A sensor element includes a piezoelectric body and a plurality of electrodes. The piezoelectric body, when viewed on a plane, includes a base part and at least one arm part extending from the base part. The plurality of electrodes are located on a surface of the arm part. The piezoelectric body, when viewed on the plane, further includes a frame part which surrounds the base part and the at least one arm part and upon which the base part is bridged.

A vibrator device includes a vibrator element, and a support substrate configured to support the vibrator element. The vibrator element includes a drive arm provided with a drive signal electrode and a drive constant-potential electrode, and a detection arm provided with a detection signal electrode and a detection constant-potential electrode. The support substrate includes a base, and a drive signal interconnection electrically coupled to the drive signal electrode, a drive constant-potential interconnection electrically coupled to the drive constant-potential electrode, and a detection signal interconnection electrically coupled to the detection signal electrode all provided to the base, and the drive arm includes a first surface located at the support substrate side, and a second surface located at an opposite side to the first surface. Further, the drive constant-potential electrode is disposed on the first surface, and the drive signal electrode is disposed on the second surface.

A vibrator device includes a vibrator element, and a support substrate configured to support the vibrator element. The vibrator element includes a drive arm provided with a drive signal electrode and a drive constant-potential electrode, and a detection arm provided with a detection signal electrode and a detection constant-potential electrode. The support substrate includes a base, and a drive signal interconnection electrically coupled to the drive signal electrode, a drive constant-potential interconnection electrically coupled to the drive constant-potential electrode, and a detection signal interconnection electrically coupled to the detection signal electrode all provided to the base, and the drive arm includes a first surface located at the support substrate side, and a second surface located at an opposite side to the first surface. Further, the drive constant-potential electrode is disposed on the first surface, and the drive signal electrode is disposed on the second surface.

A vibrator device includes a vibrator element, and a support substrate disposed so as to be opposed to the vibrator element. The support substrate includes a base configured to support the vibrator element, a support configured to support the base, a plurality of beams configured to couple the base and the support to each other, and a drive signal interconnection, a drive constant-potential interconnection, a detection signal interconnection, and a detection constant-potential interconnection each laid around the base and the support passing the beams, and in predetermined one of the beams, at least one of the drive constant-potential interconnection and the detection constant-potential interconnection is disposed on a surface on the vibrator element side, and the detection signal interconnection is disposed on a surface on the opposite side.

A vibrator device includes a vibrator element, and a support substrate disposed so as to be opposed to the vibrator element. The support substrate includes a base configured to support the vibrator element, a support configured to support the base, a plurality of beams configured to couple the base and the support to each other, and a drive signal interconnection, a drive constant-potential interconnection, a detection signal interconnection, and a detection constant-potential interconnection each laid around the base and the support passing the beams, and in predetermined one of the beams, at least one of the drive constant-potential interconnection and the detection constant-potential interconnection is disposed on a surface on the vibrator element side, and the detection signal interconnection is disposed on a surface on the opposite side.

An inertial measurement apparatus has mechanically bendable beams that have an isosceles trapezoid cross-section. The apparatus has a resonant member having a perimeter at least partially defined by a sidewall slanted at a first angular value and at least one electrode disposed adjacent, and parallel, to the sidewall and separated therefrom by a capacitive gap.

An inertial measurement apparatus has mechanically bendable beams that have an isosceles trapezoid cross-section. The apparatus has a resonant member having a perimeter at least partially defined by a sidewall slanted at a first angular value and at least one electrode disposed adjacent, and parallel, to the sidewall and separated therefrom by a capacitive gap.

An inertial measurement apparatus has mechanically bendable beams that have an isosceles trapezoid cross-section. The apparatus has a resonant member having a perimeter at least partially defined by a sidewall slanted at a first angular value and at least one electrode disposed adjacent, and parallel, to the sidewall and separated therefrom by a capacitive gap.

An inertial measurement apparatus has mechanically bendable beams that have an isosceles trapezoid cross-section. The apparatus has a resonant member having a perimeter at least partially defined by a sidewall slanted at a first angular value and at least one electrode disposed adjacent, and parallel, to the sidewall and separated therefrom by a capacitive gap.

A vibrator device includes a vibrator element, a base, and a support configured to support the vibrator element with respect to the base. The support includes a frame shaped like a frame, a base mount disposed outside the frame, and fixed to the base, an element holder which is disposed inside the frame, and on which the vibrator element is mounted, a pair of first beams which extend along a first direction from the element holder, and couple the element holder and the frame to each other, and a pair of second beams which extend along a second direction from the frame, and couple the frame and the base mount to each other, and W1.sup.2/L1<30, in which a length in the first direction of the first beam is L1 (μm), and a width in a direction perpendicular to the first direction of the first beam is W1 (μm).