BR9812405A - Aparelho e processo para determinar um parâmetro de dispositivo associado a um dispositivo de controle de processo, e, aparelho para determinar a banda morta de um dispositivo de controle de processo - Google Patents

Aparelho e processo para determinar um parâmetro de dispositivo associado a um dispositivo de controle de processo, e, aparelho para determinar a banda morta de um dispositivo de controle de processo

Info

Publication number
BR9812405A
BR9812405A BR9812405-6A BR9812405A BR9812405A BR 9812405 A BR9812405 A BR 9812405A BR 9812405 A BR9812405 A BR 9812405A BR 9812405 A BR9812405 A BR 9812405A
Authority
BR
Brazil
Prior art keywords
process control
control device
determining
dead band
parameter associated
Prior art date
Application number
BR9812405-6A
Other languages
English (en)
Inventor
Jimmie L Snowbarger
Eugene R Taylor Jr
Bruce F Grumstrup
Kenneth W Junk
Original Assignee
Fisher Controls Int
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 Fisher Controls Int filed Critical Fisher Controls Int
Publication of BR9812405A publication Critical patent/BR9812405A/pt

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Feedback Control In General (AREA)

Abstract

"APARELHO E PROCESSO PARA DETERMINAR UM PARâMETRO DE DISPOSITIVO ASSOCIADO A UM DISPOSITIVO DE CONTROLE DE PROCESSO, E, APARELHO PARA DETEMINAR A BANDA MORTA DE UM DISPOSITIVO DE CONTROLE DE PROCESSO" Um aparelho para determinar não obstrusivamente um ou mais parâmetros, tais como banda morta, tempo morto, ou tempo de resposta de um dispositivo de controle de processo que é conectado em linha em uma malha de controle de processo, inclui uma unidade de medição e uma unidade de processamento (30). A unidade de medição é acoplada à malha de controle de processo para detectar mudanças estocásticas em um sinal de controle enviado ao dispositivo de controle de processo e detectar uma indicação da resposta do dispositivo de controle de processo para as mudanças no sinal de controle, enquanto o dispositivo de controle de processo está operando em linha. A unidade de processamento calcula os parâmetros de dispositivo a partir de um ou mais conjuntos das mudanças detectadas no sinal de controle, e indicação de resposta detectada.
BR9812405-6A 1997-09-29 1998-09-17 Aparelho e processo para determinar um parâmetro de dispositivo associado a um dispositivo de controle de processo, e, aparelho para determinar a banda morta de um dispositivo de controle de processo BR9812405A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/939,364 US5966679A (en) 1995-10-30 1997-09-29 Method of and apparatus for nonobtrusively obtaining on-line measurements of a process control device parameter
PCT/US1998/019375 WO1999017177A1 (en) 1997-09-29 1998-09-17 Method of and apparatus for nonobtrusively obtaining on-line measurements of a process control device parameter

Publications (1)

Publication Number Publication Date
BR9812405A true BR9812405A (pt) 2000-09-19

Family

ID=25473060

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9812405-6A BR9812405A (pt) 1997-09-29 1998-09-17 Aparelho e processo para determinar um parâmetro de dispositivo associado a um dispositivo de controle de processo, e, aparelho para determinar a banda morta de um dispositivo de controle de processo

Country Status (11)

Country Link
US (1) US5966679A (pt)
EP (1) EP1019790B1 (pt)
JP (2) JP2001518653A (pt)
CN (1) CN1172223C (pt)
AR (1) AR013664A1 (pt)
AU (1) AU9569598A (pt)
BR (1) BR9812405A (pt)
CA (1) CA2304616C (pt)
DE (1) DE69832895T2 (pt)
MX (1) MXPA00003123A (pt)
WO (1) WO1999017177A1 (pt)

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Also Published As

Publication number Publication date
US5966679A (en) 1999-10-12
DE69832895D1 (de) 2006-01-26
AU9569598A (en) 1999-04-23
AR013664A1 (es) 2001-01-10
WO1999017177A1 (en) 1999-04-08
CA2304616C (en) 2007-03-06
MXPA00003123A (es) 2008-12-12
CN1172223C (zh) 2004-10-20
EP1019790A1 (en) 2000-07-19
JP2008299876A (ja) 2008-12-11
EP1019790B1 (en) 2005-12-21
DE69832895T2 (de) 2006-07-20
CA2304616A1 (en) 1999-04-08
CN1278930A (zh) 2001-01-03
JP2001518653A (ja) 2001-10-16

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