Abstract: There is provided a gyro vibrometer configured to detect vibration of a subject with high sensitivity. The gyro vibrometer includes a support body including an opening portion, a film disposed on the support body in which part of the film is located over the opening portion, and at least one gyro sensor disposed on a surface on the opening side of the film.

Abstract: A sensor element includes a piezoelectric body, a plurality of excitation electrodes, and a plurality of detecting electrodes. The piezoelectric body includes a frame and a driving arm and detecting arm which extend from the frame within a predetermined plane parallel to an xy plane in an orthogonal coordinate system xyz. The excitation electrodes are located on the driving arm. The detecting electrodes are located on the detecting arm enabling detection of a signal generated by bending deformation of the detecting arm in a z-axis direction. The detecting arm includes first and second arms. The first arm extends from the frame in the predetermined plane. The second arm extends from a front end side of the first arm toward a frame side within the predetermined plane. An end part of the second arm on the frame side is formed as a free end.

Abstract: 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.

Abstract: To provide an opportunity to receive advice on equipment that is beneficial for users to improve their skill. A motion analysis system includes a movement sensor device for detecting a state of a racket, a user terminal for presenting to a user an analysis result of a movement of the racket analyzed based on detection information detected by the movement sensor device, and an adviser terminal for presenting to an adviser an advice request transmitted from the user terminal along with the analysis result and receiving input of advice information created by the adviser and corresponding to the advice request. The advice information includes recommendation information related to equipment recommended to the user.

Abstract: A motion analysis system (100) includes a movement sensor device (5) for detecting a state of a racket (6), a user terminal (2) for presenting an analysis result of a movement of the racket (6) analyzed based on a measurement value acquired by the movement sensor device (5), and an adviser terminal (3) for presenting an advice request transmitted from the user terminal (2) to an adviser along with the analysis result, wherein the adviser terminal (3) executes processing of transmitting advice information corresponding to the advice request and created by the adviser to the user, and processing of presenting reception of a consideration for the advice information to the adviser.

Abstract: A sensor device includes an inertial sensor and a holding member. The holding member holds the inertial sensor and is capable of being attached to and detached from an end face of a grip being part of a sports implement and having the shape of a shaft. The holding member includes a sensor-side coupling part. The sensor-side coupling part is capable of being attached to and detached from a grip-side coupling part on the end face of the grip by being moved relative to the grip in a first direction that forms an angle with an axial direction of the grip.

Abstract: In an angular velocity sensor, a pair of support parts are separated from each other in an x-axis direction in an orthogonal coordinate system xyz. A main part extends along the x-axis. A pair of extension parts connect two ends of the main part and inner sides of the support parts. The driving arms extend from the main part alongside each other in a y-axis direction separated from each other in the x-axis direction. The detecting arm extends from the main part in the y-axis direction at a position which is between the pair of driving arms. The driving circuit supplies voltages so that the pair of driving arms vibrate so as to bend to inverse sides from each other in the x-axis direction. The detecting circuit detects the signal generated due to bending deformation of the detecting arm in the z-axis direction.

Abstract: A piezoelectric body of a sensor includes a driving arm and detecting arm which extend from a base part in a y-axis direction. Excitation electrodes vibrate the driving arm in an x-axis direction. Detecting electrodes enable detection of a signal due to deformation in a z-axis direction of the detecting arm. The piezoelectric body has anisotropy causing vibration of torsional deformation when the driving arm vibrates in the x-axis direction. When the driving arm bends to a +x side, the base part flexes so that a connection position in the base part is displaced to one side in the z-axis direction. The cross-section of the driving arm perpendicular to the y-axis direction causes a bending stiffness to the +x side and to the other side in the z-axis direction is smaller than a bending stiffness to the +x side and to the one side in the z-axis direction.

Abstract: Provided is a vibrometer capable of detecting vibration of a vibrator having a placement surface and vibrating horizontally in a predetermined direction. The vibrometer includes a revolving body and a gyroscope sensor. The revolving body has an outer surface including a curved surface that is curved outward when viewed in a direction along a predetermined axis. The revolving body is capable of rolling in the predetermined direction on the placement surface in such a manner that the curved surface comes into contact with the placement surface, with the predetermined axis forming an angle with the predetermined direction. The gyroscope sensor is fixed to the revolving body and is capable of determining the angular velocity around the predetermined axis.

Abstract: A sensor element of an angular velocity sensor includes a piezoelectric body, a plurality of excitation electrodes, and a plurality of detection electrodes. The piezoelectric body includes at least two driving arms and a detection arm. The plurality of excitation electrodes excites the two driving arms in phases that are opposite to each other in an x-axis direction. The plurality of detection electrodes takes out a signal that is produced by vibration of the detection arm in the x-axis direction or a z-axis direction. The piezoelectric body further includes a frame portion, a retention portion that extends outward from the frame portion and that supports the frame portion, and a supporting portion that is connected to a side of the retention portion opposite to the frame portion. The two driving arms and the detection arm extend from the frame portion.

Abstract: In a sensor element, a frame has an x-axis direction as a longitudinal direction. Two driving arms extend from the frame alongside each other in a y-axis direction. A detecting arm extends from the frame in the y-axis direction at a position which is a center of the two driving arms in the x-axis direction. A plurality of excitation-use wiring parts connect a plurality of excitation electrodes and terminals with connection relationships where the two driving arms vibrate with inverse phases in the x-axis direction. A first detection-use wiring part is connected to a first detecting electrode and a first detection-use terminal. A second detection-use wiring part is connected to a second detecting electrode and a second detection-use terminal. At least a portion of the first detection-use wiring part and at least a portion of the second detection-use wiring part extend alongside each other on the frame over ¼ or more of a length of the frame in the longitudinal direction of the frame.

