Thermal measuring and testing – Temperature measurement – In spaced noncontact relationship to specimen
Patent
1980-08-04
1984-01-24
Yasich, Daniel M.
Thermal measuring and testing
Temperature measurement
In spaced noncontact relationship to specimen
73170R, 250338, 343351, G01J 508
Patent
active
044273061
ABSTRACT:
A radiometer apparatus is described that is particularly useful for detecting clear air turbulence by sensing infrared radiation. The radiometer includes optics for directing infrared radiation past a chopper, lens and infrared filter assembly to a radiation sensor which produces an analog output signal that is routed through an N-path filter unit and then demodulated and integrated by an averaging integrator to produce temperature indicative differences for determination of the presence of clear air turbulence in the area then being examined by the apparatus, the N-path unit and averaging intergrator providing a high signal to noise ratio. An automatic calibration unit is also provided to provide stability and reliability to the apparatus.
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University Patents Inc.
Yasich Daniel M.
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