公开(公告)号：US06357303B2

公开(公告)日：2002-03-19

申请号：US09731430

申请日：2000-12-06

申请人： Evertt L. Smith ,  David Jones

发明人： Evertt L. Smith ,  David Jones

IPC分类号： G01L116

CPC分类号： G01N3/08 ,  A01N1/02 ,  A01N1/0247 ,  G01N2203/0051 ,  G01N2203/0089 ,  G01N2203/0623

摘要： A mechanical testing device has a rigid frame and a piezo translator connected to the frame. A Wheatstone bridge is connected to the translator to produce an electrical signal related to the compression of the translator, wherein a sample positioned between the piezo translator and the frame is subjected to loads by the movement of the translator. A sensor detects the force applied to the sample by the piezo translator, and produces a signal indicative of the force. A computer receives the Wheatstone bridge electrical signal and the signal indicative of the force applied to the sample. The computer controls the advancement of the translator to allow the application of precise amounts of compression to the sample.

摘要翻译： 机械测试装置具有连接到框架的刚性框架和压电转换器。 惠斯通电桥连接到转换器以产生与压电转换器相关的电信号，其中定位在压电转换器和框架之间的样品由于转换器的运动而受到负载。 传感器检测由压电转换器施加到样品的力，并产生指示力的信号。 计算机接收惠斯登电桥电信号和指示施加到样品的力的信号。 计算机控制翻译器的进步，以允许对样品应用精确量的压缩。

公开(公告)号：US06490911B1

公开(公告)日：2002-12-10

申请号：US09510246

申请日：2000-02-22

申请人： Masahiko Namerikawa ,  Kazuyoshi Shibata ,  Yukihisa Takeuchi

发明人： Masahiko Namerikawa ,  Kazuyoshi Shibata ,  Yukihisa Takeuchi

IPC分类号： G01L116

CPC分类号： G01L9/008 ,  G01N29/036 ,  G01N29/222 ,  G01N2291/014 ,  G01N2291/015

摘要： A sensor device includes a base body 12 having a vibrating portion 14, a piezoelectric element 20 fixed onto one surface of the vibrating portion 14 and having a piezoelectric film 22 and a pair of electrodes 24a, 24b which are in contact with the piezoelectric film 22, a space 16 that allows a fluid to lead to the other surface of the vibrating portion 14, and introduction holes 18 that communicate with the space 16, and the sensor device 10 is in a longitudinal shape. A recess 15 which contains at least an opening end of the introduction hole 18 on the surface side of the sensor device 10 in its region and extends up to the rear end portion 10′ of the sensor device is formed on the surface of the sensor device 10 by a protrusion 13 disposed on the surface of said sensor device so as to extend substantially continuously from the periphery of the introduction holes 18 to the rear end portion 10′ of said sensor device.

摘要翻译： 传感器装置包括具有振动部分14的基体12，固定在振动部分14的一个表面上并具有压电膜22的压电元件20和与压电膜22接触的一对电极24a，24b ，允许流体引导到振动部14的另一个表面的空间16，与空间16连通的导入孔18和传感器装置10呈纵向状态。 在传感器装置10的表面侧至少包含导入孔18的开口端的区域，并且向传感器装置的后端部10'延伸的凹部15形成在传感器装置的表面上 10由设置在所述传感器装置的表面上的突起13构成，以便从导入孔18的周边到所述传感器装置的后端部10'基本连续地延伸。

公开(公告)号：US06249075B1

公开(公告)日：2001-06-19

申请号：US09442984

申请日：1999-11-18

申请人： David John Bishop ,  Robert Albert Boie ,  Flavio Pardo

发明人： David John Bishop ,  Robert Albert Boie ,  Flavio Pardo

IPC分类号： G01L116

CPC分类号： H04R19/00 ,  Y10T29/42

摘要： A micro-machined transducer having a structure in which an acoustic enclosure is formed on a substrate above the plane of the substrate surface is disclosed. Forming the acoustic enclosure on the substrate above the plane of the substrate surface, rather than an acoustic cavity in a surface of the substrate, provides an acoustic cavity whose size is not limited by the thickness of the substrate.

