Abstract: A current sensor includes a bus bar in which current to be measured flows and a magnetic sensor for detecting a magnetic field generated by the current flowing in the bus bar. The bus bar includes a bypass bus bar having a cylindrical structure and a sensing bus bar disposed in a hollow area surrounded by the bypass bus bar. The magnetic sensor is disposed in the hollow area. An area having a zero magnetic field is formed in the hollow area of the bypass bus bar. Thus, by disposing the sensing bus bar in the zero magnetic field area, it is possible to accurately measure the amount of current flowing in the bus bar while preventing saturation of the magnetic sensor even when the current flowing in the bus bar is large.

Abstract: There is provided an angular velocity sensor element which, even when a sudden vibration is given from the outside, can absorb the vibration to prevent the vibration from being transmitted to an element section thereof. An angular velocity sensor element 1 according to the present embodiment includes: sensor units 10a to 10c with driven-related and detection-related vibrating arms; a base section 4 which couples the sensor units 10a to 10c; a first fixed section 6 which is frame-shaped and which surrounds the base section 4 and the sensor units 10a to 10c; first coupling arms 5a to 5c which couple the base section 4 to the first fixed section 6; a second fixed section 8 which is disposed in at least a part of the area around the first fixed section 6; and second coupling arms 7a to 7c which couple the first fixed section 6 to the second fixed section 8.

Abstract: There is provided an angular velocity sensor element which, even when a sudden vibration is given from the outside, can absorb the vibration to prevent the vibration from being transmitted to an element section thereof. An angular velocity sensor element 1 according to the present embodiment includes: sensor units 10a to 10c with driven-related and detection-related vibrating arms; a base section 4 which couples the sensor units 10a to 10c; a first fixed section 6 which is frame-shaped and which surrounds the base section 4 and the sensor units 10a to 10c; first coupling arms 5a to 5c which couple the base section 4 to the first fixed section 6; a second fixed section 8 which is disposed in at least a part of the area around the first fixed section 6; and second coupling arms 7a to 7c which couple the first fixed section 6 to the second fixed section 8.