Device and method for measuring absorbed heat flux in a fire test apparatus
    1.
    发明授权
    Device and method for measuring absorbed heat flux in a fire test apparatus 失效
    测量火灾试验装置中吸收的热通量的装置和方法

    公开(公告)号:US06971792B2

    公开(公告)日:2005-12-06

    申请号:US10681175

    申请日:2003-10-09

    CPC分类号: G01N25/18 G01N25/50

    摘要: A device for measuring the flux received by a specimen in fire test apparatuses has a copper disk or plate of the same dimensions and the same type of surface coating as a typical material specimen, an embedded heating coil and thermocouple, and an insulated sample holder similar to that used for a specimen. The transient response of the embedded thermocouple is measured for several different levels of imposed incident radiation without electrical heating and for several different known levels of electrical heating without any imposed radiation. The principle of Electrical Substitution Radiometry (ESR) is applied, and the transient responses to incident radiation and electrical heating under identical thermal conditions are compared to determine the amount of incident radiation that is actually absorbed by the device while it is being irradiated. The situations are kept thermally identical, thereby insuring that all effects due to heat losses (e.g. convection, radiation and conduction) are exactly the same.

    摘要翻译: 用于测量火灾试验装置中的试样所接收的焊剂的装置具有与典型材料样品,嵌入式加热线圈和热电偶以及相似的绝缘样品架相同尺寸和相同类型的表面涂层的铜盘或板 用于标本。 测量嵌入式热电偶的瞬态响应,对于几个不同电平的施加的入射辐射而不进行电加热,并测量几种不同的已知电加热水平,而没有任何施加的辐射。 应用电子替代辐射计(ESR)的原理,并对相同热条件下的入射辐射和电加热的瞬态响应进行比较,以确定器件在被照射时实际吸收的入射辐射量。 情况保持热相同,从而确保由于热损失(例如对流,辐射和传导)的所有影响完全相同。