发明名称 |
On-site measurement of the density or thermal resistance of a material |
摘要 |
A device suitable for conducting an on-site measurement of the density and/or R-value of a gas-permeable material is provided, comprising: a chamber comprising a first port and a second port; a diffuser in fluid communication with the second port of the chamber, wherein the diffuser comprises a diffuser port for conveying a gas flow to or from a gas-permeable material, and wherein the area of the diffuser port is greater than the area of the second port; a pressure sensor arranged to measure the pressure in the chamber; a temperature sensor arranged to measure the temperature of a gas in the chamber; and a relative humidity sensor arranged to measure the relative humidity in the chamber.
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申请公布号 |
US7055371(B2) |
申请公布日期 |
2006.06.06 |
申请号 |
US20040862204 |
申请日期 |
2004.06.07 |
申请人 |
JOHNS MANVILLE |
发明人 |
BABINEAU, JR. FRANCIS J.;TINIANOV BRANDON DILLAN;FELLINGER THOMAS JOHN;BRATSCH ANGELA ROBIN |
分类号 |
G01N9/00;G01N9/26;G01N9/32;G01N15/08 |
主分类号 |
G01N9/00 |
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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