TEMPERATURE INDICATOR FOR ELECTRICAL EQUIPMENT

    公开(公告)号:US20200225093A1

    公开(公告)日:2020-07-16

    申请号:US16707428

    申请日:2019-12-09

    申请人: Bruce W. Nichols

    发明人: Bruce W. Nichols

    摘要: A system for determining when an electrical contact or other component reaches a predetermined temperature. In operation, a trace material is dispersed into a surrounding environment (e.g., head space within a compartment above insulating oil), where the trace material is detected. A barrier may be ruptured or broken by temperature-induced gas pressure, or pierced by a spring-loaded member that is located within the same section that contains the trace material, and devices may be provided for moving the trace material through the foil barrier as the barrier is ruptured. The barrier may be opened solely by internal gas pressure. According to another embodiment, improved fail-safe operation may be achieved by providing a spring-loaded member and configuring the barrier to be ruptured by the pressure of the detectable gas material before the barrier is ruptured by the spring-loaded member.

    TEMPERATURE LOCALE SENSORS AND RELATED METHODS

    公开(公告)号:US20200158577A1

    公开(公告)日:2020-05-21

    申请号:US16193366

    申请日:2018-11-16

    IPC分类号: G01K11/02

    摘要: Temperature locale sensors include an enclosure defining a sealed volume with a phase-change material therein at a known pressure. The phase-change material is formulated to exhibit a gas-to-solid phase change, without condensing to a liquid phase, at the known pressure and a targeted temperature, i.e., the material's “deposition temperature.” The phase-change material—while at least partially in gaseous form, either initially or after sublimation—is exposed to an environment with temperatures varying by location, including a maximum temperature above the phase-change material's deposition temperature and other temperatures at or below the deposition temperature. The gaseous phase-change material, in a location at the deposition temperature, solidifies from its gaseous phase to form solid grain deposits on a surface within the enclosure of the sensor. The solid deposits precisely identify the location of the specific, targeted deposition temperature.

    Integrated acoustic emission transducer apparatus and methods

    公开(公告)号:US10373598B2

    公开(公告)日:2019-08-06

    申请号:US15710244

    申请日:2017-09-20

    摘要: Integrated acoustic emission transducer apparatus and methods are described. An example apparatus includes an acoustic emission sensor having a data extractor and a process variable determiner integrated within the acoustic emission sensor. The acoustic emission sensor is to generate an acoustic emission signal. The data extractor is to extract signal data from the acoustic emission signal. The process variable determiner is to determine process variable data based on the extracted signal data. The process variable data includes at least one of leakage rate data, flow rate data, flow capacity data, flow area data, flow velocity data, mass accumulation data, or volume accumulation data.

    Temperature indicator for electrical equipment

    公开(公告)号:US09939326B2

    公开(公告)日:2018-04-10

    申请号:US15597623

    申请日:2017-05-17

    申请人: Bruce W. Nichols

    发明人: Bruce W. Nichols

    摘要: A system for determining when an electrical contact or other component reaches a predetermined temperature. In operation, a trace material is dispersed into a surrounding environment (e.g., head space within a compartment above insulating oil), where the trace material is detected. A barrier may be ruptured or broken by temperature-induced gas pressure, or pierced by a spring-loaded member that is located within the same section that contains the trace material, and devices may be provided for moving the trace material through the foil barrier as the barrier is ruptured. The barrier may be opened solely by internal gas pressure. According to another embodiment, improved fail-safe operation may be achieved by providing a spring-loaded member and configuring the barrier to be ruptured by the pressure of the detectable gas material before the barrier is ruptured by the spring-loaded member.

    TEMPERATURE INDICATOR FOR ELECTRICAL EQUIPMENT

    公开(公告)号:US20170248473A1

    公开(公告)日:2017-08-31

    申请号:US15597623

    申请日:2017-05-17

    申请人: Bruce W. Nichols

    发明人: Bruce W. Nichols

    摘要: A system for determining when an electrical contact or other component reaches a predetermined temperature. In operation, a trace material is dispersed into a surrounding environment (e.g., head space within a compartment above insulating oil), where the trace material is detected. A barrier may be ruptured or broken by temperature-induced gas pressure, or pierced by a spring-loaded member that is located within the same section that contains the trace material, and devices may be provided for moving the trace material through the foil barrier as the barrier is ruptured. The barrier may be opened solely by internal gas pressure. According to another embodiment, improved fail-safe operation may be achieved by providing a spring-loaded member and configuring the barrier to be ruptured by the pressure of the detectable gas material before the barrier is ruptured by the spring-loaded member.

