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An apparatus for temperature and fluid relative vapour pressure measurement and associated methods

A vapor pressure and fluid technology, applied in the field of environmental sensors, can solve problems such as the inability to obtain low-cost integrated flexible temperature and humidity sensors

Active Publication Date: 2015-09-09
PROVENANCE ASSET GRP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently, low cost integrated flexible temperature and humidity sensors are not available in the market

Method used

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  • An apparatus for temperature and fluid relative vapour pressure measurement and associated methods
  • An apparatus for temperature and fluid relative vapour pressure measurement and associated methods
  • An apparatus for temperature and fluid relative vapour pressure measurement and associated methods

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Embodiment Construction

[0052] It has been found that the resistance of graphene oxide depends exponentially on the temperature and relative humidity of the environment in which it is located. This situation is illustrated in Figures 1a and 1b, which show the complex impedance of graphene oxide as a function of temperature (at a relative humidity of 45%) and relative humidity (at a temperature of 25 °C), respectively. Spectrum.

[0053] The temperature and humidity dependencies are not well understood, but can be related to the layered structure of the material. as in figure 2 As shown in , graphene oxide includes a stack of pseudo-two-dimensional platelets 201 (with interstitial spacing "d") that allow water 202 to permeate through the material. Permeability depends on both the temperature and relative humidity of the environment. image 3 The rate of water evaporation through an open pore and covering the same pore with a 0.5 μm thick graphene oxide film is shown. At 100% relative humidity, wat...

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Abstract

An apparatus including first and second sensor elements, the first sensor element includes a first sensor material. The second sensor element includes a second sensor material. The first sensor material is configured such that an electrical property of the first sensor material is dependent upon the temperature of the environment in which the first and second sensor elements are located. The second sensor material is configured such that the same electrical property of the second sensor material is dependent upon the relative vapor pressure of a fluid in the environment in which the first and second sensor elements are located, the respective temperature and fluid relative vapor pressure dependencies of the first and second sensor materials allowing the temperature and fluid relative vapor pressure of the environment to be determined based on combined measurements of the electrical property of the first and second sensor materials in the environment.

Description

technical field [0001] The present disclosure relates to the field of environmental sensors, associated methods and apparatus, and is particularly concerned with low cost integrated sensors capable of measuring the temperature of the surrounding environment and the relative vapor pressure of fluids. Certain disclosed example aspects / embodiments relate to portable electronic devices, in particular so-called hand-portable electronic devices, which in use may be hand-held (although in use they may be placed on a cradle). Such hand-portable electronic devices include so-called Personal Digital Assistants (PDAs) and tablet PCs. [0002] A portable electronic device / apparatus according to one or more disclosed example aspects / embodiments may provide one or more audio / text / video communication functions (e.g., telecommunications, video communication and / or text transmission, Short Message Service (SMS) ) / Multimedia Messaging Service (MMS) / email sending and receiving functions, intera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/12G01K7/34
CPCG01K1/00G01K7/00G01N7/00G01N27/026G01N27/223
Inventor S·博里尼R·怀特E·斯皮戈内M·阿斯特莱D·魏J·基维奥亚T·吕海宁
Owner PROVENANCE ASSET GRP LLC