초록 ▼

A method of and device for contactless measuring of temperature of an object independently of its emissivity in infrared and/or visible range, is based on finding, by means of Planck law of radiation a curve which is the sum of the radiance or radiant intensity of a radiator having temperature and e

A method of and device for contactless measuring of temperature of an object independently of its emissivity in infrared and/or visible range, is based on finding, by means of Planck law of radiation a curve which is the sum of the radiance or radiant intensity of a radiator having temperature and emissivity of the object and the radiance or radiant intensity of a radiator having the temperature of environment, the latter radiation being reflected by the object with the reflectivity ree

대표청구항 ▼

A device for contactless actual temperature measurement of an object, comprising: a spectrometer for measuring radiation in discrete wavelength ranges, the spectrometer including a radiation modulator having a plurality of filters for selectively passing a succession of visible and/or infrared radia

A device for contactless actual temperature measurement of an object, comprising: a spectrometer for measuring radiation in discrete wavelength ranges, the spectrometer including a radiation modulator having a plurality of filters for selectively passing a succession of visible and/or infrared radiation beams of radiation emitted by the object corresponding to the transmission ranges of the filters; a detector arranged opposite the modulator for producing electrical output signals proportional to the radiation passing through the modulator; an analog/digital converter connected to the detector via an amplifier; a timing circuit connected to the modulator for supplying to the analog/digital converter clock pulses at a clock frequency which are synchronized with the modulator whereby the analog/digital converter generates digital signals at the clock frequency; a microprocessor programmed for an iterative computation and having an input unit connected to the analog/digital converter and a display unit for indicating the actual temperature, emissivity of the object and the environment temperature; and a controlled deviating mirror tiltable between a first and a second position relative to the object and the environment, the tilting mirror being adjusted so as to direct in the first position thereof the radiation emerging from the object, and in the second position thereof similarly directing the radiation emitted by the environment, into the spectrometer.