公开(公告)号：US20120216629A1

公开(公告)日：2012-08-30

申请号：US13035639

申请日：2011-02-25

申请人： Liji Huang ,  Chih-Chang Chen ,  Yahong Yao ,  Xiaozhong Wu

发明人： Liji Huang ,  Chih-Chang Chen ,  Yahong Yao ,  Xiaozhong Wu

IPC分类号： G01F1/708

CPC分类号： G01F1/7084 ,  G01F1/72

摘要： An apparatus comprising a micromachined (a.k.a. MEMS, Micro Electro Mechanical Systems) silicon flow sensor, a flow channel package, and a driving circuitry, which operates in a working principle of thermal time-of-flight (TOF) to measure gas or liquid flow speed, is disclosed in the present invention. The micromachining technique for fabricating this MEMS time-of-flight silicon thermal flow sensor can greatly reduce the sensor fabrication cost by batch production. This microfabrication process for silicon time-of-flight thermal flow sensors provides merits of small feature size, low power consumption, and high accuracy compared to conventional manufacturing methods. Thermal time-of-flight technology in principle can provide accurate flow speed measurements for gases regardless of its gas compositions. In addition, the present invention further discloses the package design and driving circuitry which is utilized by the correlated working principle.

摘要翻译： 一种包括微加工（也称为MEMS，微机电系统）硅流量传感器，流动通道封装和驱动电路的装置，其以热时间飞行（TOF）的工作原理工作以测量气体或液体流量 速度，在本发明中公开。 用于制造这种MEMS飞行时间硅热流量传感器的微加工技术可以通过批量生产大大降低传感器制造成本。 与传统的制造方法相比，这种用于硅时间飞行热流传感器的微加工工艺具有小特征尺寸，低功耗和高精度的优点。 原理上，热时间飞行技术可以为气体提供准确的流速测量，无论其气体成分如何。 此外，本发明还公开了通过相关工作原理利用的封装设计和驱动电路。

公开(公告)号：US08794082B2

公开(公告)日：2014-08-05

申请号：US13035639

申请日：2011-02-25

申请人： Liji Huang ,  Xiaozhong Wu ,  Yahong Yao ,  Chih-Chang Chen

发明人： Liji Huang ,  Xiaozhong Wu ,  Yahong Yao ,  Chih-Chang Chen

IPC分类号： G01F1/708 ,  G01F1/68 ,  G01F1/72

CPC分类号： G01F1/7084 ,  G01F1/72

摘要： An apparatus comprising a micromachined (a.k.a. MEMS, Micro Electro Mechanical Systems) silicon flow sensor, a flow channel package, and a driving circuitry, which operates in a working principle of thermal time-of-flight (TOF) to measure gas or liquid flow speed, is disclosed in the present invention. The micromachining technique for fabricating this MEMS time-of-flight silicon thermal flow sensor can greatly reduce the sensor fabrication cost by batch production. This microfabrication process for silicon time-of-flight thermal flow sensors provides merits of small feature size, low power consumption, and high accuracy compared to conventional manufacturing methods. Thermal time-of-flight technology in principle can provide accurate flow speed measurements for gases regardless of its gas compositions. In addition, the present invention further discloses the package design and driving circuitry which is utilized by the correlated working principle.

摘要翻译： 一种包括微加工（也称为MEMS，微机电系统）硅流量传感器，流动通道封装和驱动电路的装置，其以热时间飞行（TOF）的工作原理工作以测量气体或液体流量 速度，在本发明中公开。 用于制造这种MEMS飞行时间硅热流量传感器的微加工技术可以通过批量生产大大降低传感器制造成本。 与传统的制造方法相比，这种用于硅时间飞行热流传感器的微加工工艺具有小特征尺寸，低功耗和高精度的优点。 原理上，热时间飞行技术可以为气体提供准确的流速测量，无论其气体成分如何。 此外，本发明还公开了通过相关工作原理利用的封装设计和驱动电路。

公开(公告)号：US20090049907A1

公开(公告)日：2009-02-26

申请号：US12229605

申请日：2008-08-24

申请人： Xiaozhong Wu ,  Liji Huang

发明人： Xiaozhong Wu ,  Liji Huang

IPC分类号： G01F1/692

CPC分类号： G01F1/7084 ,  G01F1/6845 ,  G01F1/699 ,  G01F25/0007

摘要： This invention discloses a mass flow sensor manufactured by applying the micro-electromechanical system (MEMS) process to provide a new and improved mass flow sensor that is a self-calibrated in a time-of-flight manner with configuration to measure the flow velocity directly. The self-calibration of a mass flow rate sensor is achieved by providing an electric pulse to a heater in the flow and determining a temperature variations of the fluid. The method further includes a step of measuring a temperature variation by a temperature sensor disposed at a short distance from the heater. The method further includes a step of correlating the temperature variation measured at the temperature sensor with the temperature variation of the heater to determine a time delay and a corresponding flow velocity.

