FR2146765A5 - - Google Patents

Info

Publication number
FR2146765A5
FR2146765A5 FR7225489A FR7225489A FR2146765A5 FR 2146765 A5 FR2146765 A5 FR 2146765A5 FR 7225489 A FR7225489 A FR 7225489A FR 7225489 A FR7225489 A FR 7225489A FR 2146765 A5 FR2146765 A5 FR 2146765A5
Authority
FR
France
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
Application number
FR7225489A
Inventor
B Hermeyer
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR2146765A5 publication Critical patent/FR2146765A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/38—Exposure time
    • H05G1/42—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube
    • H05G1/44—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube in which the switching instant is determined by measuring the amount of radiation directly

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)
  • Details Of Television Scanning (AREA)
FR7225489A 1971-07-17 1972-07-13 Expired FR2146765A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2135921A DE2135921C3 (de) 1971-07-17 1971-07-17 Eigengetriggerte Schaltungsanordnung für einen Meßverstärker

Publications (1)

Publication Number Publication Date
FR2146765A5 true FR2146765A5 (fr) 1973-03-02

Family

ID=5814069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7225489A Expired FR2146765A5 (fr) 1971-07-17 1972-07-13

Country Status (5)

Country Link
US (1) US3854096A (fr)
DE (1) DE2135921C3 (fr)
FR (1) FR2146765A5 (fr)
GB (1) GB1391799A (fr)
SE (1) SE377028B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2411630C2 (de) * 1974-03-12 1982-01-14 Philips Patentverwaltung Gmbh, 2000 Hamburg "Röntgeneinrichtung mit einem Belichtungsautomaten mit automatischer Wahl und Einschaltung der Meßfelder"
DE2443681A1 (de) * 1974-09-12 1976-03-25 Siemens Ag Zahnaerztliche roentgendiagnostikeinrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537914A (en) * 1946-06-01 1951-01-09 Automatic X Ray Corp Control system

Also Published As

Publication number Publication date
GB1391799A (en) 1975-04-23
DE2135921B2 (de) 1973-06-28
US3854096A (en) 1974-12-10
DE2135921C3 (de) 1974-01-24
DE2135921A1 (de) 1973-01-25
SE377028B (fr) 1975-06-16

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Legal Events

Date Code Title Description
ST Notification of lapse