Radiometer apparatus for air disturbance detection

摘要: A radiometer apparatus is described that particularly useful for detecting clear air turbulence by sensing infrared radiation. The includes optics directing radiation past a chopper, lens and filter assembly to sensor which produces an analog output signal routed through N-path unit then demodulated integrated averaging integrator produce temperature indicative differences determination of the presence in area being examined apparatus, intergrator providing high noise ratio. An automatic calibration also provided provide stability reliability apparatus.