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1. 发明授权

US07523537B1 Method of manufacturing a tuning fork with reduced quadrature errror and symmetrical mass balancing 有权
标题翻译：具有减小正交错误和对称质量平衡的音叉的制造方法
公开(公告)号：US07523537B1
公开(公告)日：2009-04-28
申请号：US09615294
申请日：2000-07-13
申请人： Stuart J. Knowles , Robert H. Moore
发明人： Stuart J. Knowles , Robert H. Moore
IPC分类号： H04R7/02
CPC分类号： G01C19/5607 , H03H9/2494 , Y10S29/901 , Y10T29/42 , Y10T29/49005 , Y10T29/49156
摘要： Tuning fork and method in which a pair of elongated tines having front and rear surfaces are disposed symmetrically about an axis, and balancing masses on the front surface of one tine and on the rear surface of the other tine are trimmed to reduce quadrature error and also to maintain mass balance between the tines.
摘要翻译：调整叉和方法，其中具有前表面和后表面的一对细长尖齿围绕轴线对称设置，并且平衡一个齿的前表面和另一个齿的后表面上的质量以减小正交误差，并且还以保持齿间的质量平衡。

2. 发明授权

US06701785B2 Tuning fork with symmetrical mass balancing and reduced quadrature error 有权
标题翻译：调谐叉对称质量平衡和减小正交误差
公开(公告)号：US06701785B2
公开(公告)日：2004-03-09
申请号：US09893145
申请日：2001-06-26
申请人： Stuart J. Knowles , Robert H. Moore
发明人： Stuart J. Knowles , Robert H. Moore
IPC分类号： G01P904
CPC分类号： G01C19/5607 , H03H9/2494 , Y10S29/901 , Y10T29/42 , Y10T29/49005 , Y10T29/49156
摘要： Tuning fork and method in which a pair of elongated tines having front and rear surfaces are disposed symmetrically about an axis, and balancing masses on the front surface of one tine and on the rear surface of the other tine are trimmed to reduce quadrature error and also to maintain mass balance between the tines.
摘要翻译：调整叉和方法，其中具有前表面和后表面的一对细长尖齿围绕轴线对称设置，并且平衡一个齿的前表面和另一个齿的后表面上的质量以减小正交误差，并且还以保持齿间的质量平衡。

3. 发明授权

US06507141B2 Inertial rate sensor tuning fork 有权
标题翻译：惯性传感器音叉
公开(公告)号：US06507141B2
公开(公告)日：2003-01-14
申请号：US09827886
申请日：2001-04-06
申请人： Stuart J. Knowles
发明人： Stuart J. Knowles
IPC分类号： H01L4108
CPC分类号： G01C19/5607 , H03H9/215
摘要： Vibratory tuning fork having a body of piezoelectric material with a base and a pair of tapered tines which extend from the base and decrease in lateral dimension from the base toward the tips of the tines. A crotch section at the base of the tines has an inner pair of faces which lie in crystallographic planes of the piezoelectric material and an outer pair of faces which lie in additional crystallographic planes of the material and extend between the inner pair of faces and the tines. An isolation slot is formed in the base adjacent to the crotch, with enlarged cut-outs at the ends of the slot to prevent the formation of facets and membranes across the slot.
摘要翻译：振动音叉具有具有基部的压电材料体和从基部延伸的一对锥形齿，并且从基部朝向尖端的侧向尺寸减小。在尖端的基部处的裆部具有位于压电材料的结晶平面中的内对对面和位于材料的附加结晶平面中并在内对面和尖齿之间延伸的外对面。隔离槽形成在邻近裆部的基部中，在槽的端部具有扩大的切口，以防止在该槽上形成小平面和薄膜。

4. 发明授权

US06262520B1 Inertial rate sensor tuning fork 有权
公开(公告)号：US06262520B1
公开(公告)日：2001-07-17
申请号：US09396996
申请日：1999-09-15
申请人： Stuart J. Knowles
发明人： Stuart J. Knowles
IPC分类号： H01L4108
CPC分类号： G01C19/5607 , H03H9/215
摘要： Vibratory tuning fork having a body of piezoelectric material with a base and a pair of tapered tines which extend from the base and decrease in lateral dimension from the base toward the tips of the tines. A crotch section at the base of the tines has an inner pair of faces which lie in crystallographic planes of the piezoelectric material and an outer pair of faces which lie in additional crystallographic planes of the material and extend between the inner pair of faces and the tines. An isolation slot is formed in the base adjacent to the crotch, with enlarged cut-outs at the ends of the slot to prevent the formation of facets and membranes across the slot.

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