Piezoelectric cantilever beam contact vibration-based superficial tissue elastic imaging system

The invention discloses a piezoelectric cantilever beam contact vibration-based superficial tissue elastic imaging system and an imaging method. According to the system, elastic modulus of a tissue or organ to be detected is calculated through detected piezoelectric detection beam contact resonance frequency so as to form an elastic modulus distribution image, and further, quantitative evaluation is performed on the rigidity and a health state of a target to be detected. The system is suitable for elastic imaging of surface layer tissues, particularly elastic imaging of organs such as mammary gland and thyroid gland. The system has high detection sensitivity to hardened tissues and has stronger resolving power to the hardened tissues than touch sensation of fingers of a human body. The resolving power of imaging of the system can reach millimeter level and can finish accurate imaging of edges of the hardened tissues, so that the tissues can be more timely and accurately evaluated.