Abstract: In a multi-axial angular velocity sensor, a substrate part perpendicular to a D3 axis includes a pair of long sides parallel to a D2 axis and a pair of short sides parallel to a D1 axis. Three sensor elements for the three axes are mounted on an upper surface of the substrate part. A piezoelectric body of each of the sensor elements comprises a plurality of arms. Theses arms extend in a predetermined direction of extension in a plane perspective of the upper surface. The piezoelectric body has the direction of extension as its long direction. Two of the three sensor element are arranged side by side in a direction along the short sides of the substrate part with orientations so that the directions of extension become parallel to the long sides. A remaining one is arranged in a direction along the long sides relative to the two elements with an orientation so that the direction of extension becomes parallel to the short sides.

Abstract: An angular velocity sensor includes a piezoelectric body, a drive circuit, and a detection circuit. The piezoelectric body includes a pair of frames, a pair of drive arms, and a pair of detection arms. The pair of frames face each other in a y-axis direction in an orthogonal coordinate system xyz. The pair of drive arms are respectively laid bridging the pair of frames and face each other in an x-axis direction. The pair of detection arms extend from the pair of frames in the y-axis direction at positions between the pair of drive arms in the x-axis direction. The drive circuit applies voltages of mutually reverse phases to the pair of drive arms so that the drive arms vibrate bending to mutually reverse sides in the x-axis direction. The detection circuit detects signals generated due to the bending deformations of the pair of detection arms in a z-axis direction.

Abstract: In a piezoelectric body of a sensor element, a pair of driving arms extend alongside each other from a base part to a +y side in a y-direction. A pair of detecting arms extend alongside each other from the base part to a ?y side in the y-direction. A holding part extends between the pair of detecting arms from the base part to the ?y side and extends out beyond front ends of the pair of detecting arms to the ?y side. A mounting part is connected to an end part of the holding part on the ?y side and includes a detection side extending portion and two lateral side extending portions. The detection side extending portion extends from a position connected with the holding part to a +x side and ?x side. The two lateral side extending portions extend toward the +y side from positions on the +x side and ?x side other than both of the two detecting arms. At least one of the plurality of element terminals is located beyond the detection side extending portion on the further +y side.

Abstract: In a piezoelectric body of a sensor element, two first arms extend alongside each other from a base part to a +y side. Two second arms extend alongside each other from the base part to a ?y side. A holding part extends between the two second arms from the base part to the ?y side and extends out beyond front ends of the two second arms to the ?y side. A mounting part on which a plurality of element terminals are located is connected to an end part of the holding part on the ?y side. The holding part includes a main portion and a connection portion. Where the length in an x-direction is the width, the main portion extends from a position between the front ends of the two second arms to a side where the base part is located, while maintaining a width not less than a width of a portion located between the front ends of the two second arms. The connection portion which is connected to the main portion and the base part and is broader in width than the main portion.

Abstract: An angular velocity sensor includes a piezoelectric body, a drive circuit, and a detection circuit. The piezoelectric body includes a frame, a pair of drive arms, and a detection arm. The frame is supported in a pair of supported parts which are spaced apart from each other in an x-axis direction. The pair of drive arms extend alongside each other from the frame in a y-axis direction between the pair of supported parts and spaced apart from each other in the x-axis direction. The detection arm extends from the frame in the y-axis direction and is between the pair of drive arms in the x-axis direction. The drive circuit applies voltages of mutually reverse phases to the pair of drive arms so that the drive arms vibrate bending toward mutually reverse sides in the x-axis direction. The detection circuit detects signals generated due to bending deformation of the detection arm.

Abstract: 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.

Abstract: In an angular velocity sensor, a pair of support parts are separated from each other in an x-axis direction in an orthogonal coordinate system xyz. A main part extends along the x-axis. A pair of extension parts connect two ends of the main part and inner sides of the support parts. The driving arms extend from the main part alongside each other in a y-axis direction separated from each other in the x-axis direction. The detecting arm extends from the main part in the y-axis direction at a position which is between the pair of driving arms. The driving circuit supplies voltages so that the pair of driving arms vibrate so as to bend to inverse sides from each other in the x-axis direction. The detecting circuit detects the signal generated due to bending deformation of the detecting arm in the z-axis direction.

Abstract: A piezoelectric body of a sensor includes a driving arm and detecting arm which extend from a base part in a y-axis direction. Excitation electrodes vibrate the driving arm in an x-axis direction. Detecting electrodes enable detection of a signal due to deformation in a z-axis direction of the detecting arm. The piezoelectric body has anisotropy causing vibration of torsional deformation when the driving arm vibrates in the x-axis direction. When the driving arm bends to a +x side, the base part flexes so that a connection position in the base part is displaced to one side in the z-axis direction. The cross-section of the driving arm perpendicular to the y-axis direction causes a bending stiffness to the +x side and to the other side in the z-axis direction is smaller than a bending stiffness to the +x side and to the one side in the z-axis direction.

Abstract: A sensor element includes a piezoelectric body, a plurality of excitation electrodes, and a plurality of detecting electrodes. The piezoelectric body includes a frame and a driving arm and detecting arm which extend from the frame within a predetermined plane parallel to an xy plane in an orthogonal coordinate system xyz. The plurality of excitation electrodes are located on the driving arm. The plurality of detecting electrodes are located on the detecting arm in an arrangement enabling detection of a signal generated by bending deformation of the detecting arm in a z-axis direction. The detecting arm includes a first arm and second arm. The first arm extends from the frame in the predetermined plane. The second arm is connected to a front end side portion of the first arm and extend from a front end side of the first arm toward a frame side within the predetermined plane. An end part of the second arm on the frame side is formed as a free end.