IT8622675A0 - PROPELLER SPEED AND PHASE DETECTOR. - Google Patents

PROPELLER SPEED AND PHASE DETECTOR.

Info

Publication number
IT8622675A0
IT8622675A0 IT8622675A IT2267586A IT8622675A0 IT 8622675 A0 IT8622675 A0 IT 8622675A0 IT 8622675 A IT8622675 A IT 8622675A IT 2267586 A IT2267586 A IT 2267586A IT 8622675 A0 IT8622675 A0 IT 8622675A0
Authority
IT
Italy
Prior art keywords
phase detector
propeller speed
propeller
speed
detector
Prior art date
Application number
IT8622675A
Other languages
Italian (it)
Other versions
IT1199757B (en
Inventor
D Collopy Paul
W Bennett George
Original Assignee
Gen Electric
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gen Electric filed Critical Gen Electric
Publication of IT8622675A0 publication Critical patent/IT8622675A0/en
Application granted granted Critical
Publication of IT1199757B publication Critical patent/IT1199757B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
    • G01P3/565—Devices characterised by the use of electric or magnetic means for comparing two speeds by measuring or by comparing the phase of generated current or voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
    • B64C11/50—Phase synchronisation between multiple propellers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/489—Digital circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
IT22675/86A 1985-12-12 1986-12-12 SPEED AND PROPELLER PHASE DETECTOR IT1199757B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80814785A 1985-12-12 1985-12-12

Publications (2)

Publication Number Publication Date
IT8622675A0 true IT8622675A0 (en) 1986-12-12
IT1199757B IT1199757B (en) 1988-12-30

Family

ID=25198002

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22675/86A IT1199757B (en) 1985-12-12 1986-12-12 SPEED AND PROPELLER PHASE DETECTOR

Country Status (7)

Country Link
JP (1) JPS62156565A (en)
CA (1) CA1258914A (en)
DE (1) DE3641777A1 (en)
FR (1) FR2591752B1 (en)
GB (2) GB2184305B (en)
IT (1) IT1199757B (en)
SE (1) SE465872B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2554480B2 (en) * 1986-11-07 1996-11-13 株式会社 ゼクセル Time measuring device
GB2281624A (en) * 1993-07-30 1995-03-08 Rover Group Engine crankshaft position determination
DE4329521C2 (en) * 1993-09-02 1996-09-26 Deutsche Forsch Luft Raumfahrt Device for measuring rotor data in helicopters with articulated rotors for determining roll and pitch accelerations
DE19844780A1 (en) * 1998-09-30 2000-04-06 Bosch Gmbh Robert Pulse wheel rotational speed determination method for determining speed of vehicle, involves selecting pulses at unequal intervals
GB0129446D0 (en) * 2001-12-08 2002-01-30 Lucas Industries Ltd Angular velocity sensor
FR2932850B1 (en) * 2008-06-23 2010-08-13 Snecma METHOD AND SYSTEM FOR DETERMINING THE ANGULAR POSITION OF A TURBOJET ROTOR
DE102009016106A1 (en) * 2009-02-20 2010-08-26 Rolls-Royce Deutschland Ltd & Co Kg Method for determining rotational speed of e.g. low pressure shaft of aircraft engine, involves producing rotational speed signals for rotary shaft by magnetic coding of shaft and recognizing and evaluating signals by two signal sensors
DE102009016105B4 (en) * 2009-02-20 2017-11-16 Rolls-Royce Deutschland Ltd & Co Kg Method and device for measuring the load of rotating shafts
JP5762685B2 (en) * 2010-02-09 2015-08-12 新潟原動機株式会社 Control rotational speed calculation device, control rotational speed calculation method, and control rotational speed calculation program

