ClassID:

171651

G01R29/22 - CPC Classification

Classification description:

Arrangements for measuring or indicating electric quantities not covered by groups  -  Measuring piezo-electric properties

Recent Application in this class:
#1
20260137861
2026-05-21

Method for Testing Piezoelectric Sound Transducer

#2
20240044728
2024-02-08

Negative Poisson ratio piezoresistive sensor and method of manufacture

#3
20240012038
2024-01-11

ELECTRONIC COMPONENT INSPECTION METHOD

#4
20220326291
2022-10-13

Device and method for determining an effective piezoelectric coefficient of a material

#5
20220203680
2022-06-30

Print apparatus and head

#6
20220152294
2022-05-19

Method for Testing Piezoelectric Sound Transducer

#7
20220052664
2022-02-17

LATERAL FEATURE CONTROL FOR REDUCING COUPLING VARIATION

#8
20220003803
2022-01-06

Method for monitoring polarization quality of piezoelectric film

#9
20200379026
2020-12-03

Piezoelectric property measuring apparatus for liquid or viscous material

#10
20200378752
2020-12-03

DEVICES AND METHODS TO MEASURE SMALL DISPLACEMENTS

#11
20200158769
2020-05-21

Method for measuring equivalent circuit parameters and resonant frequency of piezoelectric resonator

#12
20190277786
2019-09-12

Electromagnetic detector for detection of interface cracks in a piezoelectric-piezomagnetic laminated structure

#13
20190250200
2019-08-15

Self-test for a piezoelectric device

#14
20190170813
2019-06-06

Self-test circuit and a method of checking the integrity of a signal through a signal path

#15
20180210024
2018-07-26

Systems, methods and patches for monitoring a structural health of a connector in overhead transmission lines

#16
20180164360
2018-06-14

CRYSTAL UNIT

#17
20180143232
2018-05-24

THERMAL POLING METHOD, PIEZOELECTRIC FILM AND MANUFACTURING METHOD OF SAME, THERMAL POLING APPARATUS, AND INSPECTION METHOD OF PIEZOELECTRIC PROPERTY

#18
20180073943
2018-03-15

Negative poisson ratio piezoresistive sensor and method of manufacture

#19
20160238647
2016-08-18

System reference with compensation of electrical and mechanical stress and life-time drift effects

#20
20160231368
2016-08-11

Crystal unit

#21
20160223391
2016-08-04

Method for inspecting crystal unit by analyzing frequency characteristics of impedance

#22
20160108720
2016-04-21

Calibration of molded piezoelectric longitudinal charge coefficient of a pressure sensor for blasting operation

#23
20160077141
2016-03-17

Method for determining the opening and/or closing time of the nozzle needle of an injection valve

#24
20160047932
2016-02-18

Electric near-field probe, control system for same, and piezoelectric crystal detector

#25
20150301105
2015-10-22

Piezoelectric or electret sensing device

#26
20150188031
2015-07-02

Thermal poling method, piezoelectric film and manufacturing method of same, thermal poling apparatus, and inspection method of piezoelectric property

#27
20150065894
2015-03-05

Method and apparatus for determining information indicative of cardiac malfunctions and abnormalities

#28
20150054520
2015-02-26

Micropositioning device with multidegrees of freedom for piezoelectric actuators and associated method

#29
20140346892
2014-11-27

Polling system and polling method using the same

#30
20130212848
2013-08-22

Method for monitoring flexural vibrations of a piezoactuator

#31
20120146671
2012-06-14

Method of and apparatus for detecting cracks in piezoelectric element

#32
20110029287
2011-02-03

Self-Diagnosing Transducers and Systems and Methods Therefor

#33
20100088067
2010-04-08

In situ health monitoring of piezoelectric sensors

#34
20100045311
2010-02-25

Dual Electrical Current Sourcing-piezoresistive Material Self-Sensing (DEC-PMSS) System

#35
20090174419
2009-07-09

INSPECTION METHOD, INSPECTION APPARATUS, AND POLARIZATION METHOD FOR PIEZOELECTRIC ELEMENT

#36
20080092675
2008-04-24

Piezoelectric element detection method, oscillation device, and vibrating gyroscope

#37
20080030102
2008-02-07

Inspection method, inspection apparatus, and polarization method for piezoelectric element

#38
20060049833
2006-03-09

System and method for monitoring piezoelectric material performance

#39
14691623
2019-04-09

Piezoelectric field disturbance sensing system and method