MASSIVE DIFFERENTIAL SCANNING CALORIMETRY ANALYSIS METHOD AND APPARATUS

    公开(公告)号:US20240255452A1

    公开(公告)日:2024-08-01

    申请号:US18564060

    申请日:2022-05-24

    IPC分类号: G01N25/48

    CPC分类号: G01N25/4866

    摘要: A method and apparatus of differential scanning calorimetry comprises: during the heating and/or cooling determining at least one of a temperature and a temperature change of the sample and of the reference; controlling a heating and/or cooling power to the sample and/or the reference on the basis of a difference in the temperature and/or the temperature change relative to a predetermined temperature and/or temperature change and/or on the basis of a difference in the temperature and/or the temperature change between the sample and the reference; determining at least one thermodynamic property of the sample and/or a composition of the sample on the basis of at least one of temperature of the sample, temperature change of the sample and heating and/or cooling power to the sample, relative to at least one of temperature of the reference, temperature change of the reference and heating and/or cooling power to the reference.

    MEASURING DEVICE WITH GAS-CONDUCTING ELEMENT AND METHOD FOR RINSING THE MEASURING DEVICE

    公开(公告)号:US20240175830A1

    公开(公告)日:2024-05-30

    申请号:US18517507

    申请日:2023-11-22

    申请人: Anton Paar GmbH

    发明人: Bernhard Bauer

    IPC分类号: G01N25/48

    CPC分类号: G01N25/4813

    摘要: A measuring device, in particular a calorimeter, is described which comprises:



    i) a sensor device which is configured for capturing a measurand with respect to a sample and which comprises:
    ia) a base region, and
    ib) a sample storing region which protrudes from a main surface of the base region and which is configured for storing a sample reception;
    ii) a sensor interior in which the sensor device is at least partially arranged;
    iii) a rinsing gas supply device which is configured for providing a rinsing gas into the sensor interior; and
    iv) a gas-conducting element which covers the sensor interior and which comprises: at least one opening through which the protruding sample storing region at least partially extends, such that a slit between a side wall of the protruding sample storing region and the gas-conducting element remains.

    POLARIZATION IMAGE ACQUISITION APPARATUS AND THERMAL ANALYZER

    公开(公告)号:US20240125724A1

    公开(公告)日:2024-04-18

    申请号:US18370244

    申请日:2023-09-19

    IPC分类号: G01N25/48 G02B21/00 G02B21/36

    摘要: The apparatus is attached to a thermal analyzer including a pair of sample containers and a heating furnace having a window or an opening through which at least the measurement sample can be observed, and includes an attachment unit, a light source, a polarizer constituting a polarizing filter that polarizes irradiation light emitted from the light source, a camera, a half mirror, a rotation mechanism and an analyzer constituting a polarizing filter configured to polarize reflected light through the half mirror and to introduce the resulting polarized light of the reflected light into the camera, in which the polarized light irradiates the sample after passing through the window or opening and then reflects from the sample wherein the analyzer, the half mirror, and the light source are fixed to a fixing member and the rotation mechanism rotates the fixing member in a polarization direction of the analyzer.

    Sensor device for determining heat transfer parameters of a fluid

    公开(公告)号:US11703470B2

    公开(公告)日:2023-07-18

    申请号:US17353076

    申请日:2021-06-21

    申请人: Sensirion AG

    IPC分类号: G01N25/18 G01N25/48

    摘要: A sensor device for determining at least one heat transfer parameter of a gas comprises a sensor unit (10) comprising at least one heater element and at least one temperature sensor. A first (inner) housing (20) receives the sensor unit. The first housing comprises a first membrane (22) allowing a diffusive gas exchange between the exterior and the interior of the first housing. The first housing is received in a second (outer) housing (30). The second housing comprises a second membrane (32) allowing a diffusive gas exchange between the exterior of the second housing and the exterior of the first housing. Thereby temperature gradients inside the first housing are reduced. The second housing can be made of metal and can be disposed on a support plate (40), taking the form of a cap. An auxiliary sensor (50) can be arranged in the space between the first and second housings.

    Devices and methods for measuring natural source zone depletion rates

    公开(公告)号:US11609196B2

    公开(公告)日:2023-03-21

    申请号:US16874258

    申请日:2020-05-14

    摘要: A subsurface monitoring system and method is provided for measuring a rate of change in an amount of a reactive material within a subsurface formation using measurements of thermal parameters at one or more positions within the subsurface without the need for background correction which may lead erroneous calculations and require additional monitoring equipment. The measured thermal parameters may be used to determine the heat generated by the degradation of the reactive material. The method may include measuring a first temperature near the surface of a subsurface region and a second temperature further from the surface. In some instances, an estimated location of a planar subsurface heat source/sink due to exothermic degradation reactions within the subsurface may be selected. With the derived thermal parameters and the estimated location of the subsurface heat source/sink, change rates for the reactive materials in the subsurface region may be determined or estimated.