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公开(公告)号：US10801990B2
公开(公告)日：2020-10-13
申请号：US15955124
申请日：2018-04-17
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Corey Alan Salzer
IPC: G01N27/416 , G01N27/30
Abstract: An embodiment provides a method for compensating for inteferants in measurement of alkalinity in a reagent-less system, including: introducing an aqueous sample into a measurement device comprising one or more series of electrodes; applying an electrical signal to the aqueous sample using the one or more series of electrodes, wherein the electrical signal is selected from the group consisting of: current and voltage; identifying, during application of the electrical signal, that the electrical signal reaches an oxidation threshold and measuring, prior to reaching the oxidation threshold, a first electrical response to the electrical signal, the first electrical response attributable to interferants in the aqueous sample; identifying, during application of the electrical signal, that the electrical signal reaches an endpoint and measuring, from the oxidation threshold to the endpoint, a second electrical response to the electrical signal; and measuring an alkalinity of the aqueous sample based upon a difference between the first electrical response and the second electrical response. Other aspects are described and claimed.
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公开(公告)号：US10591455B2
公开(公告)日：2020-03-17
申请号：US15631703
申请日：2017-06-23
Applicant: Hach Company
Inventor： Jim Duncan , Aria Farjam , Jim Harbridge , Brian Harmon , Ulrich Lundgreen , Darren MacFarland , Leon Moore , Perry Palumbo , William Louis Pherigo, Jr. , Robert Stoughton , Luke Waaler
IPC: B01L3/00 , G01N1/10 , G01N33/18 , G01N21/25 , G01N21/78 , G01N31/22 , G01N21/03 , G01N21/05 , G01N21/59
Abstract: An embodiment provides a method, including: operating a motor to position sample fluid within a fluid channel of a cuvette; transmitting light through an optical chamber of the cuvette; measuring a value of received light that has been transmitted through the optical chamber; comparing the measured value of light to one or more thresholds; determining a position of the sample fluid within the fluid channel based on a comparison from the comparing step; and generating a response based upon the position of the sample fluid with the fluid channel. Other aspects are described and claimed.
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公开(公告)号：US10520433B2
公开(公告)日：2019-12-31
申请号：US16368503
申请日：2019-03-28
Applicant: Hach Company
Inventor： Richard Edward Leggett , Wayne Boris Perdue , Andreas Mitreiter
Abstract: Various turbidimeters are described that can detect light directly in a substantially circular, e.g., encompassing, manner such that an increased amount of scattered light from a sample vial may be detected by a light detector, e.g., a photodiode or photodiode array. In an embodiment, a substantially circular photodiode array is provided to directly detect scattered light in an arc about the sample vial. In other embodiments, light guides are provided in an arc element that guides light to a detector or detectors. Other aspects are described and claimed.
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公开(公告)号：US10309808B2
公开(公告)日：2019-06-04
申请号：US14841079
申请日：2015-08-31
Applicant: Hach Company
Inventor： David Langley Rick
IPC: G01F1/00 , G01N33/18 , G01N27/416
Abstract: A fluid quantification instrument is provided according to the invention. The fluid quantification instrument includes one or more sensor probes and meter electronics in communication with the one or more sensor probes. The meter electronics are configured to receive one or more raw fluid measurements from the one or more sensor probes, process the one or more raw fluid measurements using a predictive system model to produce one or more optimized fluid measurements, and determine one or more fluid quantifications using at least the one or more optimized fluid measurements.
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公开(公告)号：US10247635B2
公开(公告)日：2019-04-02
申请号：US15199726
申请日：2016-06-30
Applicant: Hach Company
Inventor： Murphy Lee Pickard , Peter Louis Bielawski , Russell Paul Gorham , Randolph Anderson , Rajesh Shetty , Erez Raviv , Timothy N. Kirk
Abstract: An embodiment provides an apparatus, including: a cartridge including a base and a lid; at least one fluid line located between the base and the lid of the cartridge; at least one heating element located either on the base or the lid and aligned in intimate contact with the at least one fluid line; at least one heat sensing element in intimate contact with the at least one fluid line, where the at least one heat sensing element is spaced downstream from the at least one heating element; a supply of power to the cartridge; and a processor in electrical communication with the cartridge that executes a program of instructions to: operate the at least one heating element to produce heating of the at least one fluid line at a first position; and operate the at least one heat sensing element to detect the heat of a fluid within the at least one fluid line at a position downstream of the first position. Other embodiments are described and claimed.
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Patent Agency Ranking
公开(公告)号：US20180292348A1
公开(公告)日：2018-10-11
申请号：US15766806
申请日：2016-10-07
Applicant: HACH COMPANY
Inventor： Corey SALZER , Vishnu RAJASEKHARAN , Dan KROLL , John LEE
IPC: G01N27/404 , G01N27/49 , G01N33/18 , G01N27/407
Abstract: An embodiment provides an amperometric sensor, including: a housing containing an inner fill solution; an electrode bathed in the inner fill solution; and a membrane in intimate contact with the electrode; the electrode being formed as a non-compact or porous structure on the membrane; whereby a spatial relationship of the electrode and the membrane is constant. Other embodiments are described and claimed.