摘要翻译： 本发明公开了一种通过应用微机电系统（MEMS）工艺制造的质量流量传感器，以提供新的和改进的质量流量传感器，其是以飞行时间方式自动校准的配置，以直接测量流速 。 通过向流中的加热器提供电脉冲并确定流体的温度变化来实现质量流量传感器的自校准。 该方法还包括通过设置在与加热器短距离的温度传感器来测量温度变化的步骤。 该方法还包括将温度传感器处测量的温度变化与加热器的温度变化相关联以确定时间延迟和相应的流速的步骤。

公开(公告)号：US07797997B2

公开(公告)日：2010-09-21

申请号：US12229605

申请日：2008-08-24

申请人： Xiaozhong Wu ,  Liji Huang

发明人： Xiaozhong Wu ,  Liji Huang

IPC分类号： G01F1/68

CPC分类号： G01F1/7084 ,  G01F1/6845 ,  G01F1/699 ,  G01F25/0007

摘要： This invention discloses a mass flow sensor manufactured by applying the micro-electromechanical system (MEMS) process to provide a new and improved mass flow sensor that is a self-calibrated in a time-of-flight manner with configuration to measure the flow velocity directly. The self-calibration of a mass flow rate sensor is achieved by providing an electric pulse to a heater in the flow and determining a temperature variations of the fluid. The method further includes a step of measuring a temperature variation by a temperature sensor disposed at a short distance from the heater. The method further includes a step of correlating the temperature variation measured at the temperature sensor with the temperature variation of the heater to determine a time delay and a corresponding flow velocity.

摘要翻译： 本发明公开了一种通过应用微机电系统（MEMS）工艺制造的质量流量传感器，以提供新的和改进的质量流量传感器，其是以飞行时间方式自动校准的配置，以直接测量流速 。 通过向流中的加热器提供电脉冲并确定流体的温度变化来实现质量流量传感器的自校准。 该方法还包括通过设置在与加热器短距离的温度传感器来测量温度变化的步骤。 该方法还包括将温度传感器处测量的温度变化与加热器的温度变化相关联以确定时间延迟和相应的流速的步骤。

公开(公告)号：US12117269B1

公开(公告)日：2024-10-15

申请号：US18418297

申请日：2024-01-21

申请人： Xiaozhong Wu

发明人： Xiaozhong Wu

IPC分类号： F41G1/30 ,  F41G11/00 ,  G02B7/02 ,  G02B27/20

CPC分类号： F41G11/003 ,  G02B7/02 ,  G02B27/20

摘要： The present disclosure provides a drop-resistant red dot scope base and a red dot scope. The drop-resistant red dot scope base includes: a mounting base body having a mounting portion, wherein the mounting portion is provided with a mounting hole, and the mounting hole is used for accommodating a lens; a first protective base body disposed on a front end of the mounting base body and connected to the mounting base body, and provided with a first avoidance hole, wherein the first avoidance hole is connected to a front end of the mounting hole, wherein a projection in a forward and rearward direction of the first protective base body protrudes out of a projection in a forward and rearward direction of the mounting base body; a second protective base body disposed on a rear end of the mounting base body and connected to the mounting base body, and provided with a second avoidance hole, wherein the second avoidance hole is connected to a rear end of the mounting hole, wherein a projection in a forward and rearward direction of the second protective base body protrudes out of a projection in a forward and rearward direction of the mounting base body. It can effectively prevent the lens from falling and cracking, and can realize all-round protection for the lens, with good drop-resistant performance and better durability, which can reduce the maintenance cost and help to promote the popularization and application.

公开(公告)号：USD1037404S1

公开(公告)日：2024-07-30

申请号：US29879826

申请日：2023-07-13

申请人： Xiaozhong Wu

设计人： Xiaozhong Wu

摘要： FIG. 1 is a front, top perspective view of a red dot sight, showing my new design;
FIG. 2 is a rear, top perspective view thereof;
FIG. 3 is a rear, bottom perspective view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a right side elevation view thereof;
FIG. 8 is a top plan view thereof; and,
FIG. 9 is a bottom plan view thereof.
The broken lines in the figures illustrate portions of the red dot sight that form no part of the claimed design.