Patent ID: 11898993
Assignee: LABCYTE INC.
Field: Measurement (Instruments)
Classification: CPC G  B  H | IPC B  G  H

Claim 58:
59. A method of performing ultrasound testing of a structure, the method comprising:
with a fluid impermeable transducer comprising:
a casing;
a fluid impermeable transducer head comprising a metal focusing lens, wherein the fluid impermeable transducer head and the casing comprise titanium, the fluid impermeable transducer head having a back surface and a front surface, the metal focusing lens being disposed on the front surface and configured to focus ultrasound towards a focal point; and
an actuator bonded to the back surface of the fluid impermeable transducer head and operable to generate oscillatory mechanical vibration of the metal focusing lens so that ultrasound is emitted from the metal focusing lens towards the focal point, wherein the casing and fluid impermeable transducer head are connected in a fluid impermeable manner to prevent ingress of liquid into the casing, wherein the front surface of the fluid impermeable transducer head comprises:
a peripheral portion surrounding the metal focusing lens; and

an attenuation layer interfaced with the peripheral portion and configured to absorb ultrasonic energy emitted through the peripheral portion from the actuator;

immersing the metal focusing lens in an acoustic medium in fluid contact with the structure;
generating an acoustic pulse by the actuator and directed at a scanned region of the structure;
receiving an echo of the acoustic pulse corresponding to the scanned region; and
determining a physical parameter of the scanned region of the structure based on a characteristic of the echo.