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公开(公告)号：EP1132728A3
公开(公告)日：2001-09-19
申请号：EP01201984.0
申请日：1995-12-15
Applicant: HONEYWELL INC.
Inventor： Zook, David J.
CPC classification number: G01P15/097 , G01L1/183 , G01L9/0019
Abstract: At least one microbeam situated on a substrate, having a resonant frequency dependent on the strain on the microbeam which may be affected by the bending of the substrate. The beam or beams have sense and drive electrodes proximate to the beam or beams and form capacitors with a beam being the other electrode. The capacitance varies as the beam moves in vibration. The sense electrode is connected to an input of a transistor, such as the gate or base, and the drive electrode is connected to an output of the transistor. The transistor has a load impedance with a capacitive component to aid in the sustaining of vibration of the beam at a resonant frequency. A high ohm resistor is connected between the gate and the drain of the transistor to appropriately bias the gate. The bending of the substrate may be caused by a magnitude of a physical stimulus being measured. However, the bending of the substrate is not utilized nor desired in the filter and temperature sensing configurations of the invention. The frequency of resonance is an indication of the magnitude of the physical parameter. Variants of the sensor may be implemented with different placements of the sense and drive electrodes, and additional electronics as needed to implement the various configurations and microbeam geometry. Additional sense and/or drive electrodes and beams also may be incorporated in the transistor resonant microbeam sensor.
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公开(公告)号：EP0315938A2
公开(公告)日：1989-05-17
申请号：EP88118544.1
申请日：1988-11-08
Applicant: HONEYWELL INC.
Inventor： Sullivan, Charles T. , Zook, David J.
CPC classification number: G01J3/02 , G01J3/0221 , G01J3/2803 , G01J3/463 , G01J3/50 , G01J3/502 , G01J2003/466 , G01N2021/1748 , G01N2201/08
Abstract: In a real-time color comparator which performs color comparisons of sample objects to a reference color for the purpose of identification, sorting or matching two optical paths (15, 16) are positioned to collect the light from a reference object (12) and a sample object (11). The light outputs from the two paths are directed onto a spectral dispersive element in the form of a concave diffraction grating (20) that decomposes each light signal into its spectral constituents which are imaged on a dual photodetector array (30). The color signature from the reference and the color signature from the sample are compared.
Abstract translation: 在实时颜色比较器中，为了识别，分类或匹配两个光学路径（15,16），将样本对象与参考色进行颜色比较，定位以收集来自参考对象（12）和 样本对象（11）。 来自两个路径的光输出被引导到凹陷衍射光栅（20）的形式的光谱色散元件上，该衍射光栅将每个光信号分解成其成像在双光电探测器阵列（30）上的光谱成分。 比较来自参考的颜色签名和来自样本的颜色签名。
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公开(公告)号：EP1132728A2
公开(公告)日：2001-09-12
申请号：EP01201984.0
申请日：1995-12-15
Applicant: HONEYWELL INC.
Inventor： Zook, David J.
CPC classification number: G01P15/097 , G01L1/183 , G01L9/0019
Abstract: At least one microbeam situated on a substrate, having a resonant frequency dependent on the strain on the microbeam which may be affected by the bending of the substrate. The beam or beams have sense and drive electrodes proximate to the beam or beams and form capacitors with a beam being the other electrode. The capacitance varies as the beam moves in vibration. The sense electrode is connected to an input of a transistor, such as the gate or base, and the drive electrode is connected to an output of the transistor. The transistor has a load impedance with a capacitive component to aid in the sustaining of vibration of the beam at a resonant frequency. A high ohm resistor is connected between the gate and the drain of the transistor to appropriately bias the gate. The bending of the substrate may be caused by a magnitude of a physical stimulus being measured. However, the bending of the substrate is not utilized nor desired in the filter and temperature sensing configurations of the invention. The frequency of resonance is an indication of the magnitude of the physical parameter. Variants of the sensor may be implemented with different placements of the sense and drive electrodes, and additional electronics as needed to implement the various configurations and microbeam geometry. Additional sense and/or drive electrodes and beams also may be incorporated in the transistor resonant microbeam sensor.
Abstract translation: 至少一个位于基底上的微束，其具有取决于可能受基底弯曲影响的微束上的应变的谐振频率。 所述一个或多个光束具有感测和驱动电极，所述电极靠近所述一个或多个光束并且形成具有作为另一电极的光束的电容器。 随着光束在振动中移动，电容会变化。 感测电极连接到诸如栅极或基极的晶体管的输入，并且驱动电极连接到晶体管的输出。 晶体管具有带有电容元件的负载阻抗，以帮助在谐振频率下维持光束的振动。 高阻抗电阻器连接在晶体管的栅极和漏极之间以适当地偏置栅极。 衬底的弯曲可能由正在测量的物理刺激的大小引起。 然而，在本发明的滤波器和温度感测配置中，基板的弯曲不被使用也不期望。 共振频率表示物理参数的大小。 传感器的变型可以用感测电极和驱动电极的不同位置以及实现各种配置和微束几何形状所需的附加电子器件来实现。 额外的感测和/或驱动电极和光束也可以被包含在晶体管谐振微束传感器中。
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公开(公告)号：EP0315938A3
公开(公告)日：1990-08-22
申请号：EP88118544.1
申请日：1988-11-08
Applicant: HONEYWELL INC.
Inventor： Sullivan, Charles T. , Zook, David J.
CPC classification number: G01J3/02 , G01J3/0221 , G01J3/2803 , G01J3/463 , G01J3/50 , G01J3/502 , G01J2003/466 , G01N2021/1748 , G01N2201/08
Abstract: In a real-time color comparator which performs color comparisons of sample objects to a reference color for the purpose of identification, sorting or matching two optical paths (15, 16) are positioned to collect the light from a reference object (12) and a sample object (11). The light outputs from the two paths are directed onto a spectral dispersive element in the form of a concave diffraction grating (20) that decomposes each light signal into its spectral constituents which are imaged on a dual photodetector array (30). The color signature from the reference and the color signature from the sample are compared.
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