Scanning apparatus and method
Patent 4787247 Issued on November 29, 1988. Estimated Expiration Date: 
January 14, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 14, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesUltrasound imaging system Piezoelectric scanning systems for ultrasonic transducers Oscillating ultrasound scanhead Resonant electromechanical oscillator Ultrasonic transducer probe drive mechanism with position sensor Surface testing apparatus Patent #: 4682498 InventorsAssigneeApplicationNo. 07/003157 filed on 01/14/1987US Classes:73/620, By reflected wave600/446, Hand-held unit73/633Having transducer scanning meansExaminersPrimary: Chapman, Jeanette E.Attorney, Agent or FirmInternational ClassesG10K 11/00 (20060101)G10K 11/35 (20060101) G01N 29/265 (20060101) G01N 29/26 (20060101) AbstractA scanning apparatus and method for scanning an object including a frame, a transducer for obtaining information from an object and a motor oscillating the transducer. The motor comprises a spring/solenoid combination driven at the resonant frequency of the spring/motor system. The actual displacement of the transducer is measured and compared to a desired displacement to provide a control signal to the motor. The scanning apparatus is at least partially enclosed by a housing containing a heat transfer fluid for damping the resonant vibration of the apparatus. | |
