ClassID:

171061

G01P13/045 - CPC Classification

Classification description:

Indicating or recording presence, absence, or direction, of movement; Indicating direction only, e.g. by weather vane; Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement with speed indication

Recent Application in this class:
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20260018968
2026-01-15

SYSTEMS AND METHODS FOR SMART CARBON CAPTURE AND POWER GENERATION

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20250334605
2025-10-30

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

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20250251419
2025-08-07

MEASUREMENT DEVICE AND ROTATION DETECTION METHOD

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20250035663
2025-01-30

SYSTEMS AND METHODS FOR STARTING A SENSORLESS MOTOR

#5
20240377427
2024-11-14

Rotating direction and rotating speed sensing device

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20240369986
2024-11-07

Systems and Methods for a Resolver and Motor Control with Enhanced Speed and Direction Monitoring

#7
20240327029
2024-10-03

METEOROLOGICAL EQUIPMENT TO SUPPORT FLIGHT OPERATIONS OF VERTICAL TAKEOFF AND LANDING AIRCRAFT

#8
20240310196
2024-09-19

NON-INVASIVE METHOD AND SYSTEM TO MEASURE THE SURFACE VELOCITY OF A FLUID FLOWING IN A RIVER, OPEN CHANNEL OR IN AN UNDERGROUND PIPE

#9
20240302403
2024-09-12

APPARATUS FOR MEASURING WIND VELOCITY AND WIND DIRECTION AND RELATED SYSTEMS AND METHODS

#10
20240295578
2024-09-05

DEVICE FOR DETECTING THE DIRECTION OF ROTATION OF A ROTOR, ASSOCIATED CONTROL AND DRIVE SYSTEMS, AND ASSOCIATED METHOD

#11
20240173729
2024-05-30

COATING DEVICE, IN PARTICULAR ROTARY ATOMIZER

#12
20240142371
2024-05-02

Air quality monitoring system and method

#13
20230417661
2023-12-28

Air quality monitoring system and method

#14
20230314313
2023-10-05

Air quality monitoring system and method

#15
20230271721
2023-08-31

Meteorological equipment to support flight operations of vertical takeoff and landing aircraft

#16
20230258684
2023-08-17

OMNIDIRECTIONAL ROTATIONAL SPEED AND ROTATIONAL DIRECTION SENSOR

#17
20230160815
2023-05-25

Air quality monitoring system and method

#18
20230017339
2023-01-19

Systems and methods for starting a sensorless motor

#19
20220397521
2022-12-15

Air quality monitoring system and method

#20
20220397520
2022-12-15

Air quality monitoring system and method

#21
20220381800
2022-12-01

AMR SPEED AND DIRECTION SENSOR FOR USE WITH MAGNETIC TARGETS

#22
20220349706
2022-11-03

DISPLACEMENT METER AND ARTICLE MANUFACTURING METHOD

#23
20220278637
2022-09-01

Estimation of rotor operational characteristics for a wind turbine

#24
20220091150
2022-03-24

Wafer type sensor unit and data acquisition method using the wafer type sensor unit

#25
20220091026
2022-03-24

Air quality monitoring system and method

#26
20220074390
2022-03-10

A METHOD AND A SYSTEM FOR DETERMING THE WIND SPEED OR THE WIND DIRECTION EXPERIENCED BY A WIND TURBINE

#27
20220014131
2022-01-13

Two output pin protocol for speed, direction, and diagnosis

#28
20210364544
2021-11-25

Method and device for determining a speed by means of an inductive speed sensor

#29
20210363974
2021-11-25

Wind turbine

#30
20210356491
2021-11-18

Two-dimensional wind-speed and wind-direction sensor and system thereof

#31
20210270123
2021-09-02

Method and system for monitoring moving elements

#32
20210263062
2021-08-26

Underwater detector, instrument and method for measuring velocity and direction of groundwater

#33
20210247419
2021-08-12

Ship Real Wind Measuring Device Calibration Method

#34
20210239728
2021-08-05

IMPROVEMENTS RELATING TO DETECTION OF PHYSICAL PERFORMANCE

#35
20210231700
2021-07-29

Anemometer

#36
20210231507
2021-07-29

MEASURING APPARATUS, AND MEASURING METHOD

#37
20210181231
2021-06-17

Systems and methods for determining wind velocity

#38
20210108947
2021-04-15

Rotation parameter detection method, encoder, laser radar and unmanned aerial vehicle

#39
20210102969
2021-04-08

Flow rate measuring method, flow rate measuring device, and program

#40
20200398959
2020-12-24

Marine emissions detection

#41
20200386575
2020-12-10

Magnetic field sensors and output signal formats for magnetic field sensors

#42
20200284819
2020-09-10

Systems and methods for determining wind velocity

#43
20200249252
2020-08-06

Airflow measurement device

#44
20200232822
2020-07-23

Magnetic field sensor for detecting an absolute position of a target object

#45
20200232385
2020-07-23

System and method for controlling opposed piston engine operation for rotation direction

