATERIAL SAMPLE 有权

    公开(公告)号：US20220244154A1

    公开(公告)日：2022-08-04

    申请号：US17722887

    申请日：2022-04-18

    Applicant: Troxler Electronic Laboratories, Inc.

    Inventor： Matthew MARCHESE ,  William SANDERS ,  Yan ZHANG ,  Robert Ernest Troxler

    IPC: G01N3/12 ,  G01N3/06 ,  G01N3/14 ,  G01N3/18 ,  G05B6/02

    Abstract: An apparatus for testing paving samples includes a base that includes a paving sample tray about the cabinet and configured for translation relative to the cabinet. A roller is configured for imparting compressive forces to a sample carried by the sample tray. An arm is configured for moving the roller from a stowed position to an in-use position where the roller contacts the sample. A cylinder assembly having a piston therein supplies pressure forces to the arm to move the arm from the stowed position to the in-use position, wherein a depth of travel of the arm is limited by the sample. As the sample is compressed, the depth of travel increases. A measurement device is in communication with the cylinder for determining an amount of travel of the arm to thus determine an amount of compression of the sample.

    Methods and systems for measuring the density of material including a non-nuclear moisture property detector
    37.
    发明授权
    Methods and systems for measuring the density of material including a non-nuclear moisture property detector 有权

    公开(公告)号：US10690578B2

    公开(公告)日：2020-06-23

    申请号：US16174393

    申请日：2018-10-30

    Applicant: Troxler Electronic Laboratories, Inc.

    Inventor： Robert Ernest Troxler ,  Wewage Hiran Linus Dep

    IPC: G01N9/24 ,  G01N19/10 ,  G01N23/06 ,  G01N23/00 ,  G01N27/04 ,  G01N23/203

    Abstract: The subject matter described herein includes methods, systems, and computer program products for measuring the density of a material. According to one aspect, a material property gauge includes a nuclear density gauge for measuring the density of a material. A radiation source adapted to emit radiation into a material and a radiation detector operable to produce a signal representing the detected radiation. A first material property calculation function may calculate a value associated with the density of the material based upon the signal produced by the radiation detector. The material property gauge includes an electromagnetic moisture property gauge that determines a moisture property of the material. An electromagnetic field generator may generate an electromagnetic field where the electromagnetic field sweeps through one or more frequencies and penetrates into the material. An electromagnetic sensor may determine a frequency response of the material to the electromagnetic field across the several frequencies.

    NUCLEAR GAUGES AND METHODS OF CONFIGURATION AND CALIBRATION OF NUCLEAR GAUGES
    38.
    发明申请
    NUCLEAR GAUGES AND METHODS OF CONFIGURATION AND CALIBRATION OF NUCLEAR GAUGES 审中-公开

    公开(公告)号：US20200183026A1

    公开(公告)日：2020-06-11

    申请号：US16731144

    申请日：2019-12-31

    Applicant: Troxler Electronic Laboratories, Inc.

    Inventor： Robert Ernest Troxler ,  Dirk M. Steckmann ,  Donald E. Weger

    IPC: G01T7/00 ,  G01N23/09 ,  G01D18/00

    Abstract: A method for calibrating a nuclear gauge of the having a source includes providing a nuclear gauge comprising a radiation source, the radiation source being coupled with a computing system with a machine readable program stored thereon containing a calibration routine. An operator places the gauge on one or more specified blocks to adjust the source within each block to one or more specified positions to initiate a count. The method includes determining that the source is at each position before each count begins, adjusting the counting times before each count begins by the program on the nuclear gauge based on each position of the source to obtain calibration information, obtaining counts at each position, storing the counts within the computing system of the nuclear gauge, and calculating for each position calibration coefficients.

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