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    Piezoelectric sensing system and piezoelectric sensing circuit
    1.
    发明授权
    Piezoelectric sensing system and piezoelectric sensing circuit 有权

    公开(公告)号：US11411161B2

    公开(公告)日：2022-08-09

    申请号：US16849828

    申请日：2020-04-15

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Chih-Hsiou Lin ,  Shih-Ting Lin ,  Chung-Yuan Su ,  Chao-Ta Huang

    IPC: G06F3/041 ,  G09G5/08 ,  H01L41/04 ,  G01L1/16 ,  H01L41/113

    Abstract: A piezoelectric system comprises a piezoelectric sensor, a voltage stabilizer, a discharger and an operation sensor. The piezoelectric sensor outputs a sensing signal through a sensor output terminal according to a rate of change of pressure. The voltage stabilizer has a positive terminal electrically connecting with the sensor output terminal. The voltage stabilizer receives the sensing signal, stores the energy of the sensing signal, and keeps the voltage of the sensing signal as a constant when the rate of change of pressure is zero. The discharger has a first terminal connecting with the positive terminal, a second terminal coupled to ground, and a control terminal receiving a trigger signal to control the first terminal to conduct with or not conduct with the second terminal. The operation sensor electrically connects to the control terminal for sensing an operation generating the pressure and outputs the trigger signal accordingly.

    LASER INSPECTION SYSTEM
    4.
    发明申请
    LASER INSPECTION SYSTEM 有权

    公开(公告)号：US20220131326A1

    公开(公告)日：2022-04-28

    申请号：US17101081

    申请日：2020-11-23

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Yi-Chi Lee ,  Hsin-Chia Su ,  Shih-Ting Lin ,  Yu-Cheng Song ,  Fu-Shun Ho ,  Chih-Chun Chen

    IPC: H01S3/00 ,  H01S3/067 ,  H01S3/16 ,  G02B6/293

    Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.

    Microelectromechanical apparatus having a measuring range selector
    5.
    发明授权
    Microelectromechanical apparatus having a measuring range selector 有权

    公开(公告)号：US10203252B2

    公开(公告)日：2019-02-12

    申请号：US15393254

    申请日：2016-12-29

    Applicant: Industrial Technology Research Institute

    Inventor： Yu-Wen Hsu ,  Feng-Chia Hsu ,  Chao-Ta Huang ,  Shih-Ting Lin

    IPC: G01K7/00 ,  G01K1/00 ,  G01K7/22 ,  B81B7/02 ,  G01K1/02 ,  B81B7/00

    Abstract: A MEMS apparatus having measuring range selector including a sensor and an IC chip is provided. The sensor includes a sensing device. The IC chip includes a voltage range selector, an analog front end, a control device and an A/D converter. The sensing device is configured to detect the physical quantity and generate a sensing voltage. The voltage range selector is configured to select a sub-voltage range having a first upper-bound and a first lower-bound. The analog front end is configured to receive the sensing voltage and output a first voltage. The A/D converter has a full scale voltage range having a second lower-bound and a second upper-bound. A ratio of the full scale voltage range to the sub-voltage range is defined as a gain factor. A difference obtained by subtracting the first lower-bound from the first voltage is defined as a shift factor. The control device is configured to adjust the first voltage to the second voltage according to the gain factor and the shift factor.

    Spindle shaft device with torque sensor
    7.
    发明授权
    Spindle shaft device with torque sensor 有权

    公开(公告)号：US11543312B2

    公开(公告)日：2023-01-03

    申请号：US17234263

    申请日：2021-04-19

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Chien-Nan Yeh ,  Pei-Yu Chang ,  Shih-Ting Lin ,  Chao-Ta Huang

    IPC: G01L3/10 ,  H02K21/22 ,  B62J45/42 ,  B62J45/411

    Abstract: A spindle shaft device including a shaft, a first torque sensor, and a second torque sensor. The shaft extends along an axial direction and comprises a first side portion, a second side portion, and a central portion located between the first side portion and the second side portion. The central portion has a central torsional rigidity with respect to the axial direction. The first side portion has a first torsional rigidity with respect to the axial direction. The second side portion has a second torsional rigidity with respect to the axial direction. The first torsional rigidity is smaller than the central torsional rigidity. The second torsional rigidity is smaller than the central torsional rigidity. The first torque sensor is disposed on the first side portion. The second torque sensor is disposed on the second side portion.

    MICROELECTROMECHANICAL APPARATUS HAVING A MEASURING RANGE SELECTOR
    8.
    发明申请
    MICROELECTROMECHANICAL APPARATUS HAVING A MEASURING RANGE SELECTOR 审中-公开

    公开(公告)号：US20180188115A1

    公开(公告)日：2018-07-05

    申请号：US15393254

    申请日：2016-12-29

    Applicant: Industrial Technology Research Institute

    Inventor： Yu-Wen Hsu ,  Feng-Chia Hsu ,  Chao-Ta Huang ,  Shih-Ting Lin

    IPC: G01K7/22 ,  B81B7/02

    CPC classification number: G01K7/226 ,  B81B7/008 ,  B81B7/02 ,  G01K1/02 ,  G01K2219/00

    Abstract: A MEMS apparatus having measuring range selector including a sensor and an IC chip is provided. The sensor includes a sensing device. The IC chip includes a voltage range selector, an analog front end, a control device and an A/D converter. The sensing device is configured to detect the physical quantity and generate a sensing voltage. The voltage range selector is configured to select a sub-voltage range having a first upper-bound and a first lower-bound. The analog front end is configured to receive the sensing voltage and output a first voltage. The A/D converter has a full scale voltage range having a second lower-bound and a second upper-bound. A ratio of the full scale voltage range to the sub-voltage range is defined as a gain factor. A difference obtained by subtracting the first lower-bound from the first voltage is defined as a shift factor. The control device is configured to adjust the first voltage to the second voltage according to the gain factor and the shift factor.

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