Apparatus for measuring the heat radiation of a test object, method for measuring the heat radiation of a test object and cell for measuring the heat radiation

摘要

A device (100) for measuring the heat radiation of a measurement object, comprising a measurement cell (10) having a base (16) which is a wavelength of heat radiation transmitting wall of a housing section for housing the measurement object, wherein the measurement object (12) to is a liquid or liquid containing body, a first lens (20) having a flat surface in which a part of a sphere is cut away such that the cut surface forms the flat surface, the measuring cell being arranged such that when the base the measuring cell is in abutment with the planar surface of the first lens, the focal point of a second lens comprising the first lens and the base for detecting the heat radiation across the first lens, with at least a part of the measuring object lying on the base or on the Base adjoins, wherein the device further comprises: a position control section (60), which either the Me ssobjekt with respect to the first lens or the first lens with respect to the measuring object in the direction of the optical axis controls such that both abut each other and may be separated from each other; a vibration control section (40) which oscillates either the measurement object with respect to the first lens or the first lens with respect to the measurement object and further controls the oscillation frequency; and a detection section (70) that detects heat radiation via the first lens.