Abstract: According to one embodiment, a sensor includes an element section. The element section includes a base, a first fixed portion, a first intermediate connect portion, a first intermediate movable member, a first connect portion, a first movable member, and a first fixed electrode. The first fixed portion is fixed to the base. The first intermediate connect portion is supported by the first fixed portion. The first intermediate movable member is connected to the first intermediate connect portion. The first connect portion is connected to the first intermediate movable member. The first movable member is supported by the first connect portion. The first movable member includes a first movable electrode. The first fixed electrode is fixed to the base and faces the first movable electrode.

Abstract: According to one embodiment, a sensor includes an element section. The element section includes a first beam, a first beam electrode, a second beam, and a second beam electrode. The first beam includes a first portion, a first other portion, and a first intermediate portion between the first portion and the first other portion. The first beam electrode is connected to the first intermediate portion. The second beam includes a second portion, a second other portion, and a second intermediate portion between the second portion and the second other portion. The second beam electrode is connected to the second intermediate portion. The first and the second beam electrodes satisfy at least one of first to eighth conditions.

Abstract: According to one embodiment, a sensor includes a first beam, a first opposing beam, a support portion, a first linking portion, and a first connecting portion. The first beam includes a first portion and a first other portion. A direction from the first portion to the first other portion is along a first direction. A second direction from the first opposing beam to the first beam crosses the first direction. The first opposing beam includes a first opposing portion and a first other opposing portion. The first linking portion is connected to the first other portion and the first other opposing portion. The first connecting portion is connected to the first linking portion. A first connecting portion width along the second direction of the first connecting portion is narrower than a first linking portion width along the second direction of the first linking portion.

Abstract: A resonance frequency detector has an adder that adds a correction term to an oscillation frequency of an output signal of an oscillator, and detects a predetermined resonance frequency of a resonance element. The correction term is generated based on a phase error in a phase locked loop and a degree of change in phase at the resonance frequency, and the phase locked loop generates a control signal based on the phase error between an output signal of the resonance element that resonates at the resonance frequency and the output signal of the oscillator that varies the oscillation frequency according to the control signal.

Abstract: According to one embodiment, a sensor includes a housing, a sensor section, and a plurality of first fixing members. The housing includes a housing base. The sensor section is surrounded by the housing. The sensor section includes a sensor base, a support portion fixed to the sensor base, a movable portion supported by the support portion, and a plurality of fixed electrodes fixed to the sensor base and facing the movable portion. A first gap is provided between the sensor base and the movable portion. The fixed electrodes are provided in n-rotational symmetry in a first plane perpendicular to a first direction from the sensor base to the support portion. The n is an integer of 2 or more. The plurality of first fixing members fix the sensor base to the housing base. The first fixing members are provided in the n-rotational symmetry in the first plane.

Abstract: According to one embodiment, a sensor a sensor includes a base, a first support portion fixed to the base, and a first movable portion supported by the first support portion. The first movable portion includes first and second movable base portions, a connecting base portion, first and second movable beams, and first and second movable conductive portions. The first movable beam includes a first beam end portion, a first beam other end portion, and a first beam intermediate portion. The second movable beam includes a second beam end portion, a second beam other end portion, and a second beam intermediate portion. The first movable conductive portion includes a first crossing conductive portion, a first extending conductive portion, and a first other extending conductive portion. The second movable conductive portion includes a second crossing conductive portion, a second extending conductive portion, and a second other extending conductive portion.

Abstract: According to one embodiment, a sensor includes a base, a first support portion fixed to the substrate, and a first member supported by the first support portion. A gap is provided between the base and the first member. The first beam electrode and the second beam electrode satisfy at least one of a first condition, a second condition, a third condition, a fourth condition, a fifth condition, a sixth condition, a seventh condition, or an eighth condition.

Abstract: According to one embodiment, a sensor includes a base body, a support portion fixed to the base body, and a first member supported by the support portion. A gap is provided between the base body and a part of the first member. The first member includes a supported region, a first movable region, a first structure, a first support structure, a first connection structure, a first connect portion, and a first beam. The support portion is located between the base body and the supported region in a first direction from the base body to the support portion. The first beam extends along a second direction crossing the first direction. A first beam position of the first beam is located between a first movable region position of the first movable region and a support portion position of the support portion in the second direction.

Abstract: According to one embodiment, a sensor includes a base body, a support member, and a movable member. The base body includes a first face including a first base region. The support member is fixed to the first base region. The support member includes a support portion and an extending portion. The extending portion is connected to the support portion. The extending portion extends along a second direction crossing a first direction from the first base region to the support portion. A first width of the support portion in a third direction crossing a plane including the first direction and the second direction is wider than a second width of the extending portion in the third direction. The movable member is supported by the extending portion. A first gap is provided between the first face and the movable member.

Abstract: According to one embodiment, a sensor includes a base body including a first face, a first support portion, a first movable portion, and a first insulating member. The first face includes a first base region, a second base region, and a third base region. The first support portion is fixed to the third base region. The first movable portion is supported by the first support portion. The first movable portion includes a first movable region and a second movable region. A first gap is provided between the first base region and the first movable region. The first insulating member is fixed to the second base region, and located between the second base region and the second movable region in a first direction from the third base region to the first support portion. A second gap is provided between the first insulating member and the second movable region.

