DK177479A - Fremgangsmaade til overvaagning af et signals aendringshastighed samt apparat til udoevelse af fremgangsmaaden - Google Patents

Fremgangsmaade til overvaagning af et signals aendringshastighed samt apparat til udoevelse af fremgangsmaaden

Info

Publication number
DK177479A
DK177479A DK177479A DK177479A DK177479A DK 177479 A DK177479 A DK 177479A DK 177479 A DK177479 A DK 177479A DK 177479 A DK177479 A DK 177479A DK 177479 A DK177479 A DK 177479A
Authority
DK
Denmark
Prior art keywords
procedure
monitoring
rate
change
signal
Prior art date
Application number
DK177479A
Other languages
English (en)
Other versions
DK156780C (da
DK156780B (da
Inventor
B J Bout
J P Wyk
Original Assignee
Anglo Amer Corp South Africa
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 Anglo Amer Corp South Africa filed Critical Anglo Amer Corp South Africa
Publication of DK177479A publication Critical patent/DK177479A/da
Publication of DK156780B publication Critical patent/DK156780B/da
Application granted granted Critical
Publication of DK156780C publication Critical patent/DK156780C/da

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Manipulation Of Pulses (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Control Of Electric Motors In General (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Emergency Alarm Devices (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Measurement Of Current Or Voltage (AREA)
DK177479A 1978-05-01 1979-04-30 Fremgangsmaade til overvaagning af et signals aendringshastighed samt apparat til udoevelse af fremgangsmaaden DK156780C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA7802493 1978-05-01
ZA00782493A ZA782493B (en) 1978-05-01 1978-05-01 Rate of change detection

Publications (3)

Publication Number Publication Date
DK177479A true DK177479A (da) 1979-11-02
DK156780B DK156780B (da) 1989-10-02
DK156780C DK156780C (da) 1990-02-19

Family

ID=25572893

Family Applications (1)

Application Number Title Priority Date Filing Date
DK177479A DK156780C (da) 1978-05-01 1979-04-30 Fremgangsmaade til overvaagning af et signals aendringshastighed samt apparat til udoevelse af fremgangsmaaden

Country Status (19)

Country Link
US (1) US4309663A (da)
JP (1) JPS5530794A (da)
AU (1) AU524975B2 (da)
BE (1) BE875952A (da)
BR (1) BR7902684A (da)
CA (1) CA1140219A (da)
CH (1) CH648129A5 (da)
DE (1) DE2917454A1 (da)
DK (1) DK156780C (da)
FR (1) FR2425076A1 (da)
GB (1) GB2020042B (da)
IE (1) IE48296B1 (da)
IN (1) IN152221B (da)
IT (1) IT1112775B (da)
LU (1) LU81203A1 (da)
NL (1) NL7903362A (da)
NO (1) NO151514C (da)
SE (1) SE439851B (da)
ZA (1) ZA782493B (da)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA785255B (en) * 1978-09-15 1979-12-27 Anglo Amer Corp South Africa Alarm system
EP0021554B1 (en) * 1979-03-14 1983-06-22 LUCAS INDUSTRIES public limited company Method and device for measurement of the rate of change of frequency of a pulse train
JPS57795A (en) * 1980-06-04 1982-01-05 Hitachi Ltd Method of detecting and warning gas leakage
JPS5726227A (en) * 1980-07-22 1982-02-12 Nippon Denso Co Ltd Abnormal alarm device
GB2085599B (en) * 1980-09-30 1984-09-19 Gould Advance Ltd Automatic drift correction
DE3111684A1 (de) * 1981-03-25 1982-10-14 FHN-Verbindungstechnik GmbH, 8501 Eckental "elektronische steuerschaltung fuer den antriebsmotor eines versenkbaren autofensters"
US4582672A (en) * 1982-08-11 1986-04-15 Westinghouse Electric Corp. Method and apparatus for preventing inadvertent criticality in a nuclear fueled electric powering generating unit
JPS59172093A (ja) * 1983-03-21 1984-09-28 高橋　信夫 火災などの異常警報装置
JPS60135000A (ja) * 1983-12-23 1985-07-18 ホーチキ株式会社 火災報知装置
JPS60134999A (ja) * 1983-12-23 1985-07-18 ホーチキ株式会社 火災報知装置
JPS6219999A (ja) * 1985-07-18 1987-01-28 ホーチキ株式会社 火災報知装置
DE4116308A1 (de) * 1991-05-15 1992-11-19 Schleicher Relais Vorrichtung zur intermittierenden messung einer messgroesse ueber laengere zeitraeume
US5461223A (en) * 1992-10-09 1995-10-24 Eastman Kodak Company Bar code detecting circuitry
DE102005058574B4 (de) * 2005-12-08 2016-03-24 Hella Kgaa Hueck & Co. Vorrichtung zum Steuern der Zusatzleistung einer Gasentladungslampe mit einem Oszillator, dessen Frequenz zum Ersetzen eines RC-Zeitgliedes geändert wird

