ClassID:

171028

G01P5/20 - CPC Classification

Classification description:

Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance using particles entrained by a fluid stream

Recent Application in this class:
#1
20260110706
2026-04-23

NEAR-WALL VELOCIMETRY PROBE USING OPTICAL FIBER BUNDLES

#2
20260036604
2026-02-05

SYSTEMS AND METHODS FOR ESTIMATING A SPEED OF A VEHICLE

#3
20260016499
2026-01-15

VELOCITY MEASUREMENT BY DECORRELATION RATIO OF STRUCTURED OPTICAL SIGNALS

#4
20250334606
2025-10-30

PARTICLE IMAGE VELOCIMETRY OF EXTREME ULTRAVIOLET LITHOGRAPHY SYSTEMS

#5
20250334605
2025-10-30

METHOD AND APPARATUS FOR SIMULTANEOUS MEASUREMENT OF FLOW-FIELD VELOCITY AND TEMPERATURE, AND STORAGE MEDIUM

#6
20240361350
2024-10-31

PARTICLE IMAGE VELOCIMETRY OF EXTREME ULTRAVIOLET LITHOGRAPHY SYSTEMS

#7
20240157627
2024-05-16

Compositions and articles for additive fabrication and methods of using the same in particle image velocimetry testing

#8
20240053251
2024-02-15

METHOD FOR DETERMINING AT LEAST ONE CHARGE CHARACTERISTIC OF ELECTRICAL CHARGES OF PARTICLES IN A FLUID STREAM AND A FLUID STREAM CHARGE MEASURING DEVICE

#9
20230349943
2023-11-02

FLUID MEASURING METHOD AND DEVICE AND ELECTRONIC EQUIPMENT

#10
20230296642
2023-09-21

Particle image velocimetry of extreme ultraviolet lithography systems

#11
20230236215
2023-07-27

Structured-light velocimeter and velocimetry method

#12
20220390481
2022-12-08

Mode decomposition method applicable to flow field analysis and reconstruction of internal solitary wave test

#13
20220162540
2022-05-26

METHOD AND DEVICE FOR TRANSFECTING CELLS

#14
20220099696
2022-03-31

FLOW VELOCITY DETERMINING APPARATUS

#15
20220074965
2022-03-10

Froth bubble moving speed measuring device and method of measuring froth bubble moving speed, flotation apparatus and flotation method using same

#16
20220033553
2022-02-03

Compositions and articles for additive fabrication and methods of using the same

#17
20220026460
2022-01-27

FLOW RATE SENSOR DEVICE AND FLOW RATE SENSOR DEVICE EQUIPPED WITH COVER

#18
20220026253
2022-01-27

Evaluation of flow properties in physical media

#19
20210363974
2021-11-25

Wind turbine

#20
20210341290
2021-11-04

Apparatus and method for processing a fluid zone

#21
20210294220
2021-09-23

Particle image velocimetry of extreme ultraviolet lithography systems

#22
20210072274
2021-03-11

Microfluidic flow sensor

#23
20200378999
2020-12-03

Rainbow particle imaging velocimetry for dense 3D fluid velocity imaging

#24
20200339718
2020-10-29

Compositions and articles for additive fabrication and methods of using the same

#25
20200319082
2020-10-08

Particulate matter sensors based on split beam self-mixing interferometry sensors

#26
20200202572
2020-06-25

Method for calibrating an optical measurement set-up

#27
20200103433
2020-04-02

Particle image velocimetry of extreme ultraviolet lithography systems

#28
20190376998
2019-12-12

Stereo particle image velocimetry (PIV) system for long term coastal ocean deployment

#29
20190146002
2019-05-16

Droplet velocity detection

#30
20190139235
2019-05-09

Method of tracking a plurality of point-shaped objects in a three-dimensional space

#31
20180330520
2018-11-15

Method and system for calibrating a velocimetry system

#32
20180321273
2018-11-08

Particle image velocimetry and control method therefor

#33
20180246137
2018-08-30

Rainbow particle imaging velocimetry for dense 3D fluid velocity imaging

#34
20180244814
2018-08-30

Dye doped polymer microparticles

#35
20170299620
2017-10-19

Online measuring method of particle velocity in multiphase system

#36
20160377568
2016-12-29

Conductivity Measurement of Fluids

#37
20160131675
2016-05-12

Droplet velocity detection

#38
20160131627
2016-05-12

Reaction carrier, measuring system and measuring method for determining gas and particle concentrations, and optical flow sensor