    Food thermometer and method of using thereof

    公开(公告)号:US10670470B2

    公开(公告)日:2020-06-02

    申请号:US16037832

    申请日:2018-07-17

    IPC分类号: G01K11/02 G01K1/02

    摘要: An indication of an ambient temperature near food is received using an ambient temperature sensor of a food thermometer, and an indication of a food temperature at an interior portion of the food is received using one or more thermal sensors of the food thermometer. A rate at which the indication of the food temperature changes is determined, and the completion time is estimated based on at least the indication of the ambient temperature near the food and the rate at which the indication of the food temperature changes. In one aspect, a resting temperature rise is estimated based on the rate at which the indication of the food temperature changes and at least one of a food type, a thickness of the food, and an amount of time for the indication of the food temperature to increase by a temperature rise value during a period of cooking.

    Standards for the calibration of a vacuum thermogravimetric analyzer for determination of vapor pressures of compounds
    8.
    发明申请
    Standards for the calibration of a vacuum thermogravimetric analyzer for determination of vapor pressures of compounds 失效
    用于确定化合物的蒸汽压的真空热重分析仪的校准标准

    公开(公告)号:US20050163191A1

    公开(公告)日:2005-07-28

    申请号:US11086599

    申请日:2005-03-21

    IPC分类号: G01K11/02 G01N5/00 G01K7/00

    摘要: The invention provides a set of standards for accurately calibrating a vacuum thermogravimetric analyzer (VTGA). The invention solves the problem of calibrating a VTGA by using the actual magnetic transitions and associated transition temperatures, or Curie temperatures, TC's, of a set of standards which can be used in-situ at the location of the sample holder obviating the difficulties associated with indirect methods of calibration. The set of standards permits accurate calibration through sufficiently numerous calibration points over a rather limited low-temperature range for determining vapor pressures of compounds. The set of temperature calibration standards is fabricated from slugs of ferromagnetic material. The composition of the ferromagnetic material in each slug is altered by alloying a ferromagnetic constituent with a non-ferromagnetic constituent to provide a plurality of standards with different Curie temperature over the limited temperature range. In particular, an embodiment of the invention using alloys of Ni and Cu where the amount of Cu varies between less than 0% up to approximately 50% by weight provides a set of standards that can span temperatures in any selected range from approximately 300 C to −150 C respectively. Prior to use in calibration, each slug is preferably placed in a magnetic field having a magnitude sufficient to provide a well defined magnetic transition at the Curie temperature.

    摘要翻译: 本发明提供了一套精确校准真空热重分析仪(VTGA)的标准。 本发明解决了通过使用可以在现场使用的一组标准的实际磁转变和相关转变温度,或居里温度T C C来校准VTGA的问题。 样品架的位置消除了与间接校准方法相关的困难。 该组标准允许通过足够多的校准点在相当有限的低温范围内进行精确校准,以确定化合物的蒸气压。 该组温度校准标准由铁磁材料的s条制成。 通过将铁磁性成分与非铁磁性成分合金化来改变每个块中的铁磁材料的组成,以在有限的温度范围内提供具有不同居里温度的多种标准。 特别地,使用Ni和Cu合金的本发明的一个实施方案,其中Cu的量在小于0%至大约50重量%之间变化,提供了一套标准,可以将温度范围从约300℃到 -150℃。 在用于校准之前,每个块塞优选地放置在具有足以在居里温度下提供良好限定的磁转变的量级的磁场中。

    METHOD FOR CALIBRATING A VACUUM THERMOGRAVIMETRIC ANALYZER FOR DETERMINATION OF VAPOR PRESSURES OF COMPOUNDS
    9.
    发明申请
    METHOD FOR CALIBRATING A VACUUM THERMOGRAVIMETRIC ANALYZER FOR DETERMINATION OF VAPOR PRESSURES OF COMPOUNDS 有权
    用于校准真空热分析仪的方法,用于确定化合物的蒸气压

    公开(公告)号:US20050025214A1

    公开(公告)日:2005-02-03

    申请号:US10632507

    申请日:2003-08-01

    摘要: The invention provides a method for accurately calibrating a vacuum thermogravimetric analyzer (VTGA). The invention solves the problem of calibrating a VTGA by using the actual magnetic transitions and associated transition temperatures, or Curie temperatures, TC's, of a set of standards which can be used in-situ at the location of the sample holder obviating the difficulties associated with indirect methods of calibration. The invention encompasses a method of using a set of calibration standards comprised of a plurality of ferromagnetic slugs to provide a temperature calibration for a VTGA. The method permits accurate calibration through sufficiently numerous calibration points over a rather limited low-temperature range for determining vapor pressures of compounds. Through the use of these standards, highly accurate measurements can be made of the vapor pressures of critical hard disk drive compounds, such as lubricants, and corrosion inhibitors, that are crucial to competitive disk drive technology.

    摘要翻译: 本发明提供了一种精确校准真空热重分析仪(VTGA)的方法。 本发明解决了通过使用可以在样品架的位置原位使用的一组标准的实际磁转变和相关转变温度或居里温度TC来校准VTGA的问题,从而避免了与 间接校准方法。 本发明包括使用由多个铁磁段组成的一组校准标准来提供VTGA的温度校准的方法。 该方法允许通过足够多的校准点在相当有限的低温范围内进行精确校准,以确定化合物的蒸气压。 通过使用这些标准,可以对竞争对手的磁盘驱动器技术至关重要的关键硬盘驱动器化合物(如润滑剂和腐蚀抑制剂)进行高精度的测量。

    Standards for the calibration of a vacuum thermogravimetric analyzer for determination of vapor pressures of compounds
    10.
    发明申请
    Standards for the calibration of a vacuum thermogravimetric analyzer for determination of vapor pressures of compounds 审中-公开
    用于确定化合物的蒸汽压的真空热重分析仪的校准标准

    公开(公告)号:US20050025212A1

    公开(公告)日:2005-02-03

    申请号:US10632650

    申请日:2003-08-01

    CPC分类号: G01K11/02 G01N5/00

    摘要: The invention provides a set of standards for accurately calibrating a vacuum thermogravimetric analyzer (VTGA). The invention solves the problem of calibrating a VTGA by using the actual magnetic transitions and associated transition temperatures, or Curie temperatures, TC's, of a set of standards which can be used in-situ at the location of the sample holder obviating the difficulties associated with indirect methods of calibration. The set of standards permits accurate calibration through sufficiently numerous calibration points over a rather limited low-temperature range for determining vapor pressures of compounds. The set of temperature calibration standards is fabricated from slugs of ferromagnetic material. The composition of the ferromagnetic material in each slug is altered by alloying a ferromagnetic constituent with a non-ferromagnetic constituent to provide a plurality of standards with different Curie temperature over the limited temperature range. In particular, an embodiment of the invention using alloys of Ni and Cu where the amount of Cu varies between less than 10% up to approximately 50% by weight provides a set of standards that can span temperatures in any selected range from approximately 300 C to −150 C respectively.

    摘要翻译: 本发明提供了一套精确校准真空热重分析仪(VTGA)的标准。 本发明解决了通过使用可以在样品架的位置原位使用的一组标准的实际磁转变和相关转变温度或居里温度TC来校准VTGA的问题,从而避免了与 间接校准方法。 该组标准允许通过足够多的校准点在相当有限的低温范围内进行精确校准,以确定化合物的蒸气压。 该组温度校准标准由铁磁材料的s条制成。 通过将铁磁性成分与非铁磁性成分合金化来改变每个块中的铁磁材料的组成,以在有限的温度范围内提供具有不同居里温度的多种标准。 特别地,使用Ni和Cu合金的本发明的一个实施方案,其中Cu的量在小于10重量%至大约50重量%之间变化,提供了一套能够跨越从约300℃至 -150℃。