| 摘要 |
The invention relates to a device for measuring changes in materials caused by gas streams (material probe), comprising a probe body (1). Said probe body (1) has a region used for measuring (measuring region) and has at least one elongated hollow body in said measuring region. The probe body also has at least one surface region made of the material to be investigated, said surface region being on the exterior of the probe and at least in the measuring region. At least one fluid conduit (2) extends in the interior of the probe body (1), by means of which conduit the probe can be cooled or heated by a fluid. The material probe also comprises at least two temperature sensors (a1-a4, aX, y1-y4, yX), arranged on the inner face of the surface, for measuring and controlling individual temperature gradients in the measuring region and/or measuring and controlling the range of temperature gradients. |