#46
20200225258
2020-07-16

METHOD AND SYSTEM FOR GENERATING A SIGNAL INDICATING THE ROTATIONAL SPEED OF A DRUM

#47
20200209306
2020-07-02

Method and device for detecting an inverted connection of a crankshaft sensor

#48
20200182899
2020-06-11

Rotational speed sensor arrangement

#49
20200149930
2020-05-14

Rotation parameter detection method, encoder, laser radar and unmanned aerial vehicle

#50
20200088756
2020-03-19

System and method for estimating wheel speed of vehicle

#51
20200025972
2020-01-23

Adaptive guided wind sonde

#52
20190361044
2019-11-28

System for measuring the distance of an obstacle using optical flow

#53
20190323840
2019-10-24

Travelling direction calculation apparatus, travelling direction decision method, and non-transitory computer readable medium

#54
20190317122
2019-10-17

Wind measurement apparatus based on 3D non-orthogonal ultrasonic sensor array

#55
20190212177
2019-07-11

Method of detecting fluid flows, corresponding device and computer program product

#56
20190208321
2019-07-04

Signal processing device and signal processing method for detection of direction of movement of a region

#57
20190187168
2019-06-20

Wind estimation system, wind estimation method, and program

#58
20190162561
2019-05-30

Mechanically powering sensors using a magnetic field

#59
20190145443
2019-05-16

Method and apparatus for combined anemometer and plasma actuator

#60
20190112069
2019-04-18

Methods and apparatus to reduce static pressure measuring error

#61
20190063950
2019-02-28

TECHNIQUES FOR REDUCING POWER CONSUMPTION IN MAGNETIC TRACKING SYSTEM

#62
20190025084
2019-01-24

Frequency of an output signal of a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure or a fault

#63
20190025081
2019-01-24

Magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure

#64
20180355711
2018-12-13

Flow measuring system to measure fluid flow in a subsea marine riser system

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20180313865
2018-11-01

Acoustic structural reflection interference mitigation systems, methods, and devices

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20180284148
2018-10-04

Omni-directional anemometer

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20180244501
2018-08-30

Passenger-transporting system with a device for determining the operating state

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20180220085
2018-08-02

Motion encoder

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20180210982
2018-07-26

Method of evaluating wind flow based on conservation of momentum and variation in terrain

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20180210447
2018-07-26

Wind detection systems and methods

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20180172809
2018-06-21

Optical heterodyne detection of air pressure, temperature, and wind velocity and method

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20180120341
2018-05-03

Centrifugal separator having a system for detecting rotation

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20180106644
2018-04-19

Tractor device utilizing an inductive sensor for motion control feedback

#74
20180080395
2018-03-22

Method and device for detecting reverse rotation of an internal combustion engine

#75
20180073387
2018-03-15

Device and method for measuring a rotational movement, in particular a rotational direction, and for detecting a shaft break

#76
20180031594
2018-02-01

Method and device for processing a signal produced by a sensor for detecting the rotation of a rotating target

#77
20170370961
2017-12-28

Position detecting device

#78
20170355572
2017-12-14

DETECTION DEVICE FOR CONVEYOR, A CONVEYOR, AND AN ASSOCIATED METHOD

#79
20170350915
2017-12-07

Measurement of the flow velocity and the flow direction of gases and liquids

#80
20170322233
2017-11-09

Twist independent mounting of a wheel speed sensor using a differential magnetoresistive sensor

#81
20170307377
2017-10-26

Method and device for testing movement speed

#82
20170089940
2017-03-30

AMR speed and direction sensor for use with magnetic targets

#83
20170052206
2017-02-23

Measurement device and measurement system using same

#84
20160350453
2016-12-01

Method of evaluation wind flow based on conservation of momentum and variation in terrain

#85
20160305975
2016-10-20

Arrangement for determining a revolution rate and direction of rotation of a rotating component

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20160282381
2016-09-29

Air movement visualization device

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20160223579
2016-08-04

System and method for a wind speed meter

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20160208763
2016-07-21

Methods and apparatus for generating a threshold signal in a magnetic field sensor

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20160161523
2016-06-09

Airflow test method, airflow test apparatus and clean room control system

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20160123780
2016-05-05

Methods and apparatus for error detection in a magnetic field sensor

#91
20160108842
2016-04-21

Method for communicating a malfunction of a system for measuring speed and direction of rotation of a rotary shaft

#92
20160054351
2016-02-25

Method and apparatus for monitoring speed and position of a rotating member

#93
20160040979
2016-02-11

Apparatus and method for monitoring moving objects in sensing area

#94
20150260748
2015-09-17

Method for estimating the speed of an engine in a predefined position

#95
20150192435
2015-07-09

Cart movement detection system for a dynamics track

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20150192408
2015-07-09

Method and system for analyzing motion of subject using event-based sensor

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20150160091
2015-06-11

Three-dimensional flow velocity vector, energy and mass gauge

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20150145504
2015-05-28

Magnetoresistive gear tooth sensor

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20150135822
2015-05-21

Ultrasonic airspeed and direction sensor system

#100
20150057878
2015-02-26

System and method for performing auto-location of a tire pressure monitoring sensor arranged with a vehicle wheel using confidence interval analysis and change of wheel direction

