| 摘要 |
The technical solution concerns of surface probe for measuring thermo physical properties of materials transient method. Surface probe consists of a hollow body (9), the protective barrier (10), which closes one side of the hollow body (9) and on the other hand, is adapted to surface contact with the material being measured. The probe further comprises a sensor (1) in disk, placed in the of the hollow body (9) to the protective barrier (10), wherein the sensor (1) is provided with two side of the contact strips (2, 3) and the set (4) of heating resistors with the same resistance value. These are evenly distributed along the circumference of a circle concentric with the disc and the pickup diameter of close to the outside diameter of the disc reader. The individual heating resistors set (4) are electrically connected such that the resistor in each set (4) of heating resistors is the same amount of heat output. In doing so, a of set (4) heating resistors as a whole is electrically led out to the end of the first contacts the contact strip (2). Image sensor (1) is equipped with two separate sets (5, 6) temperature. The sensors belonging to every one set (5, 6) of temperature sensors are uniformly distributed on a circle concentric with the disc sensor (1) and are mutually connected such that the output signal sets (5, 6) corresponds to the mean temperature sensors at the different elements of the following sets (5, 6). The output sets (5, 6) of temperature sensors are brought out to the individual electrical contacts to the second end of the contact strip (3). |
