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公开(公告)号:US11885748B2
公开(公告)日:2024-01-30
申请号:US17433100
申请日:2020-11-02
Applicant: Tintometer GmbH
Inventor: Perry Palumbo , Elmar Grabert
CPC classification number: G01N21/82 , G01N21/532
Abstract: Nephelometric measuring devices are described. The nephelometric measuring devices can be configured such that an amount of scattered light having different pathlengths impingent upon one or more scattered-light detectors from a beam propagating through a suspension can result in substantially equivalent sensitivity and in correlation between the scattered-light detectors' response and a turbidity value of the suspension. The response of the scattered-light detector(s) receiving scattered light at a nephelometric angle of 85-110° from a beam of light propagating through the suspension can be in accordance to an equation selected from a group of non-linear equations where: x/y=anxn+an−1xn−1+ . . . +a2x2+a1x+a0; where “n” is an integer greater than 0; “x” is equal to the turbidity value of the suspension; “y” is equal to the response of the scattered-light detector; and “an” are calibration coefficients. The maximum response of the scattered-light detector occurs at a turbidity value dependent upon the effective scattered-light pathlength.
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公开(公告)号:US10274418B2
公开(公告)日:2019-04-30
申请号:US15454666
申请日:2017-03-09
Applicant: Tintometer GmbH
Inventor: Elmar Grabert , Ulrich Lundgreen
Abstract: A calibration suspension unit has a container made of a flexible material that is filled with a calibration suspension for the calibration of a turbidity meter. There exists no air supernatant above the calibration suspension in the container. Further, a method for the manufacture of a calibration suspension unit is provided and its use for the calibration of a turbidity meter is described.
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公开(公告)号:US20240102935A1
公开(公告)日:2024-03-28
申请号:US18530979
申请日:2023-12-06
Applicant: Tintometer GmbH
Inventor: Perry PALUMBO , Elmar Grabert
CPC classification number: G01N21/82 , G01N15/02 , G01N15/06 , G01N21/51 , G01N21/532 , G01N21/645
Abstract: Nephelometric measuring devices are described. The nephelometric measuring devices can be configured such that an amount of scattered light having different pathlengths impingent upon one or more scattered-light detectors from a beam propagating through a suspension can result in substantially equivalent sensitivity and in correlation between the scattered-light detectors' response and a turbidity value of the suspension. The response of the scattered-light detector(s) receiving scattered light at a nephelometric angle of 85-110° from a beam of light propagating through the suspension can be in accordance to an equation selected from a group of non-linear equations where:
x/y=aoxn+ ++a2x2+aix+ao; where “n” is an integer greater than 0; “x” is equal to the turbidity value of the suspension; “y” is equal to the response of the scattered-light detector; and “an” are calibration coefficients. The maximum response of the scattered-light detector occurs at a turbidity value dependent upon the effective scattered-light pathlength.-
公开(公告)号:US20220136976A1
公开(公告)日:2022-05-05
申请号:US17433100
申请日:2020-11-02
Applicant: Tintometer GmbH
Inventor: Perry Palumbo , Elmar Grabert
Abstract: Nephelometric measuring devices are described. The nephelometric measuring devices can be configured such that an amount of scattered light having different pathlengths impingent upon one or more scattered-light detectors from a beam propagating through a suspension can result in substantially equivalent sensitivity and in correlation between the scattered-light detectors' response and a turbidity value of the suspension. The response of the scattered-light detector(s) receiving scattered light at a nephelometric angle of 85-110° from a beam of light propagating through the suspension can be in accordance to an equation selected from a group of non-linear equations where: x/y=anxn+an−1xn−1+ . . . +a2x2+a1x+a0; where “n” is an integer greater than 0; “x” is equal to the turbidity value of the suspension; “y” is equal to the response of the scattered-light detector; and “an” are calibration coefficients. The maximum response of the scattered-light detector occurs at a turbidity value dependent upon the effective scattered-light pathlength.
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公开(公告)号:US20170268986A1
公开(公告)日:2017-09-21
申请号:US15454666
申请日:2017-03-09
Applicant: Tintometer GmbH
Inventor: Elmar Grabert , Ulrich Lundgreen
CPC classification number: G01N21/03 , A61J1/10 , B01L3/505 , G01N15/06 , G01N21/11 , G01N21/278 , G01N21/4785 , G01N2001/2893 , G01N2015/0693 , G01N2021/0364 , G01N2201/13
Abstract: A calibration suspension unit has a container made of a flexible material that is filled with a calibration suspension for the calibration of a turbidity meter. There exists no air supernatant above the calibration suspension in the container. Further, a method for the manufacture of a calibration suspension unit is provided and its use for the calibration of a turbidity meter is described.
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