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公开(公告)号：US20170276603A1
公开(公告)日：2017-09-28
申请号：US15512408
申请日：2015-09-18
Applicant: Hach Company
Inventor： Richard Edward Leggett , Wayne Boris Perdue , Andreas Mitreiter
IPC: G01N21/51
CPC classification number: G01N21/51 , G01N2021/4726
Abstract: Various turbidimeters are described that can detect light directly in a substantially circular, e.g., encompassing, manner such that an increased amount of scattered light from a sample vial may be detected by a light detector, e.g., a photodiode or photodiode array. In an embodiment, a substantially circular photodiode array is provided to directly detect scattered light in an arc about the sample vial. In other embodiments, light guides are provided in an arc element that guides light to a detector or detectors. Other aspects are described and claimed.
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公开(公告)号：US20160370281A1
公开(公告)日：2016-12-22
申请号：US15254447
申请日：2016-09-01
Applicant: Hach Company
Inventor： Robert A. Latimer , Walter D. Modic , Eric Robert Wright , Paul H. Yates
IPC: G01N15/14
CPC classification number: G01N15/1429 , G01N35/00871 , G01N2015/1062 , G01N2015/1486 , G01N2035/00891
Abstract: A data logging monitoring instrument and related methods are described. One aspect provides a particle counting instrument, including: one or more sensors; a storage system; and a processing system coupled to the storage system, the processing system being configured to accumulate measurement data ascertained via the one or more sensors in the storage system into one or more log files; wherein the one or more log files are stored in a secure file format that is compatible with other non-particle counting instrument information processing device applications. Other embodiments are described.
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公开(公告)号：US20160202182A1
公开(公告)日：2016-07-14
申请号：US15074278
申请日：2016-03-18
Applicant: Hach Company
Inventor： David T. Crook , Areef A. Moin
IPC: G01N21/64
CPC classification number: G01N21/645 , G01D3/022 , G01N21/643 , G01N2021/6432 , G01N2201/12723
Abstract: One aspect provides a system, including: a sensor adjustment component having: a memory device having adjustment information stored therein; a light engine capable of producing a signal detectable by a light detector of an optical sensor to be adjusted; and one or more processors; where the one or more processors are configured to execute program instructions to operate the light engine to produce a predetermined light pattern detectable by the light detector of the optical sensor to be adjusted; where the predetermined signal pattern comprises the adjustment information; and where the adjustment information configures said light detector that receives said predetermined signal pattern carrying the adjustment information. Other aspects are disclosed.
Abstract translation: 一个方面提供一种系统，包括：传感器调节部件，具有：具有存储在其中的调节信息的存储器件; 光引擎，其能够产生可由待调整的光学传感器的光检测器检测的信号; 和一个或多个处理器; 其中一个或多个处理器被配置为执行程序指令以操作光引擎以产生可由待调节的光学传感器的光检测器检测的预定光图案; 其中所述预定信号模式包括所述调整信息; 并且其中所述调整信息配置所述光检测器，所述光检测器接收携带所述调整信息的所述预定信号图案。 公开其他方面。
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公开(公告)号：US20160161446A1
公开(公告)日：2016-06-09
申请号：US15019598
申请日：2016-02-09
Applicant: Hach Company
Inventor： Karl Lewis King
IPC: G01N27/416 , G01N27/30
CPC classification number: G01N27/4167 , G01N27/302 , G01N27/333 , G01N27/36 , Y10T29/49117
Abstract: An aspect provides a low slope electrode device, including: a low slope measuring electrode for placement in an external sample solution, said low slope measuring electrode comprising: an electrode disposed within a glass container including an internal buffer solution and at least partially enclosing the electrode of the low slope measuring electrode, the glass container having two pH sensitive regions; an external buffer container including an external buffer solution and at least partially enclosing one of the two pH sensitive regions; and a separating element that separates the two pH sensitive regions; wherein: a first pH sensitive region of the glass container permits charge flow between the internal buffer solution and the external sample solution; a second pH sensitive region of the glass container permits charge flow between the internal buffer solution and the external buffer solution; the separating element, the first pH sensitive region, and the second pH sensitive region establish a charge flow circuit through the internal buffer solution, the external buffer solution, and the external sample solution; and the charge flow circuit acts as a voltage divider for the low slope measuring electrode. Other aspects are described and claimed.
Abstract translation: 一个方面提供了一种低斜率电极装置，包括：用于放置在外部样品溶液中的低斜率测量电极，所述低斜率测量电极包括：设置在玻璃容器内的电极，包括内部缓冲溶液并且至少部分地包围电极 的低斜率测量电极，玻璃容器具有两个pH敏感区域; 外部缓冲容器，其包括外部缓冲溶液并且至少部分地封闭两个pH敏感区域中的一个; 以及分离所述两个pH敏感区域的分离元件; 其中：玻璃容器的第一pH敏感区域允许内部缓冲溶液和外部样品溶液之间的电荷流动; 玻璃容器的第二pH敏感区域允许内部缓冲溶液和外部缓冲溶液之间的电荷流动; 分离元件，第一pH敏感区域和第二pH敏感区域通过内部缓冲溶液，外部缓冲溶液和外部样品溶液建立充电流动回路; 充电流路作为低斜率测量电极的分压器。 描述和要求保护其他方面。
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