-
公开(公告)号：US07404671B2
公开(公告)日：2008-07-29
申请号：US11372628
申请日：2006-03-09
IPC分类号： G01K11/22
摘要： Acoustic temperature measurement at a remote location is provided. An acoustic source transmits acoustic radiation to an acoustic receiver along an acoustic path. The path passes through or near the remote location. The temperature is non-uniform along the path. A change in an integrated acoustic delay between the source and receiver along the path is measured. This acoustic delay can be either a phase velocity delay or a group velocity delay. The temperature at the remote location is determined by relating the measured change in integrated acoustic delay to the remote location temperature with a combined thermal-acoustic model. The combined model relates temperature to acoustic propagation velocity along the path. The combined model preferably includes temperatures of the source and receiver locations, and a heat source geometry at the remote location.
摘要翻译： 提供远程位置的声温测量。 声源将声辐射沿着声学路径传送到声学接收器。 路径通过或靠近远程位置。 温度沿路径不均匀。 测量沿着路径的源和接收器之间的集成声学延迟的变化。 该声学延迟可以是相速度延迟或组速度延迟。 通过将测量的整体声学延迟的变化与远程位置温度的组合热声模型相关联来确定远程位置处的温度。 组合模型将温度与沿路径的声传播速度相关联。 组合模型优选地包括源和接收器位置的温度，以及远程位置处的热源几何形状。
-
公开(公告)号：US20100227295A1
公开(公告)日：2010-09-09
申请号：US12708741
申请日：2010-02-19
CPC分类号： A61B8/0875 , A61B8/483 , A61C19/04
摘要： Example embodiments of this invention include a method and a device for assessing the internal structure of the tooth. In one example, the method is comprised of emitting a sequence of ultrasonic pulses from a given point on the tooth surface into the tooth at various directions of incidence (angles of incidence) with respect to the local tooth surface, recording the corresponding sequence of ultrasonic echoes from different internal dental formations, and processing the collected ultrasonic pulse-echo and pulse-direction data to present internal structure of the tooth in quantitative or graphical form.
摘要翻译： 本发明的示例性实施例包括用于评估牙齿内部结构的方法和装置。 在一个示例中，该方法包括从相对于局部牙齿表面的各种入射方向（入射角）从牙齿表面上的给定点发射到牙齿中的超声波脉冲序列，记录相应的超声波序列 来自不同内部牙齿组织的回波，并且处理收集的超声波脉冲回波和脉冲方向数据以定量或图形的形式呈现牙齿的内部结构。
-
公开(公告)号：US10603008B2
公开(公告)日：2020-03-31
申请号：US12708741
申请日：2010-02-19
摘要： Example embodiments of this invention include a method and a device for assessing the internal structure of the tooth. In one example, the method is comprised of emitting a sequence of ultrasonic pulses from a given point on the tooth surface into the tooth at various directions of incidence (angles of incidence) with respect to the local tooth surface, recording the corresponding sequence of ultrasonic echoes from different internal dental formations, and processing the collected ultrasonic pulse-echo and pulse-direction data to present internal structure of the tooth in quantitative or graphical form.
-
-
搜索结果
3 条记录 (耗时 0.013 秒)