摘要翻译： 公开了一种微加工的换能器，其具有在基板表面的平面上方的基板上形成声学外壳的结构。 在基板表面上方的基板上形成声罩，而不是基板表面的声腔，提供了一个声腔，其尺寸不受基板厚度的限制。

公开(公告)号：US06672176B2

公开(公告)日：2004-01-06

申请号：US09847189

申请日：2001-05-01

申请人： Robert W. Bruns

发明人： Robert W. Bruns

IPC分类号： G01L116

CPC分类号： G01L3/14 ,  G01G19/4142

摘要： A torsional sensing load cell, particularly for mounting at support locations of an automotive seat in order to determine weight and sitting position of an occupant of a motor vehicle. The load cell has the shape of a tuning fork, with one arm fixed to a foot attached to a chassis and a second parallel arm, not contacting the first arm, arranged to support a quadrant of a seat by means of a flange on the side of the second arm, causing torsion in the arm. The two arms are connected at one end by means of a bridge section through which torsion is transmitted arising from twisting in the second arm. Torsion is measured by transducers on the bridge section with torsion signals converted to weight signals. The weight signals are used to control deployment of an air bag or other safety apparatus.

摘要翻译： 一种扭转传感称重传感器，特别用于安装在汽车座椅的支撑位置处，以便确定机动车辆的乘客的重量和坐姿。 称重传感器具有音叉的形状，其中一个臂固定到附接到底盘的脚和不接触第一臂的第二平行臂，其布置成通过侧面上的凸缘支撑座的象限 的第二臂，造成手臂扭转。 两个臂通过桥接部分在一端连接，桥接部分通过第二臂扭转而扭转扭转。 扭转由桥梁部分的传感器测量，扭转信号转换为重量信号。 重量信号用于控制安全气囊或其他安全装置的部署。

公开(公告)号：US06470759B1

公开(公告)日：2002-10-29

申请号：US09699727

申请日：2000-10-30

申请人： Jon Scott

发明人： Jon Scott

IPC分类号： G01L116

CPC分类号： G01L1/2243 ,  G01G3/1412

摘要： A load cell has internal cuts or grooves allowing increased the measurable strain on a load cell package increasing its ability to accurately measure lower weights while reducing the load cell's sensitivity to thermal shock. These cuts or grooves are rectangular slots with circular ends and run parallel to the load cell. The cuts or grooves are cut into the gage-hole producing ridges. The strain gauges are located on the middle ridge which is a thicker wall which reduces the temperature differences between the gauges, causing the cell to generate less output during a thermal shock. Not only is the output due to thermal shock smaller, but it lasts for a shorter period of time.

摘要翻译： 称重传感器具有内部切口或凹槽，允许增加测力传感器封装上的可测量应变，从而增加其准确测量较低重量的能力，同时降低称重传感器对热冲击的敏感度。 这些切口或凹槽是具有圆形端部并且平行于称重传感器延伸的矩形槽。 切割槽或凹槽被切割成产生孔规的孔。 应变计位于中间的脊上，这是一个较厚的墙壁，可以降低仪表之间的温度差异，导致电池在热冲击过程中产生较少的输出。 不仅由于热冲击产生的输出较小，而且持续时间较短。

公开(公告)号：US06234032B1

公开(公告)日：2001-05-22

申请号：US09041132

申请日：1998-03-12

申请人： Yutaka Okumoto

发明人： Yutaka Okumoto

IPC分类号： G01L116

CPC分类号： G01L1/2262 ,  G01L1/08 ,  G01L1/16

摘要： A load measuring method and a load measuring apparatus employ two piezoelectric elements having the same characteristic. When a load is applied to a first piezoelectric element, a voltage applied to the first piezoelectric element is feedback-controlled so as to cause the output from a first strain gauge affixed to the first piezoelectric element to be reduced to zero, whereby deformation of the first piezoelectric element applied with the load is suppressed to zero. The load applied to the first piezoelectric element is measured from a deformation amount of a second strain gauge affixed to the second piezoelectric element to which is applied the same voltage as the voltage applied to the first piezoelectric element and which is deformed in amount accurately corresponding to that of deformation to be naturally generated in the first piezoelectric element.

摘要翻译： 负载测量方法和负载测量装置使用具有相同特性的两个压电元件。 当向第一压电元件施加负载时，对第一压电元件施加的电压进行反馈控制，使得固定在第一压电元件上的第一应变计的输出变为零，由此， 施加负载的第一压电元件被抑制到零。 施加到第一压电元件的负载是根据固定到第二压电元件的第二应变计的变形量来测量的，第二压电元件施加与施加到第一压电元件的电压相同的电压，并且其精确对应于 在第一压电元件中自然产生的变形。