Patent ID: 9702696
Date: 2017-07-11
CPC Classifications: G01C

Claim:
1. An angular velocity sensor configured to detect an angular velocity applied to an object, comprising: a fixing section configured to be fixed to the object; a first connection beam having one end and another end, the one end of the first connection beam being connected to the fixing section; a second connection beam having one end and another end, the one end of the second beam being connected to the fixing section, the second connection beam extending opposite to the first connection beam; a first double-end-supported beam having one end and another end, the one end of the first double-end-supported beam being connected to the another end of the first connection beam, the another end of the first double-end-supported beam being connected to the another end of the second connection beam, the first double-end-supported beam extending such that the first double-end-supported beam, the first connection beam, and the second connection beam surround one side surface of the fixing section; a second double-end-supported beam having one end and another end, the one end of the second double-end-supported beam being connected to the another end of the first connection beam, the another end of the second double-end-supported beam being connected to the another end of the second connection beam, the second double-end-supported beam extending such that the second double-end-supported beam, the first connection beam, and the second connection beam surround another side surface of the fixing section opposite to the one side surface of the fixing section; a first driving electrode provided on the first double-end-supported beam and configured to vibrate the first double-end-supported beam; a first sensing electrode provided on the first double-end-supported beam and configured to detect a vibration of the first double-end-supported beam; a second driving electrode provided on the second double-end-supported beam and configured to vibrate the second double-end-supported beam; and a second sensing electrode provided on the second double-end-supported beam and configured to detect a vibration of the second double-end-supported beam, wherein the first double-end-supported beam has a first bent section, the first sensing electrode is provided on one side of the first bent section across from the first driving electrode located on another side of the first bent section, along the first double-end-supported beam, the second double-end-supported beam has a second bent section, the second sensing electrode is provided on one side of the second bent section across from the second driving electrode located on another side of the second bent section, along the second double-end-supported beam.