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1099928A (en) * 1965-07-26 1968-01-17 Ici Ltd Speed detection
DE2553806C3 (en) * 1975-11-29 1979-03-29 Wabco Westinghouse Gmbh, 3000 Hannover Circuit arrangement for digital measurement of the period of an alternating voltage
NL7711634A (en) * 1977-10-24 1979-04-26 Philips Nv TACHOMETER SYSTEM.
JPS54143679A (en) * 1978-04-28 1979-11-09 Toyota Motor Co Ltd Method of detecting rotational frequency of rotary machine
DE3018528C2 (en) * 1980-05-14 1986-06-05 MTC, Meßtechnik und Optoelektronik AG, Neuenburg/Neuchâtel Method and device for measuring the angular velocity of a rotating body
JPS57144465A (en) * 1981-02-28 1982-09-07 Hitachi Ltd Speed detecting method
WO1982003125A1 (en) * 1981-03-03 1982-09-16 Stevenson Thomas T Speed and timing angle measurement
JPS5944991A (en) * 1982-09-02 1984-03-13 Hitachi Ltd Rotating speed detecting method for brushless motor
JPS6080769A (en) * 1983-10-07 1985-05-08 Hitachi Ltd Detection of motor speed

Also Published As

Publication number Publication date
GB2219703A (en) 1989-12-13
GB2184305A (en) 1987-06-17
SE465872B (en) 1991-11-11
GB2184305B (en) 1990-03-21
GB8627275D0 (en) 1986-12-17
GB8915275D0 (en) 1989-08-23
DE3641777A1 (en) 1987-06-19
FR2591752A1 (en) 1987-06-19
IT1199757B (en) 1988-12-30
GB2219703B (en) 1990-04-04
SE8605218D0 (en) 1986-12-04
JPS62156565A (en) 1987-07-11
SE8605218L (en) 1987-06-13
FR2591752B1 (en) 1992-07-31
CA1258914A (en) 1989-08-29

Similar Documents

Publication Publication Date Title
DE3789004D1 (en) Flowable pearlescent concentrate.
FI850481A0 (en) FOERFARANDE FOER BESTAEMNING AV MOTMEDEL ELLER ANTIGENER.
FR2603100B1 (en) STEERING ANGLE DETECTOR
IT8622675A0 (en) PROPELLER SPEED AND PHASE DETECTOR.
FI861504A0 (en) ANVAENDNING AV EN HANDSTAEMPEL MED EN OMSVAENGBAR STAEMPELKROPP FOER PAOFOERANDE AV LIMAEMNE OCH MOTSVARANDE FORMAD HANDSTAEMPEL.
DE3680771D1 (en) ISOXAZOLOPYRIDOPHENOXAZINE AND ISOTHIAZOLOPYRIDOPHENOXAZINE DERIVATIVES.
DK405687A (en) LAKE DETECTOR
FR2577516B1 (en) HELICOPTER ROTOR
DE3680775D1 (en) ISOXAZOLOPYRIDOBENZOXAZINE AND ISOTHIAZOLOPYRIDOBENZOXAZINE DERIVATIVES.
DE3683463D1 (en) SPEED DETECTOR.
FI860525A (en) NY JORDBRUKSKEMIKALIE MED NAMNET 'SUBSTANCE NO.51262'.
DE3685905D1 (en) HIGH SPEED COUNTER.
KR870004977A (en) 2,2'-Bi-1H-imidazole and its preparation method
FI871049A (en) REGLERSYSTEM FOER PROPELLER MED REGLERBAR PROPELLERSTIGNING.
FI863651A (en) FOERFARANDE FOER FRAMSTAELLNING AV RANITIDIN ELLER SYRAADDITIONSSALTER DAERAV.
FI863011A0 (en) FOERFARANDE FOER FORMNING ELLER EFTERFORMNING AV FORMBARA NAERINGSMEDELSMASSOR.
IT8560470V0 (en) MULTINODO "DESIGN AND BUILD".
KR870007856U (en) bag
FI854545A (en) FOERFARANDE FOER TILLVERKNING AV BOTTEN AV EN VAESKA OCH EN VAESKA TILLVERKAD ENLIGT FOERFARANDET.
IT1225454B (en) COMPOSED CINEMATISM, MULTIPLIER OF TRAVEL AND SPEED.
RO92120A2 (en) EFFORT LIMITER
IT8520855A0 (en) CONTINUOUS SPEED VARIANT.
BR8500454A (en) PROPELLER
IT8511793V0 (en) "STENDIARREDO"
IT8533609V0 (en) "UTILITY-NOTES"

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19931228