OPTICAL DOPPLER TOMOGRAPHY SYSTEM AND METHOD FOR DETECTING DOPPLER FREQUENCY THEREOF

PURPOSE: An optical doppler tomography system and a method for detecting doppler frequency thereof are provided to accurately detect the angle between an optical signal and an object and to measure the speed of the object. CONSTITUTION: An optical doppler tomography system comprises a tilt sensor, an OCT(Optical Coherence Tomography) signal processing unit(31), and an ODT(Optical Doppler Tomography) signal processing unit(32). The tilt sensor is installed on a probe irradiating the optical signal to the object from the optical tomography system and detects the tilt angle of the probe. The OCT signal processing unit detects the tilt angle of the object from the OCT signals detected by the B-mode scan or the C scan of the OCT signals detected from the optical tomography system. The ODT signal processing unit detects the angle between the object and the probe using the angle of the probe detected from the tilt sensor and the angle of the object detected from the OCT signal processing unit and detects doppler frequency from the OCT signal using the detected angle.