PORTABLE ELECTROCHEMICAL NUTRIENT TESTING DEVICE FOR SOIL HEALTH MONITORING

    公开(公告)号:US20240353370A1

    公开(公告)日:2024-10-24

    申请号:US18290956

    申请日:2022-09-20

    摘要: The present disclosure proposes a portable, battery operated, calibration free, soil independent electrochemical nutrient testing device for soil health monitoring that is designed for in-field nutrient analysis and aids to monitor soil health accurately on a regular basis. The portable electrochemical nutrient testing device for soil health monitoring, comprises a function generator block, at least one screen-printed electrochemical sensor, working electrode, counter electrode, reference electrode, plurality of contact pads, voltage control module, data acquisition module, micro-controller unit, display unit, a processing module, and a location intelligence module. The portable electrochemical nutrient testing device doesn't require prior conditioning and calibration of the electrodes and does not require complex sample preparation using multiple reagents.

    Transistor comprising a ceramic and an ionogel

    公开(公告)号:US12123844B2

    公开(公告)日:2024-10-22

    申请号:US17266909

    申请日:2019-12-19

    申请人: Robert Bosch GmbH

    摘要: A transistor for detecting gases in the ambient air. The transistor includes a plurality of electrodes with one electrode being a gate electrode. At least one electrode is individually coated by a ceramic. An ionogel connects all electrodes with each other, the ionogel being an ionic liquid immobilized by a matrix. The use of such a transistor as an air-quality sensor is described. A process for making the transistor is also described. The process includes providing a plurality of electrodes, wherein one of the electrodes is a gate electrode; individually depositing a ceramic precursor on at least one of the plurality of electrodes; and connecting the plurality of electrodes with an ionogel, the ionogel being an ionic liquid immobilized by a matrix. A transistor produced by the process is also described.

    System and method for measuring a variable of a liquid

    公开(公告)号:US12078609B2

    公开(公告)日:2024-09-03

    申请号:US17130874

    申请日:2020-12-22

    发明人: Fred Kohlmann

    摘要: A system for measuring a variable of a liquid and a method operation the system is disclosed. The system comprises: a sensor located on an end section of an elongated sensor support and embodied to measure the variable; a containment device that is open at the top; the containment device including: a bottom section given by a liquid impermeable retainment basin, a top section having a side wall surrounding an interior of the top section and apertures extending through the side wall of the top section; and fasteners embodied to at a measurement site mount the sensor support in a fixed sensor support position in relation to a fixed device position of the containment device such that the sensor is located inside the retainment basin.

    ION SENSOR, ION SENSOR MANUFACTURING METHOD, AND ION MEASUREMENT METHOD

    公开(公告)号:US20240230580A9

    公开(公告)日:2024-07-11

    申请号:US18397620

    申请日:2023-12-27

    IPC分类号: G01N27/333 G01N27/30

    CPC分类号: G01N27/3335 G01N27/301

    摘要: An ion sensor is disclosed that includes an ion selective electrode including a first internal solid layer including a first insertion material, and a first ion conductive ceramic, an ion selective membrane provided on the first internal solid layer, a reference electrode including a second internal solid layer including a second insertion material, and a second ion conductive ceramic, an ionic liquid containing membrane provided on the second internal solid layer, and an insulator on which the ion selective electrode and the reference electrode are arranged.

    SYSTEM AND METHOD FOR SELF-CALIBRATING OF ION SELECTIVE ELECTRODES BASED ON DIFFERENTIAL VOLTAGE MEASUREMENT

    公开(公告)号:US20240219344A1

    公开(公告)日:2024-07-04

    申请号:US18396969

    申请日:2023-12-27

    IPC分类号: G01N27/416 G01N27/333

    摘要: A method of temperature self-calibrating ion-selective electrodes (ISEs) is disclosed which includes calibrating at least two ISEs against a reference electrode (RE) in a calibration solution with a predetermined concentration as the temperature of the calibration solution varies according to a known schedule, wherein the calibration of the at least two ISEs includes determining calibration parameters of each of the at least two ISEs with respect to the RE, placing the at least two calibrated ISEs and the RE into a field solution for determining one or more field parameters of the field solution, measuring voltage across a first of the at least two calibrated ISEs and the RE (Vi), measuring voltage across a second of the at least two calibrated ISEs and the RE (Vi+1), determining Vi−Vi+1, and determining the one or more field parameters.

    A SYSTEM, DEVICE AND METHOD FOR DETECTION AND IDENTIFICATION OF SPECIES IN A SAMPLE WITH AN IONIC EXCHANGE MEMBRANE

    公开(公告)号:US20240183809A1

    公开(公告)日:2024-06-06

    申请号:US18553086

    申请日:2022-03-29

    申请人: Oboe IPR AB

    摘要: The present disclosure relates to a system (100) for detection and identification of at least one species in a sample in an ionic exchange membrane (110), comprising an ion exchange membrane (110), an impedance analyser (120), source (141) and target electrodes (142), a voltage and/or current source (140) arranged to provide an electric potential difference, a computer (170), and at least two impedance electrodes (121, 122) arranged at the ion exchange membrane (110) and connected to the impedance analyser (120). The source (141) and target electrodes (142) are connected to said source (140), and are arranged to upon addition of source (151) and target electrolyte (152) be in ionic contact with a first (111) and second region (112) of the ion exchange membrane (110) respectively. The computer (170) is arranged to obtain source data comprising voltage data and/or current data from said source (140); obtain impedance data from the impedance analyser (120); and determine the presence of said at least one species in said sample based on the obtained source data, the obtained impedance data, and predetermined reference data for the ion exchange membrane (110).

    Automated analyzer, automatic analysis system, and automatic sample analysis method

    公开(公告)号:US11977050B2

    公开(公告)日:2024-05-07

    申请号:US17284121

    申请日:2019-10-30

    摘要: An analysis unit 111 for automatically analyzing a sample comprises a sample dispensing nozzle 2 for dispensing the sample and an electrolyte measurement unit 114 for carrying out internal standard liquid measurement one or more times at least before measuring the electric potential of the sample. If the electrolyte measurement unit 114 is to carry out the electric potential measurement of the sample in succession, a different internal standard liquid measurement operation is carried out before the electric potential measurement than if the electric potential measurement is not to be carried out in succession and there are to be gaps between measurement intervals. This results in the provision of an automated analyzer, automatic analysis system, and automatic sample analysis method that make it possible to reduce the influence of ambient temperature on electrolyte measurement, ensure measurement accuracy, and enhance overall device processing capacity.