公开(公告)号：US10989732B2

公开(公告)日：2021-04-27

申请号：US15302976

申请日：2015-04-10

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Kui Yao ,  Zhiyuan Shen ,  Chin Yaw Tan ,  Yi Fan Chen ,  Lei Zhang

IPC: G01P15/09 ,  G01H11/08 ,  G01P15/08 ,  H04B1/04

Abstract: Wireless piezoelectric accelerometers and systems are provided. A wireless piezoelectric accelerometer may comprise a piezoelectric sensing element configured to sense mechanical acceleration and produce an electrical charge signal in response of the sensed mechanical acceleration, a signal processing module (SPM) configured to convert the electrical charge signal into a voltage signal, and process and digitize the voltage signal, and a wireless module configured to modulate and transmit the digitized voltage signal as wireless signals. The piezoelectric sensing element, the SPM and the wireless module are packaged in a casing. The casing comprises a metallic shielding chamber configured to enclose the piezoelectric sensing element. The casing further comprises a non-metallic portion located in relative to the wireless module to allow transmission of the wireless signals. Corresponding wireless piezoelectric accelerometer systems are also provided.

公开(公告)号：US20210193105A1

公开(公告)日：2021-06-24

申请号：US17268782

申请日：2019-08-23

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Meysam Sharifzadeh Mirshekarloo ,  Kui Yao ,  Mojtaba Rahimabady ,  Chin Yaw Tan

IPC: G10K11/178 ,  B06B1/06 ,  E06B5/20

Abstract: A noise management system for a window includes an active noise control (ANC) module and a passive sound absorbing module. The ANC module is disposed in or adjacent a ventilation channel of the window and configured to substantially cancel low-frequency noise entering the ventilation channel. The passive sound absorbing module is disposed in or adjacent to the ventilation channel and configured to absorb both high-frequency noise entering the channel and harmonic sounds generated by the ANC module.

公开(公告)号：US20170030944A1

公开(公告)日：2017-02-02

申请号：US15302976

申请日：2015-04-10

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Kui Yao ,  Zhiyuan Shen ,  Chin Yaw Tan ,  Yi Fan Chen ,  Lei Zhang

IPC: G01P15/09 ,  G01P15/08 ,  G01H11/08

CPC classification number: G01P15/0915 ,  G01H11/08 ,  G01P15/0802 ,  G01P15/0922 ,  G01P2015/0865 ,  H04B1/04

Abstract: Wireless piezoelectric accelerometers and systems are provided. A wireless piezoelectric accelerometer may comprise a piezoelectric sensing element configured to sense mechanical acceleration and produce an electrical charge signal in response of the sensed mechanical acceleration, a signal processing module (SPM) configured to convert the electrical charge signal into a voltage signal, and process and digitize the voltage signal, and a wireless module configured to modulate and transmit the digitized voltage signal as wireless signals. The piezoelectric sensing element, the SPM and the wireless module are packaged in a casing. The casing comprises a metallic shielding chamber configured to enclose the piezoelectric sensing element. The casing further comprises a non-metallic portion located in relative to the wireless module to allow transmission of the wireless signals. Corresponding wireless piezoelectric accelerometer systems are also provided.

Abstract translation: 提供无线压电加速度计和系统。 无线压电加速度计可以包括被配置为感测机械加速度并响应于感测的机械加速度而产生电荷信号的压电感测元件，被配置为将电荷信号转换成电压信号的信号处理模块（SPM） 并且对电压信号进行数字化，以及被配置为将数字化电压信号调制和发送为无线信号的无线模块。 压电传感元件，SPM和无线模块封装在外壳中。 壳体包括被配置为包围压电感测元件的金属屏蔽室。 壳体还包括相对于无线模块定位的非金属部分，以允许传输无线信号。 还提供了相应的无线压电加速度计系统。