Temperature distribution measuring device

摘要

The measuring device has an infrared sensor (9) with individual sensor elements for detecting the infrared radiation emitted from the measured object (5). The radiation is received through slits (3s) in the wall of a rotatable cylinder (3) that encloses the infrared sensor. The latter cylinder is enclosed by a rotating coaxial outer cylinder (4) with a number of slit blocks formed of several slits (4s), which are shorter than the slits in the inner cylinder. The slit blocks are arranged at a given angle to one another at defined heights along the cylinder axis. The two cylinders rotate together, to collimate infrared rays onto the infrared sensor, as they pass through a slit in each sensor.