发明名称 |
Method and apparatus for determining the amount of a substance emitted by diffusion from a surface such as a derm surface |
摘要 |
A method and apparatus are provided for measuring quantitatively the amount of liquid and convection heat emitted from a surface by diffusion. When the surface is a derm surface the transepidermal water loss is measurable by a cylindrical shield device in which one open end is engaged with the derm layer and the other open end is exposed to the surroundings and within the cylindrical shield are placed a pair of temperature transducers and a pair of humidity transducers respectively positioned orthogonally to the derm surface at first and second known distances therefrom. The temperature and humidity readings at these two distances from the surface of the derm are processed by a circuit device to calculate the amount of water evaporated per surface unit over a given time interval.
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申请公布号 |
US4066068(A) |
申请公布日期 |
1978.01.03 |
申请号 |
US19750635348 |
申请日期 |
1975.11.26 |
申请人 |
SERVO MED AB |
发明人 |
NILSSON, GERT ERIK;OBERG, AKE PER |
分类号 |
A61B5/00;A61B5/103;G01N25/56;(IPC1-7):A61B5/00 |
主分类号 |
A61B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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