Abstract:
A resonant armature system (109, 114, 116) for generating a vibrating motion in response to an alternating excitation force includes at least two planar suspension members (109), substantially parallel to each other and separated by a distance. The planar suspension member (109) includes a plurality of independent planar spring members (112) arranged regularly about a central planar region (110) within a planar perimeter region (108). The resonant armature system (109, 114, 116) further includes at least one movable mass (114) positioned between and coupled to the at least two planar suspension members (109) for resonating with the at least two planar suspension members (109) at a fundamental mode resonant frequency.
Abstract:
A VIBRATOR (2) COMPRISING; A MASSIVE, MAGNETIC MEMBER (16) ARRANGED FOR MOVEMENT ABOUT A REFERENCE POSITION; AND ELECTROMAGNETIC ACTUATOR MEANS (12) FOR CAUSING SAID MEMBER TO MOVE; AND MAGNETIC SUSPENSION MEANS (8, 10) ARRANGED ON EITHER SIDE OF SAID MEMBER FOR SUSPENDING SAID MEMBER THEREBETWEEN. (FIG. 1)
Abstract:
A resonant armature system (109, 114, 116) for generating a vibrating motion in response to an alternating excitation force includes at least two planar suspension members (109), substantially parallel to each other and separated by a distance. The planar suspension member (109) includes a plurality of independent planar spring members (112) arranged regularly about a central planar region (110) within a planar perimeter region (108). The resonant armature system (109, 114, 116) further includes at least one movable mass (114) positioned between and coupled to the at least two planar suspension members (109) for resonating with the at least two planar suspension members (109) at a fundamental mode resonant frequency.
Abstract:
A vibrator (2) comprising: a massive, magnetic member (16) arranged for movement about a reference position; and electromagnetic actuator means (12) for causing said member to move; and magnetic suspension means (8, 10) arranged on either side of said member for suspending said member therebetween.
Abstract:
A resonant armature system (109, 114, 116) for generating a vibrating motion in response to an alternating excitation force comprises at least two planar suspension members (109), substantially parallel to each other and separated by a distance. The planar suspension member (109) comprises a plurality of independent planar spring members (112) arranged regularly about a central planar region (110) within a planar perimeter region (108). The resonant armature system (109, 114, 116) further comprises at least one movable mass (114) positioned between and coupled to the at least two planar suspension members (109) for resonating with the at least two planar suspension members (109) at a fundamental mode resonant frequency.
Abstract:
A taut armature reciprocating impulse transducer (100) includes an electromagnetic driver (24, 26) which effects an alternating electromagnetic field in response to an input signal; an armature (12), including an upper planar suspension member (14) having a radial axis (50) therethrough and a lower planar suspension member (16) having a radial axis (52) therethrough coupled to the electromagnetic driver (24, 26), the radial axis (50) is oriented substantially perpendicular to the radial axis (52); and a magnetic motional mass (18) which is suspended between the upper and lower planar suspension members (14, 16), and which is coupled to the alternating electromagnetic field for alternately moving the magnetic motional mass (18) in response thereto. Movement of the magnetic motional mass (18) is transformed through the upper and lower planar suspension members (14, 16) and the electromagnetic driver (24, 26) into motional energy.