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132947A (en) * 1967-09-06 1979-01-02 General Electric Company Waveshape detector
US3600688A (en) * 1970-04-21 1971-08-17 Bethlehem Steel Corp Signal discriminator circuit
US3711779A (en) * 1970-11-17 1973-01-16 Instrumentation Specialties Co Apparatus for determining and characterizing the slopes of time-varying signals
JPS5115886B2 (da) * 1972-05-18 1976-05-20
AU478432B2 (en) * 1972-12-01 1975-05-15 Wormald International Ltd. Improvements in temperature monitoring equipment
FR2231972B1 (da) * 1973-05-29 1977-04-29 Electricite De France
DE2440309A1 (de) * 1973-08-24 1975-03-27 Anglo Amer Corp South Africa Verfahren und vorrichtung zum aufspueren von braenden
AU481144B2 (en) * 1973-10-04 1977-02-21 Dulux Australia Ltd. POLYMER BEAD PROCESS Specification
US3958132A (en) * 1974-04-25 1976-05-18 Sun Oil Company Of Pennsylvania Slope change detector
DE2435084C3 (de) * 1974-07-22 1978-12-07 Fa. Carl Zeiss, 7920 Heidenheim Anordnung zur zeitlichen Verfolgung eines Meßvorganges
DE2453013C2 (de) * 1974-11-08 1984-09-20 Hellige Gmbh, 7800 Freiburg Medizinisches Gerät zur automatischen Überwachung der Temperatur des menschlichen Körpers
GB1527600A (en) * 1974-12-13 1978-10-04 Mullard Ltd Video signal analysis
JPS5230088A (en) * 1975-08-30 1977-03-07 Green Cross Corp Device for detecting abnormal position of skin impedance
GB1478810A (en) * 1975-11-20 1977-07-06 Standard Telephones Cables Ltd Detection circuits for monitoring current changes
US4041404A (en) * 1976-06-01 1977-08-09 Leeds & Northrup Company Apparatus and method for detecting when a measured variable represented by a string of digital pulses reaches a plateau
US4086651A (en) * 1976-06-29 1978-04-25 The Perkin-Elmer Corporation Electrical output peak detecting apparatus
FR2397640A1 (fr) * 1977-07-12 1979-02-09 Thomson Csf Dispositif de mesure de la pente moyenne d'une courbe representative d'un phenomene en evolution

Also Published As

Publication number Publication date
JPS5530794A (en) 1980-03-04
SE439851B (sv) 1985-07-01
NL7903362A (nl) 1979-11-05
AU4652279A (en) 1979-11-08
DK156780C (da) 1990-02-19
BR7902684A (pt) 1979-11-27
LU81203A1 (fr) 1979-09-10
SE7903750L (sv) 1979-11-02
ZA782493B (en) 1979-12-27
CA1140219A (en) 1983-01-25
GB2020042A (en) 1979-11-07
GB2020042B (en) 1982-09-02
US4309663A (en) 1982-01-05
IN152221B (da) 1983-11-19
NO151514C (no) 1985-04-24
IE791213L (en) 1979-11-01
CH648129A5 (de) 1985-02-28
NO791419L (no) 1979-11-02
DE2917454A1 (de) 1979-11-08
FR2425076A1 (fr) 1979-11-30
NO151514B (no) 1985-01-07
DK156780B (da) 1989-10-02
IE48296B1 (en) 1984-11-28
FR2425076B1 (da) 1984-10-05
BE875952A (nl) 1979-08-16
IT1112775B (it) 1986-01-20
IT7922288A0 (it) 1979-04-30
AU524975B2 (en) 1982-10-14

Similar Documents

Publication Publication Date Title
DK538078A (da) Fremgangsmaade og apparat til undertrykkelse af forstyrrelsessignaler i et nyttesignal
DK158172C (da) Fremgangsmaade og apparat til overvaagning af et omraade
GB2042739B (en) Method and apparatus for determining the attenuation and/or group delay of a signal path
SE7901438L (sv) Forfarande samt apparat for uppteckning och uttagning av en modulerad elektrisk signal som representerar videoinformation
DK26579A (da) Filterelement og fremgangsmaade til fremstilling heraf samt apparat til udfoerelse af fremgangsmaaden
DK16881A (da) Apparat til frembringelse af hjerneboelgesignaler
DK157393C (da) Apparat til detektering af revnede riskorn
DK444677A (da) Fremgangsmaade og apparat til frembringelse af seismiske signaler
GB2020043A (en) Method and apparatus for measuring the frequency or periodof a signal
DK177479A (da) Fremgangsmaade til overvaagning af et signals aendringshastighed samt apparat til udoevelse af fremgangsmaaden
DK149673C (da) Apparat til gengivelse af informationssignaler
NO782478L (no) Apparat for frembringelse av seismiske boelger
SE7806755L (sv) Sett och anordning for overvakning av felaktiga regleringssignaler
DK316078A (da) Fremgangsmaade og apparat til maaling af en hoejtalers karakteristikker
SE7809040L (sv) Apparat for indrivning av festorgan
JPS53108480A (en) Method of and apparatus for signal measurement and indication control
DK114977A (da) Fremgangsmade til fremstilling af et rogfilter samt apparat til udovelse af fremgangsmaden
DK153605C (da) Apparat til overvaagning af taktsignalerne i et digitalt anlaeg
DK144665C (da) Apparat til understoetning af en roerledning paa bunden af et vandomraade
SE7812923L (sv) Sett och anordning for identifiering och korrigering av en datasignals polaritet
GB2035578B (en) Method and apparatus for determining the attenuation of a signal path
DK186078A (da) Apparat til kontinuerlig maaling af viskusitet
DK369178A (da) Fremgangsmaade til duplikering samt apparat til udoevelse af fremgangsmaaden
NO790735L (no) Fremgangsmaate til agglomerering samt apparat til utoevelse av fremgangsmaaten
DK58878A (da) Spundne proteiner samt fremgangsmaade til fremstilling af saadanne proteiner og apparat til udoevelse af fremgangsmaaden

Legal Events

Date Code Title Description
PBP Patent lapsed