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20150022039
2015-01-22

Display operation conditions of electric motor

#102
20140375312
2014-12-25

Systems and methods for providing signal encoding representative of a signature region in a target

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20140288879
2014-09-25

Method and apparatus to detect direction and velocity of movement of equipment by using single sensor

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20140266163
2014-09-18

Systems and methods for rapid detection of rotation direction

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20140150551
2014-06-05

Device for measuring the angular velocity or velocity of a moving part and for detecting the direction of motion of the moving part

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20140125058
2014-05-08

Wind turbine optical wind sensor

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20140084904
2014-03-27

Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object

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20140084903
2014-03-27

Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object

#109
20140046510
2014-02-13

ESTIMATING A WIND VECTOR

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20140042877
2014-02-13

Controlling fan motors using capacitive sensing

#111
20140020458
2014-01-23

Method and apparatus for redundant detection of a rotational direction

#112
20130335063
2013-12-19

Position encoder

#113
20130006547
2013-01-03

Data acquisition method of substrate processing apparatus and sensing substrate

#114
20120318057
2012-12-20

Wind turbine optical wind sensor

#115
20120247201
2012-10-04

Golf accessory for determining wind strength and direction

#116
20120200858
2012-08-09

Self-mixing interference device with wave guide structure

#117
20110264301
2011-10-27

METHOD FOR DETERMINING A TRAVEL DIRECTION AND CONTROL DEVICE FOR A VEHICLE SYSTEM

#118
20110140645
2011-06-16

Dual purpose permanent magnet speed sensor and generator

#119
20110136512
2011-06-09

Velocity calculating apparatus, velocity calculating method, navigation apparatus, and mobile phone with navigation function

#120
20110125456
2011-05-26

Signal processing circuit for rotation detector

#121
20110080306
2011-04-07

Device and method for determining the direction, speed and/or distance of vehicles

#122
20110054832
2011-03-03

Method and device for the robust and efficient determination of the rotational direction and/or rotational speed of a wheel or a shaft

#123
20110040522
2011-02-17

Velocity detection device and servomotor

#124
20110025307
2011-02-03

Directional speed sensing systems and methods

#125
20100241302
2010-09-23

Rotation detecting device and rotation detecting method

#126
20100225507
2010-09-09

Decoder device and movement controller

#127
20100185361
2010-07-22

Method for detecting the direction of travel of a motor vehicle

#128
20100107747
2010-05-06

Method for incrementally ascertaining a rotation angle of a shaft

#129
20100106452
2010-04-29

Moving direction detector

#130
20100033707
2010-02-11

DEVICE AND METHOD FOR THREE-DIMENSIONAL FLOW MEASUREMENT

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20100026279
2010-02-04

Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation as a ferromagnetic object

#132
20100019917
2010-01-28

Signal processing circuit for rotation detecting device

#133
20090302833
2009-12-10

Magnetic detection apparatus

#134
20090102467
2009-04-23

METHOD AND APPARATUS FOR SENSING SHAFT ROTATION

#135
20090063103
2009-03-05

Signal processing circuit for rotation detector and method for detecting rotation of object

#136
20090063004
2009-03-05

Reverse engine rotation detection system

#137
20080315865
2008-12-25

Low power magnetic field sensor

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20080236265
2008-10-02

Method for determining the reversal of direction of rotation of an engine

#139
20080180090
2008-07-31

Magnetic speed, direction, and/or movement extent sensor

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20080180089
2008-07-31

Magnetic speed, direction, and/or movement extent sensor

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20080173079
2008-07-24

Method for detecting engine rotation direction

#142
20080158039
2008-07-03

Method for coding an output signal of a sensor

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20080133172
2008-06-05

Velocity detection apparatus

#144
20080133158
2008-06-05

Method and apparatus for detecting forward/reverse speeds of continuously variable transmission for vehicles

#145
20080010037
2008-01-10

Reverse rotation detector for internal combustion engine

#146
20070200561
2007-08-30

Magnetic sensor

#147
20070139036
2007-06-21

Signal processing circuit of rotation detecting device

#148
20060161273
2006-07-20

Method for determining a change in direction of rotation of a motor

#149
20050278136
2005-12-15

Method for detecting disturbances when determining the rotational speed of a rotor and evaluation circuit

#150
20050194964
2005-09-08

Detection signal processing circuit and detection signal processing apparatus for a rotation sensor

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20050068023
2005-03-31

Method and assembly for detecting the motion of an element

#152
13646406
2015-02-24

Position and direction determination using multiple single-channel encoders