发明名称 |
Apparatus for the rapid determination of the moisture content of a material |
摘要 |
A device for determining the moisture content of a material which includes a micro wave heating unit (1) for heating a sample of the material which is under investigation and a weighing device (3) for weighing the sample during heating and providing signals representing a series of measurements of the weight of the sample at specific times. The weighing device is connected to a processing unit (4) which is a microprocessor and which includes a computer (9) which produces signals representing the loss of weight of the sample in the course of heating and which computes the parameters of a asymptotic function and which represents the loss of weight of the sample in the course of time. There is also a calculator (11) for determining the differences between two asymptotic values, and a comparator (12) for comparing the differences with a reference value representing the acceptable uncertainty in regard to the moisture content of the material. There is also a restoring device for restoring the asymptotic values when the differences reach values which are equal to or less than the reference value.
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申请公布号 |
US4750143(A) |
申请公布日期 |
1988.06.07 |
申请号 |
US19860830228 |
申请日期 |
1986.02.18 |
申请人 |
INSTITUT DE RECHERCHES SIDERURGIE FRANCAISE |
发明人 |
HEITZ, GEORGES;BOURY, BERNARD;PHILIPPE, JEAN |
分类号 |
G01N9/36;G01N5/04;(IPC1-7):G01N5/02;G01R27/26 |
主分类号 |
G01N9/36 |
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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