公开(公告)号：US20180193849A1

公开(公告)日：2018-07-12

申请号：US15739695

申请日：2016-06-22

申请人： AGENCY FOR SCIENCE. TECHNOLOGY AND RESEARCH

发明人： Meysam SHARIFZADEH MIRSHEKARLOO ,  Kui YAO ,  Szu Cheng LAI ,  Chee Kiang Ivan TAN ,  Lei ZHANG

IPC分类号： B05B1/08 ,  H01L41/083 ,  H01L41/187 ,  H02N2/04 ,  H02N2/06

CPC分类号： B05B1/083 ,  H01L41/083 ,  H01L41/1875 ,  H02N2/043 ,  H02N2/067

摘要： A fluid jet dispenser using at least two multilayer piezoelectric actuators is provided. The fluid jet dispenser includes a dispensing head and an electrical driver. The dispensing head includes at least two d31-mode multilayer piezoelectric actuators, a displacement magnifying element mechanically coupled to the d31-mode multilayer piezoelectric actuators, a piston, and a nozzle. More preferably, the two d31-mode multilayer piezoelectric actuators operate in an anti-phase condition. The electrical driver is electrically coupled to the d31-mode multilayer piezoelectric actuators for displacing the actuators in directions substantially perpendicular to polarization of piezoelectric layers in the d31-mode multilayer piezoelectric actuators in response to charging and discharging of the actuators by the electrical driver, to generate a fast movement of the piston to jet a pressurized fluid out of the nozzle of the dispensing head.

公开(公告)号：US20230326442A1

公开(公告)日：2023-10-12

申请号：US18022975

申请日：2021-08-04

申请人： Agency for Science, Technology and Research

发明人： Kui YAO ,  Siao Li LIEW ,  Shuting CHEN ,  Sze Yu TAN ,  Rogério SALLOUM ,  Hong YAN ,  Lei ZHANG ,  Szu Cheng LAI

IPC分类号： G10K11/165 ,  C09D7/61 ,  C09D7/40 ,  C09D5/24 ,  C09D163/00 ,  C09D137/00 ,  C09D123/08 ,  C09D113/00

CPC分类号： G10K11/165 ,  C09D7/61 ,  C09D7/70 ,  C09D5/24 ,  C09D163/00 ,  C09D137/00 ,  C09D123/0853 ,  C09D113/00 ,  C09D7/69

摘要： A composite coating material for passive vibration damping is provided. The composite coating material includes a polymer matrix, and a piezoelectric ceramic filler and an electrically conductive filler dispersed in the polymer matrix. Particles of the piezoelectric ceramic filler have an average particle size of greater than about 100 microns (μm).

公开(公告)号：US20190120760A1

公开(公告)日：2019-04-25

申请号：US16090166

申请日：2017-03-30

申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

发明人： Szu Cheng LAI ,  Lin KE ,  Nan ZHANG

IPC分类号： G01N21/51 ,  G01N33/04 ,  G01N33/14

摘要： In a first aspect, a system for analysing a fluid sample is provided, comprises: a container configured to receive the fluid sample; a first light source optically coupled to the container and configured to project a first light having a first wavelength; a second light source optically coupled to the container and configured to project a second light having a second wavelength different from the first wavelength; one or more photo-sensors optically coupled to the container and configured to analyse the fluid sample in response to a first scattered light generated in response to projecting the fluid sample with the first light source and a second scattered light generated in response to projecting the fluid sample with the second light source. In a preferred embodiment, the nutritious compositions (such as the concentration of fats and protein) of milk samples are identified based on the scattering of the first and second light source by the milk sample.