FR2352306A1 - Procede d'identification de la resistance d'un filament de tube electronique, independamment de la resistance de contact - Google Patents

Procede d'identification de la resistance d'un filament de tube electronique, independamment de la resistance de contact

Info

Publication number
FR2352306A1
FR2352306A1 FR7714897A FR7714897A FR2352306A1 FR 2352306 A1 FR2352306 A1 FR 2352306A1 FR 7714897 A FR7714897 A FR 7714897A FR 7714897 A FR7714897 A FR 7714897A FR 2352306 A1 FR2352306 A1 FR 2352306A1
Authority
FR
France
Prior art keywords
resistance
identifying
independent
electronic tube
tube filament
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.)
Granted
Application number
FR7714897A
Other languages
English (en)
Other versions
FR2352306B1 (fr
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of FR2352306A1 publication Critical patent/FR2352306A1/fr
Application granted granted Critical
Publication of FR2352306B1 publication Critical patent/FR2352306B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Resistance Heating (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
FR7714897A 1976-05-20 1977-05-16 Procede d'identification de la resistance d'un filament de tube electronique, independamment de la resistance de contact Granted FR2352306A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/688,475 US4020416A (en) 1976-05-20 1976-05-20 Method of detecting heater resistance independent of contact resistance

Publications (2)

Publication Number Publication Date
FR2352306A1 true FR2352306A1 (fr) 1977-12-16
FR2352306B1 FR2352306B1 (fr) 1982-10-22

Family

ID=24764575

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7714897A Granted FR2352306A1 (fr) 1976-05-20 1977-05-16 Procede d'identification de la resistance d'un filament de tube electronique, independamment de la resistance de contact

Country Status (9)

Country Link
US (1) US4020416A (fr)
JP (1) JPS52142471A (fr)
CA (1) CA1056013A (fr)
DE (1) DE2722661A1 (fr)
FI (1) FI771528A (fr)
FR (1) FR2352306A1 (fr)
GB (1) GB1576445A (fr)
IT (1) IT1078045B (fr)
PL (1) PL116710B1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5576371A (en) * 1978-12-01 1980-06-09 Minolta Camera Co Ltd Failure detecting method in heat fixing device of electrophotographic copier
US4721957A (en) * 1984-06-06 1988-01-26 Trw Inc. Ground shift compensated parameter measurement system
JPS61156151U (fr) * 1985-03-19 1986-09-27
JPH0687642B2 (ja) * 1986-12-15 1994-11-02 株式会社日立製作所 回転電機の回転子巻線異常診断装置
GB9121506D0 (en) * 1991-10-10 1991-11-27 Smiths Industries Plc Resistance monitors
US5481200A (en) * 1993-09-15 1996-01-02 Rosemont Inc. Field transmitter built-in test equipment
US5614832A (en) * 1995-06-02 1997-03-25 International Business Machines Corporation High voltage protected ohmmeter
US7018800B2 (en) * 2003-08-07 2006-03-28 Rosemount Inc. Process device with quiescent current diagnostics
US9182256B2 (en) * 2009-07-09 2015-11-10 Rosemount Inc. Process variable transmitter with two-wire process control loop diagnostics
US10367612B2 (en) 2015-09-30 2019-07-30 Rosemount Inc. Process variable transmitter with self-learning loop diagnostics
KR102639446B1 (ko) 2017-02-21 2024-02-21 소후 인코포레이티드 치과 절삭 가공용 지르코니아 피절삭체와 그 제조 방법 및 치과 절삭 가공용 지르코니아 피절삭체용 투명성 향상액과 그 사용 방법
JP7433806B2 (ja) 2018-08-22 2024-02-20 株式会社松風 歯科切削加工用ジルコニア被切削体及びその製造方法
JP2021137404A (ja) 2020-03-06 2021-09-16 株式会社松風 イットリアとアルミナの配合が異なる層を有するジルコニア被切削体

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414811A (en) * 1964-08-24 1968-12-03 Dale Electronics Method and apparatus for testing the resistance characteristics of selfheated electrical resistors
CH492984A (de) * 1969-01-25 1970-06-30 Bodenseewerk Perkin Elmer Co Auf den Anstieg eines Signals ansprechende Schaltungsanordnung
FR2315699A1 (fr) * 1975-06-27 1977-01-21 Thomson Csf Appareil de mesure de resistances en fonction de leur echauffement avec determination de leur capacite calorifique et du coefficient de perte de chaleur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899141A (en) * 1959-08-11 Det circuit
US3212001A (en) * 1961-08-30 1965-10-12 Western Electric Co Electrical circuit for testing the current-voltage relationship of electrical devices
US3464007A (en) * 1966-11-22 1969-08-26 Northern Electric Co Apparatus for sorting electrical components by current consumption at prescribed voltage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414811A (en) * 1964-08-24 1968-12-03 Dale Electronics Method and apparatus for testing the resistance characteristics of selfheated electrical resistors
CH492984A (de) * 1969-01-25 1970-06-30 Bodenseewerk Perkin Elmer Co Auf den Anstieg eines Signals ansprechende Schaltungsanordnung
FR2315699A1 (fr) * 1975-06-27 1977-01-21 Thomson Csf Appareil de mesure de resistances en fonction de leur echauffement avec determination de leur capacite calorifique et du coefficient de perte de chaleur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/76 *

Also Published As

Publication number Publication date
DE2722661A1 (de) 1977-12-01
CA1056013A (fr) 1979-06-05
IT1078045B (it) 1985-05-08
US4020416A (en) 1977-04-26
PL116710B1 (en) 1981-06-30
JPS568976B2 (fr) 1981-02-26
PL198265A1 (pl) 1978-01-16
FI771528A (fr) 1977-11-21
FR2352306B1 (fr) 1982-10-22
GB1576445A (en) 1980-10-08
JPS52142471A (en) 1977-11-28

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Legal Events

Date Code Title Description
ST Notification of lapse