get_spherical_shell()
Description: This function creates a spherical shell transducer. It is intended to be used independently.
Usage
transducer = get_spherical_shell(radius, rad_curv);
transducer = get_spherical_shell(radius, rad_curv, center);
transducer = get_spherical_shell(radius, rad_curv, center, euler);
Arguments
- radius The radius of the shell in m.
- rad_curv The radius of curvature of the shell in m.
- center a 3x1 or 1x3 array with the center coordinate of the element.
- euler_angles a 3x1 or 1x3 array with the rotation of the element in radian. For details about how FOCUS handles Euler angles, see the documentation for rotate_vector_forward.
Output Parameters
- transducer A FOCUS transducer struct.
Notes
The weight of the transducer is set to 1 and the phase is
set to zero. If you need to focus via phase shifting, you must manually change the phase after the function has run.