Abstract: According to one embodiment, a sensor includes a first detection element. The first detection element includes a base body, a first support member fixed to the base body, a conductive first movable member, and a first conductive part fixed to the base body. The first movable member includes first, second, third, fourth and fifth movable parts. In a second direction crossing a first direction from the base body toward the first movable member, the third movable part is between the first and second movable parts. In the second direction, the fourth movable part is between the first and third movable parts. In the second direction, the fifth movable part is between the third and second movable parts. The first movable part is supported by the first support member. The second, third, fourth and fifth movable parts are separated from the base body.

Abstract: According to one embodiment, a sensor includes a base body including a first surface including first and second base body regions, a first structure body provided in the first base body region, a second structure body provided in the second base body region, and a control device. The first structure body includes a first movable member configured to vibrate. The vibration of the first movable member includes first and second components. The second structure body includes a second movable member configured to vibrate. The control device includes a controller configured to perform a processing operation. The processing operation includes outputting a second rotation angle, The second rotation angle is obtained by correcting a first rotation angle based on a resonance frequency of the second movable member. The first rotation angle of the first movable member is obtained based on the first component and the second component.

Abstract: According to one embodiment, a sensor includes a first detection element, and a controller. The first detection element includes a base body, a first support portion, a first movable member, a first detection electrode, and a first counter detection electrode. The first support portion is fixed to the base body. The first movable member is supported by the first support portion. The first detection electrode and the first counter detection electrodes are fixed to the base body. The first movable member includes a first movable portion. The first movable portion includes a first beam, a first conductive extending portion, and a first connecting portion. The first conductive extending portion includes a first extending portion, a first extending other portion, and a first extending intermediate. The first extending portion is between the first detection electrode and the first counter detection electrodes. The controller includes a first differential circuit.

Abstract: According to one embodiment, a sensor includes a stage, a driver, and a detector. The stage includes a first portion and a second portion. The driver is configured to rotate the stage. A rotation axis of the stage passes through the first portion and is along a first direction. A second direction from the first portion to the second portion crosses the first direction. The second portion is configured to rotate along a circumferential direction with the rotation axis as a center when the stage rotating. The detector is provided at the second portion. The detector includes a first detection element configured to detect a first acceleration including a component along the second direction, and a second detection element configured to detect a second acceleration including a component along the first direction.

Abstract: A resonance frequency detector has an adder that adds a correction term to an oscillation frequency of an output signal of an oscillator, and detects a predetermined resonance frequency of a resonance element. The correction term is generated based on a phase error in a phase locked loop and a degree of change in phase at the resonance frequency, and the phase locked loop generates a control signal based on the phase error between an output signal of the resonance element that resonates at the resonance frequency and the output signal of the oscillator that varies the oscillation frequency according to the control signal.

Abstract: According to one embodiment, a sensor includes a sensor part including first and second sensor elements, and a circuit part. The first sensor element includes a first supporter, a first movable part capable of vibrating, first and second electrodes. The first electrode outputs a first signal corresponding to a vibration of the first movable part. The second electrode outputs a second signal corresponding to the vibration of the first movable part. The second sensor element includes a second supporter, a second movable part capable of vibrating, third and fourth electrodes. The third electrode outputs a third signal corresponding to a vibration of the second movable part. The fourth electrode outputs a fourth signal corresponding to the vibration of the second movable part. The circuit part includes a calculator. The calculator outputs a differential operation result between first and second processing signals.

Abstract: According to one embodiment, a sensor includes a sensor part. The sensor part includes a supporter and a movable part. The movable part includes a movable member located around the supporter in a first plane, and a plurality of structure members located between the supporter and the movable member. The structure members have bent shapes. The structure members connect the movable member with the supporter. The movable member is capable of vibrating. The movable part has the supporter as a center of rotational symmetry. The movable part has a plurality of mirror planes. The mirror planes pass through the center of the rotational symmetry and cross the first plane.

Abstract: According to one embodiment, a sensor includes a sensor element, a housing provided around the sensor element, and a processor. The sensor element includes a base body including first and second base body regions, and first and second sensor parts. The first sensor part is provided in the first base body region, and includes a first sensor movable part. The second sensor part is provided in the second base body region and includes first and second beams. The processor can derive a rotation angle and an angular velocity based on a signal obtained from the first sensor movable part. The processor can detect acceleration and a temperature based on a first resonance frequency of the first beam and a second resonance frequency of the second beam. The processor can correct one of the rotation angle or the angular velocity based on one of the temperature or the acceleration.

Abstract: According to one embodiment, a MEMS element includes a first member, and an element part. The element part includes a first fixed electrode fixed to the first member, a first movable electrode facing the first fixed electrode, a first conductive member electrically connected to the first movable electrode, and a second conductive member electrically connected to the first movable electrode. The first movable electrode is supported by the first and second conductive members to be separated from the first fixed electrode. The first conductive member has a meandering structure. The second conductive member includes a first conductive region and a second conductive region. The second conductive region is between the first movable electrode and the first conductive region. A second width of the second conductive region along a second direction is less than a first width of the first conductive region along the second direction.

Abstract: According to one embodiment, a sensor includes a first detection element, and a processing part. The first detection element includes a base body, a first supporter fixed to the base body, a first movable part, first and second counter conductive parts. The first movable part is supported by the first supporter and separated from the base body. The first movable part includes a first movable base part supported by the first supporter, a second movable base part connected with the first movable base part, a first movable beam including a first beam, and a second movable beam including a second beam. The first beam includes a first end portion and a first other end portion. The second beam includes a second end portion and a second other end portion. The first counter conductive part faces the first movable beam. The second counter conductive part faces the second movable beam.