FI943403A - Method for measuring exposure values of an X-ray imaging device for automatic control of the image values - Google Patents

Method for measuring exposure values of an X-ray imaging device for automatic control of the image values Download PDF

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Publication number
FI943403A
FI943403A FI943403A FI943403A FI943403A FI 943403 A FI943403 A FI 943403A FI 943403 A FI943403 A FI 943403A FI 943403 A FI943403 A FI 943403A FI 943403 A FI943403 A FI 943403A
Authority
FI
Finland
Prior art keywords
values
imaging device
automatic control
ray imaging
measuring exposure
Prior art date
Application number
FI943403A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI98037B (en
FI943403A0 (en
FI98037C (en
Inventor
Juha Koivisto
Original Assignee
Instrumentarium Oy
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 Instrumentarium Oy filed Critical Instrumentarium Oy
Priority to FI943403A priority Critical patent/FI98037C/en
Publication of FI943403A0 publication Critical patent/FI943403A0/en
Priority to DE19525376A priority patent/DE19525376A1/en
Publication of FI943403A publication Critical patent/FI943403A/en
Publication of FI98037B publication Critical patent/FI98037B/en
Application granted granted Critical
Publication of FI98037C publication Critical patent/FI98037C/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
FI943403A 1994-07-18 1994-07-18 Method for measuring exposure values of an X-ray imaging device for automatic control of the image values FI98037C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI943403A FI98037C (en) 1994-07-18 1994-07-18 Method for measuring exposure values of an X-ray imaging device for automatic control of the image values
DE19525376A DE19525376A1 (en) 1994-07-18 1995-07-12 X ray imaging apparatus illumination value measurement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI943403A FI98037C (en) 1994-07-18 1994-07-18 Method for measuring exposure values of an X-ray imaging device for automatic control of the image values
FI943403 1994-07-18

Publications (4)

Publication Number Publication Date
FI943403A0 FI943403A0 (en) 1994-07-18
FI943403A true FI943403A (en) 1996-01-19
FI98037B FI98037B (en) 1996-12-13
FI98037C FI98037C (en) 1997-03-25

Family

ID=8541111

Family Applications (1)

Application Number Title Priority Date Filing Date
FI943403A FI98037C (en) 1994-07-18 1994-07-18 Method for measuring exposure values of an X-ray imaging device for automatic control of the image values

Country Status (2)

Country Link
DE (1) DE19525376A1 (en)
FI (1) FI98037C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19536489C1 (en) * 1995-09-29 1997-04-10 Siemens Ag X=ray diagnostic device with CCD image converter
US5694449A (en) * 1996-05-20 1997-12-02 General Electric Company Method and system for detecting and correcting erroneous exposures generated during x-ray imaging
US5751783A (en) * 1996-12-20 1998-05-12 General Electric Company Detector for automatic exposure control on an x-ray imaging system
US5896169A (en) * 1997-09-16 1999-04-20 Philips Electronics North America Corporation Video level measuring apparatus for X-ray imaging systems

Also Published As

Publication number Publication date
DE19525376A1 (en) 1996-01-25
FI98037B (en) 1996-12-13
FI943403A0 (en) 1994-07-18
FI98037C (en) 1997-03-25

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: INSTRUMENTARIUM OY

BB Publication of examined application