#39
20160084868
2016-03-24

Method of determining a changing spatial distribution of particles at multiple points in time

#40
20150322336
2015-11-12

Method of making dye-doped polystyre microparticles

#41
20150287212
2015-10-08

Methods and systems for image data processing

#42
20140354795
2014-12-04

Low cost optical high speed discrete measurement system

#43
20140333935
2014-11-13

Tracking and characterizing particles with holographic video microscopy

#44
20140266267
2014-09-18

Conductivity measurement of fluids

#45
20140125058
2014-05-08

Wind turbine optical wind sensor

#46
20130016335
2013-01-17

Optical space-time coding technique in microfluidic devices

#47
20120318057
2012-12-20

Wind turbine optical wind sensor

#48
20110199603
2011-08-18

Method for observing fluid and fluid flow observation

#49
20110043607
2011-02-24

Tracking and characterizing particles with holographic video microscopy

#50
20110025826
2011-02-03

Color-coded backlighted single camera three-dimensional defocusing particle image velocimetry system

#51
20100224119
2010-09-09

Wind Detector Devices and Methods of Detecting Wind

#52
20100195089
2010-08-05

WIND VELOCITY MEASUREMENT SYSTEM AND METHOD

#53
20100045967
2010-02-25

Velocity detector

#54
20100039638
2010-02-18

Self-contained underwater velocimetry apparatus

#55
20100033707
2010-02-11

DEVICE AND METHOD FOR THREE-DIMENSIONAL FLOW MEASUREMENT

#56
20100017166
2010-01-21

Velocity detector

#57
20090323048
2009-12-31

Optical transit time velocimeter

#58
20090234595
2009-09-17

Fluid flow computation, visualization, and analysis

#59
20090217751
2009-09-03

Simplified anemoscope

#60
20090126505
2009-05-21

Flowmeter for fine channel, analyzer using the same, and cartridge for analyzer

#61
20090103073
2009-04-23

Device and method for flow state observation

#62
20080297763
2008-12-04

SINGLE AXIS SCANNING PIV SYSTEM AND METHOD

#63
20080297762
2008-12-04

System and method for determining crosswinds

#64
20080200865
2008-08-21

Dialysis system having optical flowrate detection

#65
20080137992
2008-06-12

Fluid Flow Measurement System, Fluid Flow Measurement Method, And Computer Program

#66
20080068605
2008-03-20

Method and apparatus for simultaneously measuring a three dimensional position of a particle in a flow

#67
20070272007
2007-11-29

Fluid measuring system and fluid measuring method

#68
20070268602
2007-11-22

Fluid measuring system and long focal point optical system

#69
20070115455
2007-05-24

Particle image velocimetry system having an improved hollow-waveguide-based laser illumination system

#70
20070107512
2007-05-17

Flow state observation device and flow state observation method

#71
20070064218
2007-03-22

Optical flow meter for measuring gases and liquids in pipelines

#72
20070044572
2007-03-01

Method and apparatus for measuring parameters of a fluid flow using an array of sensors

#73
20060175561
2006-08-10

Particle shadow velocimetry

#74
20060152722
2006-07-13

Method and apparatus for measuring particle motion using scattered radiation

#75
20060146910
2006-07-06

Method and apparatus for simultaneous velocity and temperature measurements in fluid flow

#76
20060072101
2006-04-06

System and method for measuring tip velocity of sprayed fuel

#77
20060044548
2006-03-02

System for visualizing flow and measuring velocity field using X-ray particle image velocimetry

#78
20050284627
2005-12-29

Flowshot technique

#79
20050284626
2005-12-29

Flowshot technique

#80
20050283323
2005-12-22

Method and system for shear flow profiling

#81
20050219507
2005-10-06

Method for measuring the flow of fluids

#82
15672587
2017-11-14

Low cost optical high speed discrete measurement system

#83
13493024
2015-03-24

Methods and systems for wind detection