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1. 发明授权

US09400337B2 Beam accelerometer 有权
标题翻译：光束加速度计
公开(公告)号：US09400337B2
公开(公告)日：2016-07-26
申请号：US13834467
申请日：2013-03-15
申请人： L-3 Communications Corporation
发明人： Sterling William Jones , David Ralph Kimball
IPC分类号： H01L41/113 , G01V1/18 , G01P15/09
CPC分类号： G01V1/18 , G01P15/09 , G01V1/181 , H01L41/1132
摘要： Methods and devices are disclosed for measuring low levels of acceleration caused by low frequency seismic waves. For example, an omnidirectional beam accelerometer configured to measure low frequency waves is disclosed. The omnidirectional beam accelerometer may include three beam acceleration sensors. Each beam acceleration sensor may include a respective mass and a respective beam. Each respective beam may be comprised at least in part of a piezoelectric material. Each beam acceleration sensor may have a ratio of mass density [kg/m3] to beam stiffness [N/m] of at least 4.5×10−5 kg/Nm2. The omnidirectional beam accelerometer may also include a housing to ensure the sensors are operating in orthogonal directions and an interface circuit to interface between the sensor and external circuitry.
摘要翻译：公开了用于测量由低频地震波引起的低加速度的方法和装置。例如，公开了一种配置成测量低频波的全向光束加速度计。全向光束加速度计可以包括三个光束加速度传感器。每个光束加速度传感器可以包括相应的质量和相应的光束。每个相应的光束可以至少部分地由压电材料构成。每个光束加速度传感器可以具有至少4.5×10-5kg / Nm2的质量密度[kg / m3]与光束刚度[N / m]的比率。全向光束加速度计还可以包括壳体以确保传感器在正交方向上操作，以及接口电路以在传感器和外部电路之间进行接口。

2. 发明申请

US20140269203A1 Beam Accelerometer 有权
标题翻译：光束加速度计
公开(公告)号：US20140269203A1
公开(公告)日：2014-09-18
申请号：US13834467
申请日：2013-03-15
申请人： L-3 COMMUNICATIONS CORPORATION
发明人： Sterling William Jones , David Ralph Kimball
IPC分类号： G01V1/18
CPC分类号： G01V1/18 , G01P15/09 , G01V1/181 , H01L41/1132
摘要： Methods and devices are disclosed for measuring low levels of acceleration caused by low frequency seismic waves. For example, an omnidirectional beam accelerometer configured to measure low frequency waves is disclosed. The omnidirectional beam accelerometer may include three beam acceleration sensors. Each beam acceleration sensor may include a respective mass and a respective beam. Each respective beam may be comprised at least in part of a piezoelectric material. Each beam acceleration sensor may have a ratio of mass density [kg/m3] to beam stiffness [N/m] of at least 4.5×10−5 kg/Nm2. The omnidirectional beam accelerometer may also include a housing to ensure the sensors are operating in orthogonal directions and an interface circuit to interface between the sensor and external circuitry.
摘要翻译：公开了用于测量由低频地震波引起的低加速度的方法和装置。例如，公开了一种配置成测量低频波的全向光束加速度计。全向光束加速度计可以包括三个光束加速度传感器。每个光束加速度传感器可以包括相应的质量和相应的光束。每个相应的光束可以至少部分地由压电材料构成。每个光束加速度传感器可以具有至少4.5×10-5kg / Nm2的质量密度[kg / m3]与光束刚度[N / m]的比率。全向光束加速度计还可以包括壳体以确保传感器在正交方向上操作，以及接口电路以在传感器和外部电路之间进行接口。

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