DE69108073D1 - Verfahren und Gerät zur elektrischen Signalverarbeitung und Spannungswellenfühler. - Google Patents

Verfahren und Gerät zur elektrischen Signalverarbeitung und Spannungswellenfühler.

Info

Publication number
DE69108073D1
DE69108073D1 DE69108073T DE69108073T DE69108073D1 DE 69108073 D1 DE69108073 D1 DE 69108073D1 DE 69108073 T DE69108073 T DE 69108073T DE 69108073 T DE69108073 T DE 69108073T DE 69108073 D1 DE69108073 D1 DE 69108073D1
Authority
DE
Germany
Prior art keywords
electrical signal
component
mean level
enveloper
rectified
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69108073T
Other languages
English (en)
Other versions
DE69108073T2 (de
Inventor
Trevor James Holroyd
Simon Daniel King
Timothy Edward Tracey
Neil Randall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce DSV Ltd
Original Assignee
Rolls Royce DSV Ltd
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 Rolls Royce DSV Ltd filed Critical Rolls Royce DSV Ltd
Publication of DE69108073D1 publication Critical patent/DE69108073D1/de
Application granted granted Critical
Publication of DE69108073T2 publication Critical patent/DE69108073T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • F02P5/152—Digital data processing dependent on pinking
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4454—Signal recognition, e.g. specific values or portions, signal events, signatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/449—Statistical methods not provided for in G01N29/4409, e.g. averaging, smoothing and interpolation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Measuring Fluid Pressure (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Selective Calling Equipment (AREA)
DE69108073T 1990-02-21 1991-01-17 Verfahren und Gerät zur elektrischen Signalverarbeitung und Spannungswellenfühler. Expired - Fee Related DE69108073T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909003878A GB9003878D0 (en) 1990-02-21 1990-02-21 A method and apparatus for processing electrical signals

Publications (2)

Publication Number Publication Date
DE69108073D1 true DE69108073D1 (de) 1995-04-20
DE69108073T2 DE69108073T2 (de) 1995-07-20

Family

ID=10671360

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69108073T Expired - Fee Related DE69108073T2 (de) 1990-02-21 1991-01-17 Verfahren und Gerät zur elektrischen Signalverarbeitung und Spannungswellenfühler.

Country Status (5)

Country Link
EP (1) EP0443714B1 (de)
JP (1) JPH04215060A (de)
AT (1) ATE120002T1 (de)
DE (1) DE69108073T2 (de)
GB (2) GB9003878D0 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110108352B (zh) * 2019-05-10 2021-12-14 上海岚盒信息技术有限公司 振动巡检仪及其低功耗测量方法、计算机可读存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588695A (en) * 1967-11-13 1971-06-28 Helm Instr Co Inc Condition monitoring apparatus
JPS57168121A (en) * 1981-04-08 1982-10-16 Mitsubishi Electric Corp Vibration measuring device
GB8824793D0 (en) * 1988-10-22 1988-11-30 Sensotect Ltd Method & apparatus for processing electrical signals
US4942387A (en) * 1989-09-05 1990-07-17 General Electric Company Apparatus and method for tool break and wear detection

Also Published As

Publication number Publication date
EP0443714B1 (de) 1995-03-15
EP0443714A3 (en) 1992-03-04
EP0443714A2 (de) 1991-08-28
GB9017867D0 (en) 1990-09-26
ATE120002T1 (de) 1995-04-15
JPH04215060A (ja) 1992-08-05
DE69108073T2 (de) 1995-07-20
GB9003878D0 (en) 1990-04-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee